WF2M32-XXX5
White Electronic Designs
2Mx32 5V Flash Module
FEATURES
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Access Time of 90, 120, 150ns
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Organized as 2Mx32
Commercial, Industrial, and Military
Temperature Ranges
5 Volt Read and Write. 5V 10ꢀ Supply.
Low Power CMOS
Data# Polling and Toggle Bit feature for detection of
program or erase cycle completion.
Supports reading or programming data to a sector
not being erased.
RESET# pin resets internal state machine to the
read mode.
Built in Decoupling Caps and Multiple Ground Pins
for Low Noise Operation, Separate Power and
Ground Planes to improve noise immunity
Packaging:
• 66 pin, PGA Type, 1.185" square, Hermetic
Ceramic HIP (Package 401).
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• 68 lead, Hermetic CQFP (G2U), 22.4mm (0.880")
square (Package 510) 3.56mm (0.140") height.
Designed to fit JEDEC 68 lead 0.990" CQFJ
footprint (FIGURE 3)
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Sector Architecture
• 32 equal size sectors of 64KBytes per each 2Mx8
chip
• Any combination of sectors can be erased. Also
supports full chip erase.
Minimum 100,000 Write/Erase Cycles Minimum
* This product is subject to change without notice.
Note: For programming information refer to Flash Programming 16M5 Application Note.
FIGURE 1 – PIN CONFIGURATION FOR WF2M32-XHX5
Top View
Pin Description
I/O0-31
A0-20
WE1-4#
CS1-4#
OE#
Data Inputs/Outputs
Address Inputs
Write Enables
Chip Selects
Output Enable
Power Supply
Ground
1
12
23
34
45
56
I/O8
I/O9
I/O10
A14
A16
A11
A0
WE2#
CS2#
GND
I/O11
A10
I/O15
I/O24
I/O25
I/O26
A7
VCC
CS4#
WE4#
I/O27
A4
I/O31
I/O30
I/O29
I/O28
A1
I/O14
I/O13
I/O12
OE#
A17
VCC
GND
A12
Block Diagram
WE1# CS1#
WE2# CS2#
WE3# CS3#
WE4# CS4#
2M x 8
A9
A20
A5
A2
OE#
A0-20
A15
WE1#
I/O7
A13
A6
A3
2M x 8
2M x 8
2M x 8
A18
I/O0
I/O1
I/O2
VCC
CS1#
A19
A8
WE3#
CS3#
GND
I/O19
I/O23
I/O22
I/O21
I/O20
I/O6
I/O16
I/O17
I/O18
8
8
8
8
I/O5
I/O16-23
I/O24-31
I/O0-7
I/O8-15
I/O3
I/O4
RESET# internally tied to VCC in the HIP package for this pin con-
figuration. See Alternate Pin Configuration with RESET# tied to pin
12 for system control of reset (FIGURE 10, page 11).
11
22
33
44
55
66
October 2004
Rev. 5
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com