WF2M32-XXX5
White Electronic Designs
2Mx32 5V Flash Module
FEATURES
Access Time of 90, 120, 150ns
Organized as 2Mx32
Packaging:
Commercial, Industrial, and Military
Temperature Ranges
• 66 pin, PGA Type, 1.185" square, Hermetic
Ceramic HIP (Package 401).
5 Volt Read and Write. 5V ± 10% Supply.
Low Power CMOS
• 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)
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.
Sector Architecture
RESET# pin resets internal state machine to the
read mode.
• 32 equal size sectors of 64KBytes per each 2Mx8
chip
Built in Decoupling Caps and Multiple Ground Pins
for Low Noise Operation, Separate Power and
Ground Planes to improve noise immunity
• 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
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
Output Enable
Power Supply
Ground
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.whiteedc.com