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AT25080B Datasheet, PDF (1/22 Pages) ATMEL Corporation – SPI Serial EEPROMs 8K (1024 x 8) 16K (2048 x 8) | |||
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Features
⢠Serial Peripheral Interface (SPI) Compatible
⢠Supports SPI Modes 0 (0,0) and 3 (1,1)
â Datasheet Describes Mode 0 Operation
⢠Low-voltage and Standard-voltage Operation
â 1.8 (VCC = 1.8V to 5.5V)
⢠20 MHz Clock Rate (5V)
⢠32-byte Page Mode
⢠Block Write Protection
â 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 (5 ms max)
⢠High Reliability
â Endurance: One Million Write Cycles
â Data Retention: 100 Years
⢠8-lead JEDEC PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 8-lead
TSSOP and 8-ball dBGA2 Packages
⢠Die Sales: Wafer Form, Tape and Reel, and Bumped Wafers
Description
The AT25080B/160B provides 8192/16384 bits of serial electrically-erasable program-
mable read-only memory (EEPROM) organized as 1024/2048 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 AT25080B/160B is available
in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP
2x3) and 8-lead TSSOP packages.
The AT25080B/160B 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 sepa-
rate erase cycle is required before write.
Table 0-1. Pin Configuration
Pin Name
CS
Function
Chip Select
8-lead PDIP
SCK
SI
SO
GND
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
CS 1
SO 2
WP 3
GND 4
8 VCC
7 HOLD
6 SCK
5 SI
VCC
Power Supply
WP
HOLD
Write Protect
Suspends Serial Input
8-lead TSSOP
CS 1
SO 2
WP 3
GND 4
8 VCC
7 HOLD
6 SCK
5 SI
SPI Serial
EEPROMs
8K (1024 x 8)
16K (2048 x 8)
AT25080B
AT25160B
Preliminary
5228BâSEEPRâ7/08
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