White Electronic Designs
128K
X
32 SRAM/FLASH MODULE
FEATURES
Access Times of 25ns (SRAM) and 70, 90 and
120ns (FLASH)
Packaging:
• 66-pin, PGA Type, 1.385 inch square HIP,
Hermetic Ceramic HIP (Package 402)
128Kx32 SRAM
128Kx32 5V Flash
Organized as 128Kx32 of SRAM and 128Kx32 of
Flash Memory with common Data Bus
Low Power CMOS
Commercial, Industrial and Military Temperature
Ranges
TTL Compatible Inputs and Outputs
Built-in Decoupling Caps and Multiple Ground Pins
for Low Noise Operation
Weight - 13 grams typical
WSF128K32-XH2X
PRELIMINARY*
FLASH MEMORY FEATURES
10,000 Erase/Program Cycles
Sector Architecture
• 8 equal size sectors of 16K bytes each
• Any combination of sectors can be concurrently
erased. Also supports full chip erase
5 Volt Programming; 5V ± 10% Supply
Embedded Erase and Program Algorithms
Hardware Write Protection
Page Program Operation and Internal Program
Control Time.
* This product is under development, not fully characterized, and is subject to change
without notice.
Note: Programming information available upon request.
FIGURE 1 – PIN CONFIGURATION FOR WSF128K32-XH2X
Top View
1
I/O
8
I/O
9
I/O
10
A
14
A
16
A
11
A
0
NC
I/O
0
I/O
1
I/O
2
11
22
12
FWE
2
#
SWE
2
#
GND
I/O
11
A
10
A
9
A
15
V
CC
FCS#
SCS#
I/O
3
33
23
I/O
15
I/O
14
I/O
13
I/O
12
OE#
NC
FWE
1
#
I/O
7
I/O
6
I/O
5
I/O
4
I/O
24
I/O
25
I/O
26
A
7
A
12
SWE
1
#
A
13
A
8
I/O
16
I/O
17
I/O
18
44
34
V
CC
SWE
4
#
FWE
4
#
I/O
27
A
4
A
5
A
6
FWE
3
#
SWE
3
#
GND
I/O
19
55
45
I/O
31
I/O
30
I/O
29
I/O
28
A
1
A
2
A
3
FWE
1
#
SWE
1
#
Pin Description
56
D0-31
A0-16
SWE1-4#
SCS#
OE#
V
CC
GND
NC
FWE1-4#
FCS#
Data Inputs/Outputs
Address Inputs
SRAM Write Enable
SRAM Chip Selects
Output Enable
Power Supply
Ground
Not Connected
Flash Write Enable
Flash Chip Select
Block Diagram
FWE
2
#
SWE
2
#
FWE
3
#
SWE
3
#
FWE
4
#
SWE
4
#
OE#
A
0-16
SCS#
FCS#
I/O
23
I/O
22
I/O
21
I/O
20
66
128K x 8 Flash
128K x 8 SRAM
128K x 8 Flash
128K x 8 SRAM
128K x 8 Flash
128K x 8 SRAM
128K x 8 Flash
128K x 8 SRAM
I/O
0-7
I/O
8-15
I/O
16-23
I/O
24-31
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
October 2004
Rev. 4
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
WEDC [ WHITE ELECTRONIC DESIGNS CORPORATION ]
