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參數資料
| 型號： | WS57C49C-45T |
| 廠商： | 意法半導體 |
| 英文描述： | HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| 中文描述： | 高速8K的× 8的CMOS胎膜早破/ RPROM |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 52K |
| 代理商： | WS57C49C-45T |
WS57C49C
V
CC
A
8
A
9
A10
CS1/V
PP
A
11
A
12
O
7
O
6
O
5
O
4
O
3
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
O
0
O
1
O
2
GND
A
10
CS1/V
PP
A
11
A
12
NC
O
7
O
6
A
5
A
6
A
7
V
CC
A
8
A
9
NC
A
4
A
3
A
2
A
1
A
0
NC
O
0
O
1
O
2
NC O
3
O
4
O
5
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1
4 3
2
28 27 26
25
24
23
22
21
20
19
5
6
7
8
9
10
11
12 13 14 15 16 17 18
TOP VIEW
Chip Carrier
CERDIP/Plastic DIP
Flatpack
PIN CONFIGURATION
2-39
HIGH SPEED 8K x 8 CMOS PROM/RPROM
KEY FEATURES
Ultra-Fast Access Time
— t
ACC
= 25 ns
— t
CS
= 12 ns
Low Power Consumption
Fast Programming
Pin Compatible with Bipolar PROMs
Immune to Latch-UP
— Up to 200 mA
ESD Protection Exceeds 2000 V
Available in 300 Mil DIP and PLDCC
GENERAL DESCRIPTION
The WS57C49C is a High Performance 64K UV Erasable Electrically Re-Programmable Read Only Memory
(RPROM). It is manufactured in an advanced CMOS technology which enables it to operate at Bipolar PROM
speeds while consuming only 25% of the power required by its Bipolar counterparts. A further advantage of the
WS57C49C 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 WS57C49C in a windowed package is 100% tested with worst case test patterns both
before and after assembly.
The WS57C49C is configured in the standard Bipolar PROM pinout which provides an easy upgrade path for
systems which are currently using Bipolar PROMs, or its predecessor, the WS57C49B.
PRODUCT SELECTION GUIDE
PARAMETER
Address Access Time (Max)
CS to Output Valid Time (Max)
57C49C-25
25 ns
12 ns
57C49C-35
35 ns
20 ns
57C49C-45
45 ns
25 ns
57C49C-55
55 ns
25 ns
57C49C-70
70 ns
25 ns
ROW
DECODER
EPROM ARRAY
65,536 BITS
COLUMN
DECODER
SENSE
AMPLIFIERS
8
OUTPUTS
CS1/V
PP
A0 - A4
COLUMN
ADDRESSES
A5 - A12
ROW
ADDRESSES
8
5
BLOCK DIAGRAM
Return to Main Menu
相關PDF資料 |
PDF描述 |
|---|---|
| WS57C49C-45TI | HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| WS57C49C-25D | CURRENT LIMITR INRSH 2.5 OHM 20% |
| WS57C49C-25J | CURRENT LIMITER INRSH 33 OHM 20% |
| WS57C49C-25S | CURRENT LIMITR INRSH 4.7 OHM 20% |
| WS57C49C-25T | CURRENT LIMITR INRSH 5.0 OHM 20% |
相關代理商/技術參數 |
參數描述 |
|---|---|
| WS57C49C-45TI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| WS57C49C-45TMB | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| WS57C49C-55 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MILITARY HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| WS57C49C-55CMB | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| WS57C49C-55D | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH SPEED 8K x 8 CMOS PROM/RPROM |
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