M68AF031A

` SUPPLY VOLTAGE: 4.5 to 5.5V
` 32K x 8 bits SRAM with OUTPUT ENABLE
` EQUAL CYCLE and ACCESS TIME: 55, 70ns
` LOW STANDBY CURRENT
` LOW VCC DATA RETENTION: 2V
` TRI-STATE COMMON I/O
` AUTOMATIC POWER DOWN
` PACKAGES
SO28, PDIP28, TSOP28 Standard and Reverse Pinout.
TSOP28 Standard Available in Lead-Free Version

Note: 1. One output at a time, not to exceed 1 second duration.
2. Up to a maximum operating VCC of 6.0V only.
3. Compliant with the JEDEC Std J-STD-020B (for small body, Sn-Pb or Pb assembly), the ST ECOPACK^® 7191395 specification, and the European directive on Restrictions on Hazardous Substances (RoHS) 2002/95/EU.

The M68AF031A is a 256 Kbit (262,144 bit) CMOS SRAM, organized as 32,768 bytes. The device features fully static operation requiring no external clocks or timing strobes, with equal address access and cycle times. It requires a single 4.5 to 5.5V supply. This device has an automatic powerdown feature, reducing the power consumption by
over 99% when deselected.

The M68AF031A is available in SO28 (28-lead Small Outline), PDIP28 (28-pin Plastic Dual-In- Line) and TSOP28 (28-lead Thin Small Outline, Standard and Reverse Pinout) packages.

In addition to the standard version, the TSOP28 Standard package is also available in Lead-free version (standard and Tape & Reel packing), in compliance with JEDEC Std J-STD-020B, the STECOPACK 7191395 Specification, and the RoHS (Restriction of Hazardous Substances) directive. It is also compliant with Lead-free soldering processes.