W25P240A-6 WINBOND [Winbond], W25P240A-6 Datasheet

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W25P240A-6

Manufacturer Part Number
W25P240A-6
Description
64K X 64 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM
Manufacturer
WINBOND [Winbond]
Datasheet
GENERAL DESCRIPTION
The W25P240A is a high-speed, low-power, synchronous-burst pipelined CMOS static RAM
organized as 65,536
address counter supports Pentium burst mode.
FEATURES
BLOCK DIAGRAM
Synchronous operation
Support 66/75 MHz bus speed
Single +3.3V power supply
Individual byte write capability
3.3V LVTTL compatible I/O
64K
64 bits that operates on a single 3.3-volt power supply. A built-in two-bit burst
BW(8:1)
A(15:0)
ADSC
ADSP
BWE
ADV
CLK
GW
OE
CE
64 BURST PIPELINED HIGH-SPEED
REGISTER
CONTROL
INPUT
LOGIC
- 1 -
REGISTER
Clock-controlled and registered input
Asynchronous output enable
Internal burst counter supports Intel burst mode
Packaged in 100-pin QFP
DATA I/O
64K X 64
ARRAY
CORE
CMOS STATIC RAM
Publication Release Date: February 1998
I/O(64:1)
W25P240A
Revision A4

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W25P240A-6 Summary of contents

Page 1

... GENERAL DESCRIPTION The W25P240A is a high-speed, low-power, synchronous-burst pipelined CMOS static RAM organized as 65,536 64 bits that operates on a single 3.3-volt power supply. A built-in two-bit burst address counter supports Pentium burst mode. FEATURES Synchronous operation Support 66/75 MHz bus speed Single +3.3V power supply Individual byte write capability 3 ...

Page 2

... W25P240A ...

Page 3

... FUNCTIONAL DESCRIPTION The W25P240A is a synchronous-burst pipelined SRAM designed for use in high-end personal computers. It supports only one burst address sequence for Intel initiated by ADSP or ADSC and the burst counter is incremented whenever ADV is sampled low. Burst Address Sequence External Start Address ...

Page 4

... BWE BW8 BW7 BW6 W25P240A OE DATA WRITE Hi-Z Read 1 Hi-Z Read 0 D-Out Read 1 Hi-Z Read 0 D-Out Read 1 Hi-Z Read 0 D-Out Read 1 Hi-Z Read 0 D-Out Read X Hi-Z Write ...

Page 5

... Publication Release Date: February 1998 - 5 - W25P240A BW5 BW4 BW3 BW2 BW1 ...

Page 6

... min., I CYC Unselected mode defined in truth table (min.) /V (max.) T min. IL CYC = 3.3V W25P240A BW5 BW4 BW3 BW2 UNIT V +0.5 ...

Page 7

... OUT 1. pF OUTPUT 30 pF Including Jig and Scope T (For KHZ, 3.0V 90% 90% 10% 10 W25P240A MAX. UNIT 6 8 CONDITIONS / mA 320 ohm 3. 350 ohm Including Jig and Scope measurement) KLZ, OHZ, OLZ, ...

Page 8

... T CES 0 CEH 13.3 - CYC 13.3 KHZ KLZ OHZ OLZ W25P240A W25P240A-6A UNIT NOTE MIN. MAX ...

Page 9

... ADSP is blocked by CE inactive T T ADCS ADCH T ADVH Suspend Burst RD2 masks ADSP OHZ W25P240A Pipelined Read Unselected ADSC initiated read RD3 Unselected with KHZ Publication Release Date: February 1998 Revision A4 ...

Page 10

... ADSP is blocked by CE inactive T ADCH T ADVH WR2 GW allows processor address (and BE = BWE pipelined during a writeback WR2 CE masks ADSP T DH BW[8:1] are applied only to first cycle of WR2 W25P240A Write Unselected ADSC initiated write WR3 WR3 Unselected with ...

Page 11

... ADSP is blocked by CE inactive T T ADCH ADSC initiated read ADCS ADVH Suspend Burst WR1 RD2 WR1 OHZ KHZ W25P240A Unselected CE masks ADSP Unselected with KHZ Publication Release Date: February 1998 Revision A4 ...

Page 12

... Winbond reserves the right to make changes to its products without prior notice. 2. Purchasers are responsible for performing appropriate quality assurance testing on products intended for use in applications where personal injury might occur as a consequence of product failure. OPERATING CURRENT MAX. (mA) 75 350 66 350 - 12 - W25P240A STANDBY PACKAGE CURRENT MAX. (mA) 80 100-pin QFP 80 100-pin QFP ...

Page 13

... PACKAGE DIMENSIONS 100-pin QFP See Detail F Seating Plane W25P240A Dimension in mm Dimension in inches Symbol Min. Nom. Max. Min. Nom 0.01 0.014 0.018 0.25 0.35 1 0.101 0.107 0.113 2.57 A 2.72 2 0.008 0.012 0.016 0.20 0.30 b 0.004 0.006 0.008 0.10 0.15 c 13.90 14.00 D 0.547 ...

Page 14

... 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 Note: All data and specifications are subject to change without notice. PAGE Initial Issued Change part no. from W25P240A-75/66 to W25P240A-6/7 8 A.C. Timing Characteristics: T from 2 from 0 from 2 ...

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