W24258S-70LL

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 ...