MT48LC8M16A2TG-6AL:GAIT datasheet, PDF

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MT48LC8M16A2TG-6AL:GAIT: DescriptionSynchronous DRAM,; Categorystorage storage; File Size4MB，85 Pages; ManufacturerMicron Technology; Websitehttp://www.mdtic.com.tw/

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MT48LC8M16A2TG-6AL:GAIT Overview

Synchronous DRAM,

MT48LC8M16A2TG-6AL:GAIT Parametric

Parameter Name	Attribute value
Maker	Micron Technology
package instruction	,
Reach Compliance Code	unknown
Memory IC Type	SYNCHRONOUS DRAM

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Preliminary

‡

128Mb: x4, x8, x16 Automotive SDRAM

Features

Automotive SDR SDRAM

MT48LC32M4A2 – 8 Meg x 4 x 4 Banks

MT48LC16M8A2 – 4 Meg x 8 x 4 Banks

MT48LC8M16A2 – 2 Meg x 16 x 4 Banks

Features

• PC100- and PC133-compliant

• Fully synchronous; all signals registered on positive

edge of system clock

• Internal, pipelined operation; column address can

be changed every clock cycle

• Internal banks for hiding row access/precharge

• Programmable burst lengths (BL): 1, 2, 4, 8, or full

page

• Auto precharge, includes concurrent auto precharge

and auto refresh modes

• Auto refresh mode; standard and low power

– 64ms, 4096-cycle (industrial)

– 16ms, 4096-cycle refresh (automotive)

• LVTTL-compatible inputs and outputs

• Single 3.3V ±0.3V power supply

• AEC-Q100

• PPAP submission

• 8D response time

Options

•

Options

• Configurations

– 32 Meg x 4 (8 Meg x 4 x 4 banks)

– 16 Meg x 8 (4 Meg x 8 x 4 banks)

– 8 Meg x 16 (2 Meg x 16 x 4 banks)

• Write recovery (

WR)

Table 1: Key Timing Parameters

CL = CAS (READ) latency

Speed Grade

-6A

-75

-7E

Clock

Frequency (MHz)

167

133

Marking

32M4

16M8

8M16

–

WR = 2 CLK

Plastic package – OCPL

– 54-pin TSOP II (400 mil)

– 54-pin TSOP II (400 mil) Pb-free

– 60-ball FBGA (8mm x 16mm)

– 60-ball FBGA (8mm x 16mm) Pb-free

– 54-ball VFBGA (x16 only) (8mm x

8mm)

– 54-ball VFBGA (x16 only) (8mm x

8mm) Pb-free

Timing – cycle time

– 7.5ns @ CL = 3 (PC133)

– 7.5ns @ CL = 2 (PC133)

– 6.0ns @ CL = 3 (x16 only)

Self refresh

– Standard

– Low power

Revision

Operating temperature range

– Industrial (–40˚C to +85˚C)

– Automotive (–40˚C to +105˚C)

1. Contact Micron for availability.

2. Off-center parting line.

3. Only available on Revision G.

Marking

-75

-7E

-6A

None

:G/:L

AIT

AAT

Notes:

Target

RCD-

RP-CL

3-3-3

2-2-2

RCD

(ns)

CL (ns)

PDF: 09005aef84baf515

128mb_x4x8x16_ait-aat_sdram.pdf - Rev. A 4/12 EN

‡Products and specifications discussed herein are for evaluation and reference purposes only and are subject to change by

Micron without notice. Products are only warranted by Micron to meet Micron’s production data sheet specifications.

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

Preliminary

128Mb: x4, x8, x16 Automotive SDRAM

Features

Contents

General Description ......................................................................................................................................... 7

Automotive Temperature .............................................................................................................................. 7

Functional Block Diagrams ............................................................................................................................... 8

Pin and Ball Assignments and Descriptions ..................................................................................................... 11

Package Dimensions ....................................................................................................................................... 15

Temperature and Thermal Impedance ............................................................................................................ 18

Electrical Specifications .................................................................................................................................. 22

Electrical Specifications – I

Parameters ........................................................................................................ 24

Electrical Specifications – AC Operating Conditions ......................................................................................... 26

Functional Description ................................................................................................................................... 29

Commands .................................................................................................................................................... 30

COMMAND INHIBIT .................................................................................................................................. 30

NO OPERATION (NOP) ............................................................................................................................... 31

LOAD MODE REGISTER (LMR) ................................................................................................................... 31

ACTIVE ...................................................................................................................................................... 31

READ ......................................................................................................................................................... 32

WRITE ....................................................................................................................................................... 33

PRECHARGE .............................................................................................................................................. 34

BURST TERMINATE ................................................................................................................................... 34

AUTO REFRESH ......................................................................................................................................... 35

SELF REFRESH ........................................................................................................................................... 35

Truth Tables ................................................................................................................................................... 36

Initialization .................................................................................................................................................. 41

Mode Register ................................................................................................................................................ 43

Burst Length .............................................................................................................................................. 45

Burst Type .................................................................................................................................................. 45

CAS Latency ............................................................................................................................................... 47

