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參數(shù)資料
| 型號： | WF4M16-90DTI5A |
| 元件分類： | PROM |
| 英文描述： | 4M X 16 FLASH 5V PROM MODULE, 90 ns, CDSO56 |
| 封裝： | 0.520 INCH, DUAL CAVITY, CERAMIC, SOP-56 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 122K |
| 代理商： | WF4M16-90DTI5A |
1
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
HI-RELIABILITY PRODUCT
WF4M16-XDTX5
November 1999 Rev.3
2x2Mx16 5V FLASH MODULE ADVANCED*
s Data Polling and Toggle Bit feature for detection of program
or erase cycle completion.
s Supports reading or programming data to a sector not being
erased.
s Built-in Decoupling Caps and Multiple Ground Pins for Low
Noise Operation, Separate Power and Ground Planes to
improve noise immunity
s RESET pin resets internal state machine to the read mode.
s Ready/Busy (RY/BY) output for direction of program or erase
cycle completion.
*
This data sheet describes a product that may or may not be under
development and is subject to change or cancellation without notice.
Note: For programming information refer to Flash Programming 16M5
Application Note.
FEATURES
s Access Time of 90, 120, 150ns
s Packaging:
56 Lead, Hermetic Ceramic, 0.520" CSOP (Package 213).
Fits standard 56 SSOP footprint.
s Sector Architecture
32 equal size sectors of 64KBytes per each 2Mx8 chip
Any combination of sectors can be erased. Also supports
full chip erase.
s Minimum 100,000 Write/Erase Cycles Minimum
s Organized as two banks of 2Mx16; User Configurable as
4 x 2Mx8
s Commercial, Industrial, and Military Temperature Ranges
s 5 Volt Read and Write. 5V
± 10% Supply.
s Low Power CMOS
FIG. 1 PIN CONFIGURATION FOR WF4M16-XDTX5
BLOCK DIAGRAM
TOP VIEW
56 CSOP
PIN DESCRIPTION
I/O0-15
Data Inputs/Outputs
A0-20
Address Inputs
WE
Write Enable
CS1-4
Chip Selects
OE
Output Enable
VCC
Power Supply
GND
Ground
RY/BY
Ready/Busy
RESET
Reset
I/O 0-7
CS1
I/O 8-15
CS2
CS3
CS4
A 0-20
OE
WE
RY/BY
RESET
2M x 8
NOTE:
1. RY/BY is an open drain output and should be pulled-up to Vcc with an
external resistor.
2. CS1 and CS3 control the same data bus. Reads cannot be done with CS1
and CS3 both active. CS2 and CS4 control the same data bus. Reads
cannot be done with CS2 and CS4 both active.
3. Address compatible with Intel 2M8 56 SSOP.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
CS1
A12
A13
A14
A15
NC
CS2
NC
A20
A19
A18
A17
A16
VCC
GND
I/O6
I/O14
I/O7
I/O15
RY/BY
OE
WE
NC
I/O13
I/O5
I/O12
I/O4
VCC
NC
RESET
A11
A10
A9
A1
A2
A3
A4
A5
A6
A7
GND
A8
VCC
I/O9
I/O1
I/O8
I/O0
A0
NC
CS3
CS4
I/O2
I/O10
I/O3
I/O11
GND
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| WF4M16-90DTM5 | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2x2Mx16 5V FLASH MODULE |
| WF4M16-90DTM5A | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:2x2Mx16 5V FLASH MODULE |
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