57C49C-45D STMicroelectronics, 57C49C-45D Datasheet

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57C49C-45D

Manufacturer Part Number
57C49C-45D
Description
Manufacturer
STMicroelectronics
Datasheet

Specifications of 57C49C-45D

Density
64Kb
Organization
8Kx8
Access Time (max)
45ns
Operating Current
40mA
Interface Type
Parallel
Package Type
CDIP
Operating Temperature Classification
Commercial
Operating Supply Voltage (typ)
5V
Operating Temp Range
0C to 70C
Pin Count
24
Mounting
Through Hole
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / RoHS Status
Supplier Unconfirmed

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Part Number
Manufacturer
Quantity
Price
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57C49C-45D
Manufacturer:
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BLOCK DIAGRAM
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
— t
— t
Ultra-Fast Access Time
Fast Programming
Low Power Consumption
PARAMETER
Address Access Time (Max)
CS to Output Valid Time (Max)
ACC
CS
A5 - A12
ROW
ADDRESSES
A0 - A4
COLUMN
ADDRESSES
CS1/ V
= 12 ns
= 25 ns
Return to Main Menu
PP
5
8
HIGH SPEED 8K x 8 CMOS PROM/RPROM
DECODER
ROW
EPROM ARRAY
AMPLIFIERS
65,536 BITS
DECODER
COLUMN
OUTPUTS
SENSE
8
57C49C-25
25 ns
12 ns
GENERAL DESCRIPTION
KEY FEATURES
57C49C-35
PIN CONFIGURATION
35 ns
20 ns
NC
O
A
A
A
A
A
4
3
2
1
0
0
Pin Compatible with Bipolar PROMs
— Up to 200 mA
ESD Protection Exceeds 2000 V
Available in 300 Mil DIP and PLDCC
Immune to Latch-UP
5
6
7
8
9
10
11
O
A
12 13 14 15 16 17 18
4 3 2
1
5
O
A
6
2
Chip Carrier
GND
A
7
57C49C-45
NC O
NC
1
V
45 ns
25 ns
28 27 26
CC
3
O
A
4
8
O
A
9
25
24
23
22
21
20
19
5
TOP VIEW
A
CS1/V
A
A
NC
O
O
10
11
12
7
6
57C49C-55
PP
55 ns
25 ns
GND
CERDIP/Plastic DIP
O
O
O
A
A
A
A
A
A
A
A
7
6
5
4
3
2
1
0
0
1
2
WS57C49C
1
2
3
4
5
6
7
8
9
10
11
12
Flatpack
57C49C-70
24
23
22
21
20
19
18
17
16
15
14
13
70 ns
25 ns
V
A
A
A 10
CS1/V
A
A
O
O
O
O
O
CC
8
9
11
12
7
6
5
4
3
2-39
PP

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57C49C-45D Summary of contents

Page 1

... 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 ...

Page 2

... WS57C49C ABSOLUTE MAXIMUM RATINGS* Storage Temperature............................–65° 150°C Voltage on any Pin with Respect to Ground ....................................–0.6V to +7V V with Respect to Ground...................–0. 13V PP ESD Protection .................................................. * NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of ...

Page 3

... Address to Output Delay t ACC CS1 to Output Delay t CS Output Disable Output Float Address to Output Hold Sampled, Not 100% Tested. AC READ TIMING DIAGRAM ADDRESSES CS OUTPUTS Over Operating Range. (See Above) 57C49C-25 57C49C-35 57C49C-45 57C49C-55 57C49C-70 MIN MAX MIN MAX MIN MAX VALID t ACC t CS ...

Page 4

... WS57C49C CAPACITANCE ( 25° MHz A SYMBOL PARAMETER C Input Capacitance IN C Output Capacitance OUT C V Capacitance VPP PP NOTES: 4. This parameter is only sampled and is not 100% tested. 5.Typical values are for T = 25°C and nominal supply voltages. A TEST LOAD (High Impedance Test Systems ...

Page 5

... NORMALIZED SUPPLY CURRENT 1.2 1.1 1.0 0.9 0.8 -55 -35 -15 85 105 125 WS57C49C vs. OUTPUT LOADING 200 400 600 800 1000 CAPACITANCE ( pF ) vs. AMBIENT TEMPERATURE 105 125 AMBIENT TEMPERATURE (°C) 2-43 ...

Page 6

... WS57C49C PROGRAMMING INFORMATION DC CHARACTERISTICS SYMBOLS Input Leakage Current Supply Current During Programming Pulse I V Supply Current CC CC Output Low Voltage During Verify mA) OL Output High Voltage During Verify –4 mA) OH NOTES must not be greater than 13 volts including overshoot CHARACTERISTICS SYMBOLS t Address Setup Time ...

Page 7

... ORDERING INFORMATION SPEED PART NUMBER (ns) WS57C49C-25D 25 WS57C49C-25J 25 WS57C49C-25S 25 WS57C49C-25T 25 WS57C49C-35CMB 35 WS57C49C-35D 35 WS57C49C-35DMB 35 WS57C49C-35J 35 WS57C49C-35L 35 WS57C49C-35S 35 WS57C49C-35T 35 WS57C49C-35TI 35 WS57C49C-35TMB 35 * WS57C49C-45CMB 45 WS57C49C-45D 45 * WS57C49C-45DMB 45 WS57C49C-45J 45 WS57C49C-45JI 45 WS57C49C-45L 45 WS57C49C-45S 45 WS57C49C-45T 45 WS57C49C-45TI 45 * WS57C49C-45TMB 45 * WS57C49C-55CMB 55 WS57C49C-55D 55 * WS57C49C-55DMB 55 * WS57C49C-55FMB 55 WS57C49C-55J 55 WS57C49C-55T 55 * WS57C49C-55TMB 55 * WS57C49C-70CMB 70 WS57C49C-70D 70 * WS57C49C-70TMB 70 NOTE: The actual part marking will not include the initials "WS." ...

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