WE512K16-140G4QA データシートの表示（PDF） - White Electronic Designs => Micro Semi
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WE512K16-140G4QA Datasheet PDF : 10 Pages
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White Electronic Designs
WE512K16-XG4X
512Kx16 CMOS EEPROM MODULE
FEATURES
Access Time of 140, 150, 200ns
Page Write Cycle Time: 10ms Max
Packaging:
Data Polling for End of Write Detection
• 68 lead, 40mm Hermetic CQFP (Package 501)
Hardware and Software Data Protection
Organized as 4 banks of 128Kx16
TTL Compatible Inputs and Outputs
Write Endurance 10,000 Cycles
5 Volt Power Supply
Data Retention Ten Years Minimum
Military Temperature Range
Low Power CMOS
8 Built-in Decoupling Caps and Multiple Ground Pins for Low
Noise Operation
Weight - 20 grams typical
Automatic Page Write Operation
FIGURE 1 – PIN CONFIGURATION
Top View
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
GND
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
10
60
11
59
12
58
13
57
14
56
15
55
16
54
17
53
18
52
19
51
20
50
21
49
22
48
23
47
24
46
25
45
26
44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
NC
NC
INC
NC
NC
NC
NC
NC
GND
NC
NC
NC
NC
NC
NC
NC
NC
Pin Description
I/O0-15
A0-16
WE#
Data Input/Output
Address Inputs
Write Enable
CS1-4#
OE#
VCC
GND
NC
Chip Selects
Output Enable
+5.0V Power
Ground
Not Connected
Block Diagram
CS1#
CS2#
CS3#
CS4#
A0-16
OE#
WE#
128K x 8
128K x 8
128K x 8
128K x 8
128K x 8
128K x 8
128K x 8
128K x 8
I/O0-7
I/O8-15
NOTE: CS1-4# are used as bank selects. During reads, only one CSx#
can be active at one time.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
April 1999
Rev. 2
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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