Description
The Atmel® AT25M02-SSHM-B provides 2,097,152 bits of Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 262,144 words of 8 bits each. The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operation is essential. The device is available in space saving 8-lead JEDEC SOIC and 8-ball Thin WLCSP packages. In addition, the device operates from 1.7V to 5.5V.
The AT25M02-SSHM-B 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 a separate erase cycle is not required before writing to the device.
Features
Low-voltage and Standard-voltage Operation Available
̶ 1.7V (VCC = 1.7V to 5.5V)
̶ 2.5V (VCC = 2.5V to 5.5V)
Serial Peripheral Interface (SPI) Compatible Interface
Supports SPI Modes 0 (0,0) and 3 (1,1)
High Speed Operation
̶ 5MHz Clock Rate from 1.7V to 5.5V
256-byte Page Write Mode Support
̶ Partial Page Writes Allowed
̶ Byte Write Operation Supported
Self-timed Write Cycle
̶ All Write Operations Complete Within 10ms Max
Block Write Protection
̶ Ability to Protect the Upper Quarter, Upper Half, or the Entire Memory Array
Multiple Write Protection Methods
̶ Write Protect (WP) Pin and Write Disable instructions for Both Hardware and Software Data Protection
High Reliability
̶ Endurance: 1,000,000 Write Cycles
̶ Data Retention: 40 Years
Green Package Options (Lead-free/Halide-free/RoHS Compliant)
̶ 8-lead JEDEC SOIC and 8-ball Thin WLCSP
Die Sale Options
̶ Wafer form, Waffle Pack, and Bumped Die Available
Feature
- 256K x 8-bit (2 Mbit)
- Serial Peripheral Interface (SPI) Compatible
- Supports SPI modes 0 and 3
- Up to 5 MHz clock frequency
- Self-Timed Erase and Write Cycles (10 ms max.)
- Low Power Consumption
- Read current: 1 mA (Max) at 5 MHz
- Write current: 2 mA (Max) at 1.8V
- Standby current: 1μA (Max) at 1.8V
- Block Write Protection: Protect 1/4, 1/2 or Entire Array
- More than 1 million erase/write cycles
- Data retention 100 years
- Temperature Ranges Available
- Industrial: -40°C to 85°C
- Factory Programming Available
- Available in standard package 8-lead SOIC, and advanced packages including 8-ball wLCSP and Die in wafer form
(Picture:Pinout / Diagram)
