MT36HTJ25672PY-667XX datasheet, PDF

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MT36HTJ25672PY-667XX: DescriptionDDR DRAM Module, 256MX72, 0.45ns, CMOS, LEAD FREE, DIMM-240; Categorystorage storage; File Size1MB，46 Pages; ManufacturerMicron Technology; Websitehttp://www.mdtic.com.tw/; Environmental Compliance

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MT36HTJ25672PY-667XX Overview

DDR DRAM Module, 256MX72, 0.45ns, CMOS, LEAD FREE, DIMM-240

MT36HTJ25672PY-667XX Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Micron Technology
Parts packaging code	DIMM
package instruction	DIMM,
Contacts	240
Reach Compliance Code	compliant
ECCN code	EAR99
access mode	DUAL BANK PAGE BURST
Maximum access time	0.45 ns
Other features	AUTO/SELF REFRESH
JESD-30 code	R-XDMA-N240
JESD-609 code	e4
memory density	19327352832 bit
Memory IC Type	DDR DRAM MODULE
memory width	72
Number of functions	1
Number of ports	1
Number of terminals	240
word count	268435456 words
character code	256000000
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature
organize	256MX72
Package body material	UNSPECIFIED
encapsulated code	DIMM
Package shape	RECTANGULAR
Package form	MICROELECTRONIC ASSEMBLY
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
self refresh	YES
Maximum supply voltage (Vsup)	1.9 V
Minimum supply voltage (Vsup)	1.7 V
Nominal supply voltage (Vsup)	1.8 V
surface mount	NO
technology	CMOS
Temperature level	OTHER
Terminal surface	Gold (Au)
Terminal form	NO LEAD
Terminal location	DUAL
Maximum time at peak reflow temperature	30

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2GB, 4GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM

Features

DDR2 SDRAM Registered DIMM

MT36HTJ25672(P) – 2GB

MT36HTJ51272(P) – 4GB

For the latest data sheet, please refer to the Micron



Web site:

www.micron.com/products/modules

Features

• 240-pin, registeed dual in-line memory module

(RDIMM)

• Fast data transfer rates: PC2-3200, PC2-4200, or

PC2-5300

• Utilizes 400 MT/s, 533MT/s, and 667 MT/s DDR2

SDRAM components

• Supports ECC error detection and correction

• 2GB (256 Meg x 72), 4GB (512 Meg x 72)

• V

= V

Q = +1.8V

• V

DDSPD

= +1.7V to +3.6V

• JEDEC standard 1.8V I/O (SSTL_18-compatible)

• Differential data strobe (DQS, DQS#) option

• Four-bit prefetch architecture

• DLL to align DQ and DQS transitions with CK

• Multiple internal device banks for concurrent

operation

• Supports duplicate output strobe (RDQS/RDQS#)

• Programmable CAS# latency (CL)

• Posted CAS# additive latency (AL)

• WRITE latency = READ latency - 1

• Programmable burst lengths: 4 or 8

• Adjustable data-output drive strength

• 64ms, 8,192-cycle refresh

• On-die termination (ODT)

• Serial Presence Detect (SPD) with EEPROM

• Gold edge contacts

• Dual rank

Figure 1: 240-Pin DIMM (MO-237 R/C “K”)

Height 1.18in. (29.97mm)

Options

• Parity

• Package

240-pin DIMM (lead-free)

• Frequency/CAS Latency

3.0ns @ CL = 5 (DDR2-667)

3.75ns @ CL = 4 (DDR2-533)

5.0ns @ CL = 3 (DDR2-400)

• PCB Height

1.18in. (29.97mm)

Marking

-667

-53E

-40E

Notes:1. CL = CAS (READ) Latency; Registered mode

will add one clock cycle to CL.

2. Contact Micron for product availability.

pdf: 09005aef80ef2a81, source: 09005aef80ef1c07

HTJ36C256_512x72G_1.fm - Rev. B 4/05 EN

Micron Technology, Inc., reserves the right to change products or specifications without notice.

2GB, 4GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM

Table of Contents

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Pin Assignments and Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

PLL and Register Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Serial Presence-Detect Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Mode Register (MR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Burst Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Burst Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

DLL Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Write Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Power-Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

CAS Latency (CL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Extended Mode Register (EMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

DLL Enable/Disable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Output Drive Strength. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

DQS# Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

RDQS Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Output Enable/Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

On Die Termination (ODT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Off-Chip Driver (OCD) Impedance Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Posted CAS Additive Latency (AL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Extended Mode Register 2 (EMR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Extended Mode Register 3 (EMR3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Command Truth Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

DC Operating Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Input Electrical Characteristics and Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Specifications and Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

7 Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

AC Timing and Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

PLL and Register Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Serial Presence-Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

SPD Clock and Data Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

SPD Start Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

SPD Stop Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

SPD Acknowledge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Module Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Data Sheet Designation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

pdf: 09005aef80ef2a81, source: 09005aef80ef1c07

HTJ36C256_512x72GTOC.fm - Rev. B 4/05 EN

Micron Technology, Inc., reserves the right to change products or specifications without notice.

