器件名称: W25P240A
功能描述: 64K X 64 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM
文件大小: 166.77KB 共14页
简 介:W25P240A 64K × 64 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM
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 3.3V LVTTL compatible I/O Clock-controlled and registered input Asynchronous output enable Internal burst counter supports Intel burst mode Packaged in 100-pin QFP
BLOCK DIAGRAM
A(15:0)
INPUT REGISTER 64K X 64 CORE ARRAY
CLK CE GW BWE BW(8:1) OE ADSC ADSP ADV
CONTROL LOGIC DATA I/O REGISTER
I/O(64:1)
-1-
Publication Release Date: February 1998 Revision A4
W25P240A
PIN CONFIGURATION
I / O 3 4
I / O 3 3
/ B W 8
/ B W 7
/ B W 6
/ B W 5
/ / A A / B / / / C D D WG O C L S S E W E E K P C
/ A D V
/ B W 4
/ B W 3
/ B W 2
/ B W 1
I / O 3 2
I / O 3 1
I/O 35 I/O 36 I/O 37 I/O 38 I/O 39 I/O 40 I/O 41 I/O 42 I/O 43 I/O 44 I/O 45 I/O 46 I/O 47 I/O 48 VDD VSS I/O 49 I/O 50 I/O 51 I/O 52 I/O 53 I/O 54 I/O 55 I/O 56 I/O 57 I/O 58 I/O 59 I/O 60 I/O 61 I/O 62
1 9 9 9 9 9 9 9 9 9 9 8 8 8 8 8 8 8 8 8 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 80 79 2 0 78 3 77 4 76 5 75 6 74 7 73 8 72 9 71 10 11 70 12 69 68 13 14 67 66 15 65 16 17 64 63 18 62 19 61 20 60 21 59 22 58 23 24 57 56 25 55 26 54 27 28 53 52 29 30 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 ……
