PDF W24258 Data sheet ( Hoja de datos )

Número de pieza	W24258
Descripción	32K X 8 CMOS STATIC RAM
Fabricantes	Winbond
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No Preview Available ! 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, W24258- 70LE 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 mW (max.) − Standby: 6 µW (max.)/3V 25 µW (max.)/5V • Access time: 70 nS (max.)/5V 100 nS (max.)/3V • Single 3V/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 1 28 A12 2 27 A7 3 26 A6 4 25 A5 5 24 A4 6 A3 7 23 28-pin DIP 22 A2 8 21 A1 9 20 A0 10 19 I/O1 11 18 I/O2 12 17 I/O3 VSS 13 14 16 15 VDD WE A13 A8 A9 A11 OE A10 CS I/O8 I/O7 I/O6 I/O5 I/O4 OE 1 A11 2 A9 3 A8 4 A13 5 WE 6 VDD 7 A14 8 A12 9 A7 1 A6 0 A5 1 A4 1 A3 1 2 28-pin TSOP 28 A10 27 CS 26 I/O8 25 I/O7 24 I/O6 23 I/O5 22 I/O4 21 VSS 20 I/O3 19 I/O2 18 I/O1 17 A0 16 A1 15 A2 CLK GEN. PRECHARGE CKT. A12 A14 R A2 O W CORE CELL ARRAY A3 A4 D E 512 ROWS A5 C O 64 X 8 COLUMNS D A6 E R A7 A13 I/O1 DATA I/O CKT. I/O8 CNTRL. COLUMN DECODER CLK GEN. A11 A10 A1 A0 A8 A9 WE CS OE PIN DESCRIPTION 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 Ground Publication Release Date: November 1998 - 1 - Revision A8 1 page TIMING WAVEFORMS Read Cycle 1 (Address Controlled) Address DOUT TRC TAA TOH Read Cycle 2 (Chip Select Controlled) CS DOUT TCLZ TACS Read Cycle 3 (Output Enable Controlled) Address OE CS D OUT T RC TAA T AOE TOLZ T ACS TCLZ W24258 TOH TCHZ TOH T OHZ T CHZ Publication Release Date: November 1998 - 5 - Revision A8 5 Page W24258 VERSION HISTORY VERSION A4 A5 A6 A7 DATE Mar. 1997 Jan. 1998 Feb. 1998 Apr. 1998 A8 Nov. 1998 PAGE DESCRIPTION 8 Add bonding PAD diagram 8 Modify bonding PAD diagram 1, 2, 4, 7 Delete operating temperature (SL = 0 to 70 °C) 3 Add standby power supply current (ISB1) typical parameter when operation temperature TA = 25° C 1, 3, 7, 10 Deduct reverse type one TSOP package Headquarters Winbond Electronics (H.K.) Ltd. No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5796096 Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064 http://www.winbond.com.tw/ Voice & Fax-on-demand: 886-2-27197006 Taipei Office 11F, No. 115, Sec. 3, Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-27190505 FAX: 886-2-27197502 Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2727 N. First Street, San Jose, CA 95134, U.S.A. TEL: 408-9436666 FAX: 408-5441798 Note: All data and specifications are subject to change without notice. - 11 - Publication Release Date: November 1998 Revision A8 11 Page

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