AT25320B-MA9MGV-T datasheet, PDF

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AT25320B-MA9MGV-T: DescriptionEEPROM, 4KX8, Serial, CMOS, PDSO8, UDFN-8; Categorystorage storage; File Size885KB，25 Pages; ManufacturerAtmel (Microchip)

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AT25320B-MA9MGV-T Overview

EEPROM, 4KX8, Serial, CMOS, PDSO8, UDFN-8

AT25320B-MA9MGV-T Parametric

Parameter Name	Attribute value
Objectid	8204024054
package instruction	HVSON,
Reach Compliance Code	unknown
ECCN code	EAR99
Maximum clock frequency (fCLK)	5 MHz
JESD-30 code	R-PDSO-N8
length	3 mm
memory density	32768 bit
Memory IC Type	EEPROM
memory width	8
Number of functions	1
Number of terminals	8
word count	4096 words
character code	4000
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	4KX8
Package body material	PLASTIC/EPOXY
encapsulated code	HVSON
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Parallel/Serial	SERIAL
Filter level	AEC-Q100
Maximum seat height	0.6 mm
Serial bus type	SPI
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	1.7 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	DUAL
width	2 mm
Maximum write cycle time (tWC)	5 ms

AT25320B-MA9MGV-T Preview

AT25080B, AT25160B, AT25320B, and AT25640B

SPI Automotive Temperature Serial EEPROMs

8K (1,024 x 8), 16K (2,048 x 8), 32K (4,096 x 8), 64K (8,192 x 8)

DATASHEET

Features



Serial Peripheral Interface (SPI) Compatible

Supports SPI Modes 0 (0,0) and 3 (1,1)

Datasheet Describes Mode 0 Operation

Grade 1, V

= 2.5V to 5.5V

Grade 2

(1)

and 3, V

= 1.7V to 5.5V

Grade 1 Temperature Range: -40C to 125C

Grade 2 Temperature Range

(1)

: -40C to 105C

Grade 3 Temperature Range: -40C to 85C

Low-voltage, Medium-voltage and High-voltage Operation



Extended Temperature Range (Grade 1, 2

(1)

, and 3 as defined in AEC-Q100)



5MHz Clock Rate

32-byte Page Mode

Block Write Protection

Protect 1/4, 1/2, or Entire Array

Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and

Software Data Protection

Self-timed Write Cycle (5ms max)

High Reliability

Endurance: 1,000,000 Write Cycles

Data Retention: 100 Years

Contact Sales for Grade 2 Availability



8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN Packages

Note:

Description

The Atmel

AT25080B/160B/320B/640B provides 8,192/16,384/32,768/65,536

bits of Serial Electrically-Erasable Programmable Read-Only Memory (EEPROM)

organized as 1,024/2,048/4,096/8,192 words of 8 bits each. The device is

optimized for use in many automotive applications where low-power and

low-voltage operation are essential. AT25080B/160B/320B/640B is available in

space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, and 8-pad UDFN packages.

AT25080B/160B/320B/640B is enabled through the Chip Select pin (CS) and

accessed via a 3-wire interface consisting of Serial Data Input (SI), Serial Data

Output (SO), and Serial Clock (SCK). All programming cycles are completely

self-timed, and no separate erase cycle is required before write.

Block Write protection is enabled by programming the status register with one of

four blocks of write protection. Separate program enable and program disable

instructions are provided for additional data protection. Hardware data protection

is provided via the WP pin to protect against inadvertent write attempts to the

status register. The HOLD pin may be used to suspend any serial communication

without resetting the serial sequence.

Atmel-8803E-SEEPROM-AT25080B-160B-320B-640B-Auto-Datasheet_092016

Ta b le of C o nte nts

Pin Descriptions and Pinouts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Absolute Maximum Ratings*

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Block Diagram

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Serial Interface Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Memory Organization

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.1

5.2

5.3

Pin Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Functional Description

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Timing Diagrams

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7.1

Power Recommendation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Ordering Information

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

8.1

8.2

Ordering Code Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ordering Code Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.1

Automotive Grade 1, V

= 2.5V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.2

Automotive Grade 3, V

= 1.7V to 5.5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.3

Legacy Ordering Code Information (Not Recommended for New Designs, NRND) . . . . .