2GB, 4GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM

List of Figures

Figure 1:

Figure 2:

Figure 3:

Figure 4:

Figure 5:

Figure 6:

Figure 7:

Figure 8:

Figure 9:

Figure 10:

Figure 11:

Figure 12:

Figure 13:

Figure 14:

Figure 15:

Figure 16:

240-Pin DIMM (MO-237 R/C “K”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Pin Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

DDR2 Power-Up and Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Mode Register (MR) Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

CAS Latency (CL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Extended Mode Register Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

READ Latency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Write Latency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Extended Mode Register 2 (EMR2) Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Extended Mode Register 3 (EMR3) Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Data Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Definition of Start and Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Acknowledge Response From Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

SPD EEPROM Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

240-pin DDR2 DIMM Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

pdf: 09005aef80ef2a81, source: 09005aef80ef1c07

HTJ36C256_512x72GLOF.fm - Rev. B 4/05 EN

Micron Technology, Inc., reserves the right to change products or specifications without notice.

2GB, 4GB (x72, ECC, DR) 240-Pin DDR2 SDRAM RDIMM

Table of Contents

Table 1:

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Table 26:

Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Key Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Part Numbers and Timing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Burst Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Commands Truth Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Absolute Maximum DC Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Recommended DC Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Input DC Logic Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Input AC Logic Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

General I

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

7 Timing Patterns – 2GB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

7 Timing Patterns – 4GB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

DDR2 I

Specifications and Conditions – 2GB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

DDR2 I

Specifications and Conditions – 4GB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

AC Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Register Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

PLL Clock Driver Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

PLL Clock Driver Timing Requirements and Switching Characteristics . . . . . . . . . . . . . . . . . . .39

EEPROM Device Select Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

EEPROM Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Serial Presence-Detect EEPROM DC Operating Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Serial Presence-Detect EEPROM AC Operating Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Serial Presence-Detect Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

pdf: 09005aef80ef2a81, source: 09005aef80ef1c07

HTJ36C256_512x72GLOT.fm - Rev. B 4/05 EN

Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT36HTJ25672PY-667XX Related Products

	MT36HTJ25672PY-667XX	MT36HTJ25672PY-53EXX	MT36HTJ25672Y-40EXX	MT36HTJ25672Y-53EXX	MT36HTJ25672PY-40EXX	MT36HTJ25672Y-667XX
Description	DDR DRAM Module, 256MX72, 0.45ns, CMOS, LEAD FREE, DIMM-240	DDR DRAM Module, 256MX72, 0.5ns, CMOS, LEAD FREE, DIMM-240	DDR DRAM Module, 256MX72, 0.6ns, CMOS, LEAD FREE, DIMM-240	DDR DRAM Module, 256MX72, 0.5ns, CMOS, LEAD FREE, DIMM-240	DDR DRAM Module, 256MX72, 0.6ns, CMOS, LEAD FREE, DIMM-240	DDR DRAM Module, 256MX72, 0.45ns, CMOS, LEAD FREE, DIMM-240
Is it lead-free?	Lead free	Lead free	Lead free	Lead free	Lead free	Lead free
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to
Parts packaging code	DIMM	DIMM	DIMM	DIMM	DIMM	DIMM
package instruction	DIMM,	DIMM,	LEAD FREE, DIMM-240	LEAD FREE, DIMM-240	LEAD FREE, DIMM-240	DIMM,
Contacts	240	240	240	240	240	240
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
access mode	DUAL BANK PAGE BURST	DUAL BANK PAGE BURST	DUAL BANK PAGE BURST	DUAL BANK PAGE BURST	DUAL BANK PAGE BURST	DUAL BANK PAGE BURST
Maximum access time	0.45 ns	0.5 ns	0.6 ns	0.5 ns	0.6 ns	0.45 ns
Other features	AUTO/SELF REFRESH	AUTO/SELF REFRESH	AUTO/SELF REFRESH	AUTO/SELF REFRESH	AUTO/SELF REFRESH	AUTO/SELF REFRESH
JESD-30 code	R-XDMA-N240	R-XDMA-N240	R-XDMA-N240	R-XDMA-N240	R-XDMA-N240	R-XDMA-N240
JESD-609 code	e4	e4	e4	e4	e4	e4
memory density	19327352832 bit	19327352832 bit	19327352832 bit	19327352832 bit	19327352832 bit	19327352832 bit
Memory IC Type	DDR DRAM MODULE	DDR DRAM MODULE	DDR DRAM MODULE	DDR DRAM MODULE	DDR DRAM MODULE	DDR DRAM MODULE
memory width	72	72	72	72	72	72
Number of functions	1	1	1	1	1	1
Number of ports	1	1	1	1	1	1
Number of terminals	240	240	240	240	240	240
word count	268435456 words	268435456 words	268435456 words	268435456 words	268435456 words	268435456 words
character code	256000000	256000000	256000000	256000000	256000000	256000000
Operating mode	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
organize	256MX72	256MX72	256MX72	256MX72	256MX72	256MX72
Package body material	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
encapsulated code	DIMM	DIMM	DIMM	DIMM	DIMM	DIMM
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY
Peak Reflow Temperature (Celsius)	260	260	260	260	260	260
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
self refresh	YES	YES	YES	YES	YES	YES
Maximum supply voltage (Vsup)	1.9 V	1.9 V	1.9 V	1.9 V	1.9 V	1.9 V
Minimum supply voltage (Vsup)	1.7 V	1.7 V	1.7 V	1.7 V	1.7 V	1.7 V
Nominal supply voltage (Vsup)	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V	1.8 V
surface mount	NO	NO	NO	NO	NO	NO
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	OTHER	OTHER	OTHER	OTHER	OTHER	OTHER
Terminal surface	Gold (Au)	Gold (Au)	Gold (Au)	Gold (Au)	Gold (Au)	Gold (Au)
Terminal form	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	30	30	30	30	30
Maker	Micron Technology	-	Micron Technology	Micron Technology	Micron Technology	Micron Technology

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