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参数资料
| 型号： | WS57C256F-55DMB |
| 元件分类： | PROM |
| 英文描述： | 32K X 8 UVPROM, 55 ns, CDIP28 |
| 封装： | 0.600 INCH, CERDIP-28 |
| 文件页数： | 1/5页 |
| 文件大小： | 50K |
| 代理商： | WS57C256F-55DMB |
WS57C256F
3-13
VCC
A14
A13
A8
A9
A11
OE
A10
CE/PGM
O7
O6
O5
O4
O3
VPP
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A8
A9
A11
NC
OE
A10
CE/PGM
O7
O6
A6
A5
A4
A3
A2
A1
A0
NC
O0
A
7
A
12
V
PP
NC
V
CC
A
14
A
13
O1 O2
NC O3 O4 O5
1
43
2
32 31 30
29
28
27
26
25
24
23
22
21
5
6
7
8
9
10
11
12
13
14 15 16 17 18 19 20
GND
TOP VIEW
Chip Carrier
CERDIP
PIN CONFIGURATION
HIGH SPEED 32K x 8 CMOS EPROM
KEY FEATURES
Fast Access Time
Immune to Latch-UP
— tACC = 35 ns
— Up to 200 mA
— tCE = 35 ns
ESD Protection Exceeds 2000 Volts
Low Power Consumption
Available in 300 Mil DIP and PLDCC
— 200 A Standby ICC
DESC SMD No. 5962-86063
GENERAL DESCRIPTION
The WS57C256F is a High Performance 32K x 8 UV Erasable EPROM. It is manufactured using an advanced
CMOS process technology enabling it to operate at speeds as fast as 35 ns Address Access Time (tACC) and 35 ns
Chip Enable Time (tCE). It was designed utilizing WSI's patented self-aligned split gate EPROM cell, resulting in a
low power device with a very cost effective die size. The low standby power capability of this 256 K product (200 A
in a CMOS interface environment) is especially attractive.
This product, with its high speed capability, is particularly appropriate for use with today's fast DSP processors and
high-clock-rate Microprocessors. The WS57C256F's 35 ns speed enables these advanced processors to operate
without introducing any undesirable wait states. The WS57C256F is also ideal for use in modem applications, and is
recommended for use in these applications by the leading modem chip set manufacturer.
The WS57C256F is available in a variety of package types including the space saving 300 Mil DIP, the surface
mount PLDCC, and other windowed and non-windowed options. And its standard JEDEC EPROM pinouts provide
for automatic upgrade density paths for current 64K and 128K EPROM users.
PINS
CE/
OE
A9
A0 VPP VCC OUTPUTS
MODE
PGM
Read
VIL
XX
VCC VCC
DOUT
Output
Disable
XVIH
XX
VCC VCC
High Z
Standby
VIH
XX
X
VCC VCC
High Z
Program
VIL
VIH
XX
VPP
2 VCC
DIN
Program
Verify
XVIL
XX
VPP2 VCC
DOUT
Program
Inhibit
VIH VIH
XX
VPP
2 VCC High Z
Signature3
VIL
VIL VH
2
VIL VCC VCC
23 H
4
VIL
VIL VH
2
VIH VCC VCC
EO H
5
MODE SELECTION
NOTES:
1. X can be VIL or VIH.
4. Manufacturer Signature.
2. VIH = VPP = 12.75 ± 0.25 V.
5. Device Signature.
3. A1 – A8, A10 – A14 = VIL.
PRODUCT SELECTION GUIDE
PARAMETER
WS57C256F-35
WS57C256F-45
WS57C256F-55
WS57C256F-70
Address Access Time (Max)
35 ns
45 ns
55 ns
70 ns
Output Enable Time (Max)
15 ns
20 ns
25 ns
30 ns
Return to Main Menu
相关PDF资料 |
PDF描述 |
|---|---|
| WS57C256F-55J | 32K X 8 OTPROM, 55 ns, PQCC32 |
| WS57C256F-55L | 32K X 8 UVPROM, 55 ns, CQCC32 |
| WMF128K8-120CLQ5 | 128K X 8 FLASH 5V PROM, 120 ns, CQCC32 |
| WMF128K8-70DEQ5A | 128K X 8 FLASH 5V PROM, 70 ns, CDSO32 |
| WE128K16-150CC5A | 128K X 16 FLASH 5V PROM MODULE, 150 ns, CDMA40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| WS57C256F-55J | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH SPEED 32K x 8 CMOS EPROM |
| WS57C256F-55L | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH SPEED 32K x 8 CMOS EPROM |
| WS57C256F-55P | 制造商:WSI 功能描述: |
| WS57C256F-55T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH SPEED 32K x 8 CMOS EPROM |
| WS57C256F-55TMB | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH SPEED 32K x 8 CMOS EPROM |
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