Part Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.3

Packaging Information

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

9.1

9.2

9.3

8S1 — 8-lead JEDEC SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

8X — 8-lead TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

8MA2 — 8-pad UDFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

10. Revision History

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

AT25080B/160B/320B/640B Automotive [DATASHEET]

Atmel-8803E-SEEPROM-AT25080B-160B-320B-640B-Auto-Datasheet_092016

Pin Descriptions and Pinouts

Table 1-1.

Pin Name

SCK

GND

HOLD

Pin Configurations

Function

Chip Select

Serial Data Clock

Serial Data Input

Serial Data Output

Ground

Power Supply

Write Protect

Suspends Serial Input

Note:

Drawings are not to scale.

GND

8-lead SOIC

(Top View)

8-lead TSSOP

(Top View)

HOLD

SCK

GND

HOLD

SCK

8-pad UDFN

(Top View)

HOLD

SCK

Absolute Maximum Ratings*

Operating Temperature . . . . . . . . . . .-40C to +125C

Storage Temperature . . . . . . . . . . . . .-65C to +150C

Voltage on any pin

with respect to ground . . . . . . . . . . . . . -1.0V to +7.0V

Maximum Operating Voltage . . . . . . . . . . . . . . . 6.25V

DC Output Current . . . . . . . . . . . . . . . . . . . . . . .5.0mA

*Notice: Stresses beyond those listed under “Absolute

Maximum Ratings” may cause permanent damage

to the device. This is a stress rating only and

functional operation of the device at these or any

other conditions beyond those indicated in the

operational sections of this specification is not

implied. Exposure to absolute maximum rating

conditions for extended periods may affect device

reliability.

AT25080B/160B/320B/640B Automotive [DATASHEET]

Atmel-8803E-SEEPROM-AT25080B-160B-320B-640B-Auto-Datasheet_092016

Block Diagram

Figure 3-1.

Block Diagram

GND

Status

Memory Array

1,024/2,048/

4,096/8,192 x 8

Address

Decoder

Data

Mode

Decode

Logic

Output

Buffer

SCK

Clock

Generator

HOLD

AT25080B/160B/320B/640B Automotive [DATASHEET]

Atmel-8803E-SEEPROM-AT25080B-160B-320B-640B-Auto-Datasheet_092016

Serial Interface Description

Master:

The device that generates the serial clock.

Slave:

Because the Serial Clock pin (SCK) is always an input, AT25080B/160B/320B/640B always operates as

a slave.

Transmitter/Receiver:

AT25080B/160B/320B/640B has separate pins designated for data transmission (SO)

and reception (SI).

MSB:

The Most Significant Bit (MSB) is the first bit transmitted and received.

Serial Opcode:

After the device is selected with CS going low, the first byte will be received. This byte contains

the opcode that defines the operations to be performed.

Invalid Opcode:

If an invalid opcode is received, no data will be shifted into AT25080B/160B/320B/640B, and

the Serial Output pin (SO) will remain in a high impedance state until the falling edge of CS is detected again.

This will reinitialize the serial communication.

Chip Select:

AT25080B/160B/320B/640B is selected when the CS pin is low. When the device is not selected,

data will not be accepted via the SI pin, and the Serial Output pin (SO) will remain in a high impedance state.

Hold:

The HOLD pin is used in conjunction with the CS pin to select AT25080B/160B/320B/640B. When the

device is selected and a serial sequence is underway, HOLD can be used to pause the serial communication

with the master device without resetting the serial sequence. To pause, the HOLD pin must be brought low while

the SCK pin is low. To resume serial communication, the HOLD pin is brought high while the SCK pin is low

(SCK may still toggle during HOLD). Inputs to the SI pin will be ignored while the SO pin is in the high

impedance state.

Write Protect:

The Write Protect pin (WP) will allow normal read/write operations when held high. When the

WP pin is brought low and WPEN bit is one, all write operations to the status register are inhibited. WP going

low while CS is still low will interrupt a write to the status register. If the internal write cycle has already been

initiated, WP going low will have no effect on any write operation to the status register. The WP pin function is

blocked when the WPEN bit in the status register is zero. This will allow the user to install

AT25080B/160B/320B/640B in a system with the WP pin tied to ground and still be able to write to the status

AT25080B/160B/320B/640B Automotive [DATASHEET]

Atmel-8803E-SEEPROM-AT25080B-160B-320B-640B-Auto-Datasheet_092016

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