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參數(shù)資料
| 型號： | WE256K32-250G2TME |
| 元件分類： | PROM |
| 英文描述： | 256K X 32 EEPROM 5V MODULE, 250 ns, CQFP68 |
| 封裝： | CERAMIC, QFP-68 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 0K |
| 代理商： | WE256K32-250G2TME |
1
White Electronic Designs Corporation Phoenix, AZ (602) 437-1520
HI-RELIABILITY PRODUCT
WE256K32-XG2TXE
256Kx32 EEPROM MODULE PRELIMINARY*
FEATURES
s Access Times of 150, 200, 250, 300ns
s Packaging:
68 lead, Hermetic CQFP (G2T), 22.4mm (0.880") square,
4.57mm (0.180") high (Package 509). Designed to fit JEDEC
68 lead 0.990" CQFJ footprint (Fig. 1)
s Organized as 256Kx32.
s CMOS:
Radiation Tolerant with Epitaxial Layer Die
s Write Endurance 10,000 Cycles
s Data Retention Ten Years Minimum (at +25
°C)
s Commercial, Industrial and Military Temperature Ranges
s Automatic Page Write Operation
s Page Write Cycle Time: 10ms Max
s Data Polling for End of Write Detection
s Hardware and Software Data Protection
s TTL Compatible Inputs and Outputs
s 5 Volt Power Supply
s Built-in Decoupling Caps and Multiple Ground Pins for Low
Noise Operation
s Weight
WE256K32-XG2TXE - 20 grams typical
* This data sheet describes a product that under development, not fully
characterized, and is subject to change without notice.
May 1999 Rev. 2
FIG. 1 PIN CONFIGURATION FOR WE256K32-XG2TXE
PIN DESCRIPTION
BLOCK DIAGRAM
TOP VIEW
I/O0-31 Data Inputs/Outputs
A0-16
Address Inputs
WE1-4
Write Enables
CS1-8
Chip Selects
OE
Output Enable
VCC
Power Supply
GND
Ground
RESET
Reset
NC
Not Connected
8
I/O 0-7
RESET
I/O 8-15
CS2
I/O 16-23
I/O 24-31
A 0-16
WE 1
8
2M x 8
8
128K x 8
8
128K x 8
2M x 8
128K x 8
2M x 8
128K x 8
2M x 8
128K x 8
OE
WE 2
WE 3
WE 4
CS1
CS4
CS3
CS6
CS5
CS8
CS7
The White 68 lead G2T CQFP
fills the same fit and function as
the JEDEC 68 lead CQFJ or 68
PLCC. But the G2T has the TCE
and lead inspection advantage
of the CQFP form.
0.940"
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
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
V
CC
A
11
A
12
A
13
A
14
A
15
A
16
CS
1
OE
CS
2
CS
5
WE
2
WE
3
WE
4
CS
6
CS
7
CS
8
I/O16
I/O17
I/O18
I/O19
I/O20
I/O21
I/O22
I/O23
GND
I/O24
I/O25
I/O26
I/O27
I/O28
I/O29
I/O30
I/O31
RESET
A
0
A
1
A
2
A
3
A
4
A
5
CS
3
GND
CS
4
WE
1
A
6
A
7
A
8
A
9
A
10
V
CC
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| WE256K8-150CC | 制造商:Microsemi Corporation 功能描述:256K X 8 EEPROM MODULE, 150NS, 32 DIP, COMMERCIAL SCREENED - Bulk |
| WE256K8-150CCA | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512Kx8 CMOS EEPROM, WE512K8-XCX, SMD 5962-93091 |
| WE256K8-150CI | 制造商:Microsemi Corporation 功能描述:256K X 8 EEPROM MODULE, 150NS, 32 DIP, INDUSTRIAL SCREENED - Bulk |
| WE256K8-150CIA | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:512Kx8 CMOS EEPROM, WE512K8-XCX, SMD 5962-93091 |
| WE256K8-150CM | 制造商:White Electronic Designs 功能描述:Res Thin Film 0603 2.8K Ohm 0.1% 1/16W ±50ppm/°C Molded SMD Paper T/R 制造商:Microsemi Corporation 功能描述:256K X 8 EEPROM MODULE, 150NS, 32 DIP, MIL-SCREENED - Bulk |
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