AT25080B_10 Datasheet, PDF (1/26 Pages) ATMEL Corporation – serial electrically-erasable programmable read-only memory

Features
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
– Datasheet Describes Mode 0 Operation
• Low-voltage and Standard-voltage Operation
– 1.8 (V_CC = 1.8V to 5.5V)
• 20 MHz Clock Rate (5V)
• 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 (5 ms max)
• High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
• Green (Pb/Halide-free/RoHS Compliant) Packaging Options
• 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 JEDEC SOIC, 8-lead UDFN, 8-lead TSSOP, 8-lead XDFN,
and 8-ball VFBGA 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 Name
CS
SCK
SI
SO
GND
VCC
WP
HOLD
Pin Configuration
Function
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
Ground
Power Supply
Write Protect
Suspends Serial Input
8-lead SOIC
CS 1
SO 2
WP 3
GND 4
8
VCC
7 HOLD
6 SCK
5 SI
8-lead TSSOP
CS 1
SO 2
WP 3
GND 4
8 VCC
7 HOLD
6 SCK
5 SI
8-lead UDFN
8-lead XDFN
VCC 8
HOLD 7
SCK 6
SI 5
1 CS
2 SO
3 WP
4 GND
VCC 8
HOLD 7
SCK 6
SI 5
1 CS
2 SO
3 WP
4 GND
Bottom View
Bottom View
8-ball VFBGA
VCC 8
HOLD 7
SCK 6
SI 5
1 CS
2 SO
3 WP
4 GND
Bottom View
SPI Serial
EEPROMs
8K (1024 x 8)
16K (2048 x 8)
AT25080B
AT25160B
5228D–SEEPR–4/10