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參數資料
| 型號： | WS57C49C-45L |
| 元件分類： | PROM |
| 英文描述： | 8K X 8 UVPROM, 45 ns, CQCC28 |
| 封裝： | CERAMIC, LDCC-28 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 54K |
| 代理商： | WS57C49C-45L |
WS57C49C
VCC
A8
A9
A10
CS1/VPP
A11
A12
O7
O6
O5
O4
O3
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
A10
CS1/VPP
A11
A12
NC
O7
O6
A5 A6 A7
VCC A8 A9
NC
A4
A3
A2
A1
A0
NC
O0
O1 O2
NC O3 O4 O5
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
43
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
Pin Compatible with Bipolar PROMs
— tACC = 25 ns
Immune to Latch-UP
— tCS = 12 ns
— Up to 200 mA
Low Power Consumption
ESD Protection Exceeds 2000 V
Fast Programming
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
57C49C-25
57C49C-35
57C49C-45
57C49C-55
57C49C-70
Address Access Time (Max)
25 ns
35 ns
45 ns
55 ns
70 ns
CS to Output Valid Time (Max)
12 ns
20 ns
25 ns
ROW
DECODER
EPROM ARRAY
65,536 BITS
COLUMN
DECODER
SENSE
AMPLIFIERS
8
OUTPUTS
CS1/ VPP
A0 - A4
COLUMN
ADDRESSES
A5 - A12
ROW
ADDRESSES
8
5
BLOCK DIAGRAM
Return to Main Menu
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相關代理商/技術參數 |
參數描述 |
|---|---|
| WS57C49C-45S | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| WS57C49C-45T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH SPEED 8K x 8 CMOS PROM/RPROM |
| 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 |
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