24AA1025 128kx8 Microchip Serial EEPROM

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The 24AA1025 is a 128K x 8 (1024Kbit) Serial Electrically Erasable PROM, capable of operation across a broad voltage range (1.7V to 5.5V). It has been developed for advanced, low-power applications such as personal communications or data acquisition. This device has both bytes write and page write capability of up to 128 bytes of data. This device is capable of both random and sequential reads. Reads may be sequential within address boundaries 0000h to FFFFh and 10000h to 1FFFFh. Functional address lines allow up to four devices on the same data bus. This allows for up to 4 Mbits total system EEPROM memory. This device is available in the standard 8-pin PDIP and SOIJ packages.

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24AA1025 Pinout

24AA1025 Pin Configuration

Pin No	Pin Name	Description
1	A0	User Configurable Chip Select
2	A1	User Configurable Chip Select
3	A2	User Configurable Chip Select
4	VSS	Ground Pin
5	SDA	Serial Data Pin
6	SCL	Serial Clock Pin
7	WP	Write Protect Pin
8	VCC	Power Supply Pin

24AA1025 Key Feature

Low-Power CMOS Technology:
- Read current 450 μA, maximum
- Standby current 5 μA, maximum
2-Wire Serial Interface, I2C™ Compatible
Cascadable up to Four Devices
Schmitt Trigger Inputs for Noise Suppression
Output Slope Control to Eliminate Ground Bounce
100 kHz and 400 kHz Clock Compatibility
1 MHz Clock for FC Versions
Page Write Time 3 ms, typical
Self-Timed Erase/Write Cycle
128-Byte Page Write Buffer
Hardware Write-Protect
ESD Protection >400V
More than 1 Million Erase/Write Cycles