Operating Mode ......................................................................................................................................... 47

Write Burst Mode ....................................................................................................................................... 47

Bank/Row Activation ...................................................................................................................................... 48

READ Operation ............................................................................................................................................. 49

WRITE Operation ........................................................................................................................................... 58

Burst Read/Single Write .............................................................................................................................. 65

PRECHARGE Operation .................................................................................................................................. 66

Auto Precharge ........................................................................................................................................... 66

AUTO REFRESH Operation ............................................................................................................................. 78

SELF REFRESH Operation ............................................................................................................................... 80

Power-Down .................................................................................................................................................. 82

Clock Suspend ............................................................................................................................................... 83

PDF: 09005aef84baf515

128mb_x4x8x16_ait-aat_sdram.pdf - Rev. A 4/12 EN

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

Preliminary

128Mb: x4, x8, x16 Automotive SDRAM

Features

List of Figures

Figure 1: 32 Meg x 4 Functional Block Diagram ................................................................................................. 8

Figure 2: 16 Meg x 8 Functional Block Diagram ................................................................................................. 9

Figure 3: 8 Meg x 16 Functional Block Diagram ............................................................................................... 10

Figure 4: 54-Pin TSOP (Top View) .................................................................................................................. 11

Figure 5: 60-Ball FBGA (TopView) .................................................................................................................. 12

Figure 6: 54-Ball VFBGA (Top View) ............................................................................................................... 13

Figure 7: 54-Pin Plastic TSOP (400 mil) ........................................................................................................... 15

Figure 8: 60-Ball FBGA (x8 Device), 8mm x 16mm – Package Code FB/BB ........................................................ 16

Figure 9: 54-Ball VFBGA (x16 Device), 8mm x 8mm – Package Code F4/B4 ....................................................... 17

Figure 10: Example: Temperature Test Point Location, 54-Pin TSOP (Top View) ............................................... 20

Figure 11: Example: Temperature Test Point Location, 54-Ball VFBGA (Top View) ............................................ 21

Figure 12: Example: Temperature Test Point Location, 60-Ball FBGA (Top View) .............................................. 21

Figure 13: ACTIVE Command ........................................................................................................................ 31

Figure 14: READ Command ........................................................................................................................... 32

Figure 15: WRITE Command ......................................................................................................................... 33

Figure 16: PRECHARGE Command ................................................................................................................ 34

Figure 17: Initialize and Load Mode Register .................................................................................................. 42

Figure 18: Mode Register Definition ............................................................................................................... 44

Figure 19: CAS Latency .................................................................................................................................. 47

Figure 20: Example: Meeting

RCD (MIN) When 2 <

RCD (MIN)/

CK < 3 .......................................................... 48

Figure 21: Consecutive READ Bursts .............................................................................................................. 50

Figure 22: Random READ Accesses ................................................................................................................ 51

Figure 23: READ-to-WRITE ............................................................................................................................ 52

Figure 24: READ-to-WRITE With Extra Clock Cycle ......................................................................................... 53

Figure 25: READ-to-PRECHARGE .................................................................................................................. 53

Figure 26: Terminating a READ Burst ............................................................................................................. 54

Figure 27: Alternating Bank Read Accesses ..................................................................................................... 55

Figure 28: READ Continuous Page Burst ......................................................................................................... 56

Figure 29: READ – DQM Operation ................................................................................................................ 57

Figure 30: WRITE Burst ................................................................................................................................. 58

Figure 31: WRITE-to-WRITE .......................................................................................................................... 59

Figure 32: Random WRITE Cycles .................................................................................................................. 60

Figure 33: WRITE-to-READ ............................................................................................................................ 60

Figure 34: WRITE-to-PRECHARGE ................................................................................................................. 61

Figure 35: Terminating a WRITE Burst ............................................................................................................ 62

Figure 36: Alternating Bank Write Accesses ..................................................................................................... 63

Figure 37: WRITE – Continuous Page Burst ..................................................................................................... 64

Figure 38: WRITE – DQM Operation ............................................................................................................... 65

Figure 39: READ With Auto Precharge Interrupted by a READ ......................................................................... 67

Figure 40: READ With Auto Precharge Interrupted by a WRITE ........................................................................ 68

Figure 41: READ With Auto Precharge ............................................................................................................ 69

Figure 42: READ Without Auto Precharge ....................................................................................................... 70

Figure 43: Single READ With Auto Precharge .................................................................................................. 71

Figure 44: Single READ Without Auto Precharge ............................................................................................. 72

Figure 45: WRITE With Auto Precharge Interrupted by a READ ........................................................................ 73

Figure 46: WRITE With Auto Precharge Interrupted by a WRITE ...................................................................... 73

Figure 47: WRITE With Auto Precharge ........................................................................................................... 74

Figure 48: WRITE Without Auto Precharge ..................................................................................................... 75

Figure 49: Single WRITE With Auto Precharge ................................................................................................. 76

Figure 50: Single WRITE Without Auto Precharge ............................................................................................ 77

PDF: 09005aef84baf515

128mb_x4x8x16_ait-aat_sdram.pdf - Rev. A 4/12 EN

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

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