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WS57C45-45 PDF даташит

Спецификация WS57C45-45 изготовлена ​​​​«STMicroelectronics» и имеет функцию, называемую «MILITARY 2K x 8 REGISTERED CMOS PROM/RPROM».

Детали детали

Номер произв WS57C45-45
Описание MILITARY 2K x 8 REGISTERED CMOS PROM/RPROM
Производители STMicroelectronics
логотип STMicroelectronics логотип 

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WS57C45-45 Даташит, Описание, Даташиты
WS57C45
MILITARY 2K x 8 REGISTERED CMOS PROM/RPROM
Ultra-Fast Access Time
— 35 ns Setup
— 15 ns Clock to Output
Low Power Consumption
Fast Programming
Programmable Synchronous or
Asynchronous Output Enable
KEY FEATURES
DESC SMD Nos. 5962-88735/5962-87529
Pin Compatible with AM27S45 and
CY7C245
Immune to Latch-UP
— Up to 200 mA
ESD Protection Exceeds 2000 Volts
Programmable Asynchronous Initialize
Register
GENERAL DESCRIPTION
The WS57C45 is an extremely High Performance 16K UV Erasable Registered CMOS RPROM. It is a direct
drop-in replacement for such devices as the AM27S45 and CY7C245.
To meet the requirements of systems which execute and fetch instructions simultaneously, an 8-bit parallel data
register has been provided at the output which allows RPROM data to be stored while other data is being
addressed.
An asynchronous initialization feature has been provided which enables a user programmable 2049th word to be
placed on the outputs independent of the system clock. This feature can be used to force an initialize word or
provide a preset or clear function.
A further advantage of the WS57C45 over Bipolar PROM devices is the fact that it utilizes a proven EPROM
technology. This enables the entire memory array to be tested for switching characteristics and functionality after
assembly. Unlike devices which cannot be erased, every WS57C45 RPROM in a windowed package is 100%
tested with worst case test patterns both before and after assembly.
PIN CONFIGURATION
TOP VIEW
CERDIP
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
1
2
3
4
5
6
7
8
9
10
11
12
24 VCC
23 A8
22 A9
21 A10
20 INIT/VPP
19 OE/OES
18 CP/PGM
17 O7
16 O6
15 O5
14 O4
13 O3
PRODUCT SELECTION GUIDE
PARAMETER
Set Up Time (Max)
Clock to Output (Max)
WS57C45-35
35 ns
15 ns
WS57C45-45
45 ns
25 ns
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WS57C45-45 Даташит, Описание, Даташиты
WS57C45
ORDERING INFORMATION
PART NUMBER
SPEED
(ns)
PACKAGE
TYPE
WS57C45-35TMB*
WS57C45-45KMB*
WS57C45-45TMB*
35 24 Pin CERDIP, 0.3"
45 24 Pin CERDIP, 0.3"
45 24 Pin CERDIP, 0.3"
NOTE: The actual part marking will not include the initials "WS."
*SMD product. See page 5-1 for DESC SMD numbers.
PACKAGE
DRAWING
OPERATING
TEMPERATURE
RANGE
WSI
MANUFACTURING
PROCEDURE
T1
Military
MIL-STD-883C
K1
Military
MIL-STD-883C
T1
Military
MIL-STD-883C
PROGRAMMING/ALGORITHMS/ERASURE/PROGRAMMERS
The WS57C45 is programmed using Algorithm A shown on page 5-3.
REFER TO
PAGE 5-1
For complete data sheet and electrical specifications see page 2-21.
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