32K x8 CMOS STATIC RAM
W24258/LL
GENERAL DESCRIPTION
32K × 8 CMOS STATIC RAM
The W24258/LL is a normal speed, very low power CMOS static RAM...
Description
W24258/LL
GENERAL DESCRIPTION
32K × 8 CMOS STATIC RAM
The W24258/LL is a normal speed, very low power CMOS static RAM organized as 32768 × 8 bits that operates on a single 5-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
Low power consumption: − Active: 350 mW (max.) − Standby: 25 µW (max.)
Access time: 55/70 nS (max.) Single 5V power supply Fully static operation All inputs and outputs directly TTL compatible
Three-state outputs
Battery back-up operation capability
Data retention voltage: 2V (min.)
Packaged in 28-pin 600 mil DIP, 330 mil SOP and standard type one TSOP (8 mm × 13.4 mm)
PIN CONFIGURATIONS
BLOCK DIAGRAM
A14 A12 A7 A6 A5 A4
A3 A2 A1 A0 I/O1 I/O2 I/O3 VSS
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28-pin DIP
28 27 26 25 24 23 22 21 20 19 18 17 16 15
VDD WE A13 A8 A9 A11 OE A10 CS I/O8 I/O7 I/O6 I/O5 I/O4
CLK GEN.
PRECHARGE CKT.
A12
A14 R
A2 O W
A3 CORE CELL ARRAY D
...
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