LC35256FT SMD

Overview
The LC35256FM and LC35256FT are asynchronous
silicon-gate CMOS SRAMs with a 32K-word by 8-bit
structure. These are full-CMOS devices with 6 transistors
per memory cell, and feature low-voltage operation, a low
operating current drain, and an ultralow standby current.
Control inputs include OE for fast memory access and CE
(chip enable) for power saving and device selection. This
makes these devices optimal for systems that require low
power or battery backup, and makes memory expansion
easy. The ultralow standby current allows these devices to
be used with capacitor backup as well.
Features
? Supply voltage range: 4.5 to 5.5 V
? Access time at 5 V operation:
LC35256FM, FT-55U: 55 ns (maximum)
LC35256FM, FT-70U: 70 ns (maximum)
? Standby current: 3.0 ?A (Ta ? 70?C)
5.0 ?A (Ta ? 85?C)
? Operating temperature: ?40 to +85?C
? Data retention voltage: 2.0 to 5.5 V
? All I/O levels: TTL compatible
? Input/output shared function pins, 3-state output pins
? No clock required
? Package
28-pin SOP (450 mil) plastic package: LC35256FM
28-pin TSOP (8 ? 13.4 mm) plastic package: LC35256FT