W24258 Datasheet | Winbond

W24258 32K × 8 CMOS STATIC RAM GENERAL DESCRIPTION The W24258 is a normal speed, very low power CMOS static RAM organized as 32768 × 8 bits that operates on a wide voltage range from 2.7V to 5.5V power supply. The W24258 family, W2425870LE and W24258-70LI, can meet requirement of various operating temperature. This device is manufactured using Winbond's high performance CMOS technology. Features - - - - Low power consumption: - Active: 350 m W (max.) - Standby: 6 µW (max.)/3V 25 µW (max.)/5V Access time: 70 n S (max.)/5V 100 n S (max.)/3V Single 3V/5V power supply Fully static operation - - - - - All inputs and outputs directly TTL patible 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 CLK GEN. A12 A14 A2 R O W D E C O D E R PRECHARGE CKT. 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 A3 A4 A5 A6 A7 A13 I/O1 I/O8 CORE CELL ARRAY 512 ROWS 64 X 8 COLUMNS DATA CNTRL. CLK GEN. I/O CKT. COLUMN DECODER WE CS OE A11 A10 A1 A0 A8 A9 PIN DESCRIPTION OE A11 A9 A8 A13 WE VDD A14 A12 A7 A6 A5 A4 A3 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 28 27 26 25 24 23 22 21 20 19 18 17 16 15 A10 CS I/O8 I/O7 I/O6 I/O5 I/O4 VSS I/O3 I/O2 I/O1 A0 A1 A2 28-pin TSOP SYMBOL A0- A14 I/O1- I/O8 CS WE OE VDD VSS DESCRIPTION Address Inputs Data Inputs/Outputs Chip Select Input Write Enable Input Output Enable Input Power Supply...