AT25640A-10PI2.7 ATMEL Corporation, AT25640A-10PI2.7 Datasheet
AT25640A-10PI2.7
Manufacturer Part Number
AT25640A-10PI2.7
Description
Manufacturer
ATMEL Corporation
Specifications of AT25640A-10PI2.7
Case
DIP/8
Date_code
03+
Features
•
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Description
The AT25080A/160A/320A/640A provides 8192/16384/32768/65536 bits of serial
electrically-erasable programmable read-only memory (EEPROM) organized as
1024/2048/4096/8192 words of 8 bits each. The device is optimized for use in many
industrial and commercial applications where low-power and low-voltage operation
are essential. The AT25080A/160A/320A/640A is available in space-saving 8-lead
PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 8-lead Mini-MAP (MLP 2x3) and 8-lead
TSSOP packages.
The AT25080A/160A/320A/640A is enabled through the Chip Select pin (CS) and
accessed via a three-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.
Table 1. Pin Configuration
Pin Name
CS
SCK
SI
SO
GND
VCC
WP
HOLD
NC
DC
Serial Peripheral Interface (SPI) Compatible
Supports SPI Modes 0 (0,0) and 3 (1,1)
Low-voltage and Standard-voltage Operation
20 MHz Clock Rate (5V)
32-byte Page Mode
Block Write Protection
Write Protect (WP) Pin and Write Disable Instructions for Both Hardware and Software
Data Protection
Self-timed Write Cycle (5 ms max)
High Reliability
Automotive Devices Available
8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Mini-MAP (MLP 2x3), and 8-lead TSSOP
Packages
Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers
– Datasheet Describes Mode 0 Operation
– 2.7 (V
– 1.8 (V
– Protect 1/4, 1/2, or Entire Array
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
CC
CC
= 2.7V to 5.5V)
= 1.8V to 5.5V)
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
No Connect
Don’t Connect
GND
GND
WP
WP
CS
SO
CS
SO
8-lead TSSOP
8-lead PDIP
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
5
HOLD
VCC
SCK
SI
VCC
HOLD
SCK
SI
VCC
HOLD
SCK
SI
8-lead MAP
8
7
6
5
Bottom View
GND
WP
8-lead Mini-MAP (MLP 2x3)
SO
CS
HOLD
VCC
1
2
3
4
SCK
SI
CS
SO
WP
GND
8-lead SOIC
1
2
3
4
8
7
6
5
Bottom View
8
7
6
5
1
2
3
4
CS
SO
WP
GND
VCC
HOLD
SCK
SI
SPI Serial
EEPROMs
8K (1024 x 8)
16K (2048 x 8)
32K (4096 x 8)
64K (8192 x 8)
AT25080A
AT25160A
AT25320A
AT25640A
3347J–SEEPR–10/05
1
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