DESCRIPTION
The IS25C32A and IS25C64A are electrically erasable PROM devices that use the Serial Peripheral Interface (SPI) for communications. The IS25C32A is 32Kbit (4096 x 8) and the IS25C64A is 64Kbit (8192 x 8). The IS25C32A/64A EEPROMs are offered in a wide operating voltage range of 1.8V to 5.5V to be compatible with most application voltages. ISSI designed the IS25C32A/64A to be an efficient SPI EEPROM solution. The devices are packaged in 8-pin PDIP, 8-pin SOIC, and 8-pin TSSOP.

FEATURES
• Serial Peripheral Interface (SPI) Compatible
    — Supports SPI Modes 0 (0,0) and 3 (1,1)
• Wide-voltage Operation
    — Vcc = 1.8V to 5.5V
• Low power CMOS
    — Active current less than 3.0 mA (2.5V)
    — Standby current less than 2.0 µA (2.5V)
• Block Write Protection
    — Protect 1/4, 1/2, or Entire Array
• 32 byte page write mode
    — Partial page writes allowed
• 10 MHz Clock Rate (5V)
• Self timed write cycles (5 ms Typical)
• High-reliability
    — Endurance: 1 million cycles per byte
    — Data retention: 100 years
• Industrial and Automotive temperature ranges
• 8-pin PDIP, 8-pin SOIC, and 8-pin TSSOP Packages available
• Lead-free available