Ordering number : ENN6304
CMOS IC
LC35W256EM, ET-10W
256K (32K words × 8 bits) SRAM Control pins: OE and CE
Overview
...
Ordering number : ENN6304
CMOS IC
LC35W256EM, ET-10W
256K (32K words × 8 bits) SRAM Control pins: OE and CE
Overview
The LC35W256EM-10W and LC35W256ET-10W are asynchronous silicon-gate CMOS SRAMs with a 32768word by 8-bit structure. These are full-CMOS devices with 6
transistors per memory cell, and feature ultralowvoltage operation, a low operating current drain, and an ultralow standby current. Control inputs include OE for fast memory access and CE 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.
Package Dimensions
unit: mm 3187A-SOP28D
[LC35W256EM-10W]
28 15
0.15
1
18.0
14
Features
Supply voltage range: 2.7 to 3.6 V Access time: 100 ns (maximum) Standby current: 0.8 µA (Ta ≤ 60°C) 4.0 µA (Ta ≤ 70°C) Operating temperature: –10 to +70°C Data retention voltage: 2.0 to 3.6 V All I/O levels: CMOS compatible (0.8 VCC, 0.2 VCC) Input/output shared function pins, 3-state output pins No clock required (fully static circuits) Package 28-pin SOP (450 mil) plastic package: LC35W256EM-10W 28-pin TSOP (8 × 13.4 mm) plastic package: LC35W256ET-10W
0.4 1.27
0.1 2.3
SANYO: SOP28D
unit: mm 3221-TSOP28 (Type I)
[LC35W256ET-10W]
21 8
11.8
1.27max
22
28 1 0.55 8.1
7 0.2
0.125
0.08
SANYO: TSOP28 (Type I)
Any and all SANYO products described or contained herei...