SGS Thomson Microelectronics WS57C291C, WS57C191C Datasheet
PRODUCT SELECTION GUIDE
PARAMETER 191C/291C-25 191C/291C-35 191C/291C-45 191C/291C-55
Address Access Time (Max) 25 ns 35 ns 45 ns 55 ns
CS to Output Valid Time (Max) 12 ns 20 ns 20 ns 20 ns
HIGH SPEED 2K x8 CMOS PROM/RPROM
KEY FEATURES
• Ultra-Fast Access Time • Pin Compatible with Am27S191/291
— t
ACC
= 25 ns
and N82S191 Bipolar PROMs
—tCS= 12 ns
• Immune to Latch-UP
• Low Power Consumption — Up to 200 mA
• Fast Programming • ESD Protection Exceeds 2000V
• Available in 300 Mil DIP and PLDCC
GENERAL DESCRIPTION
The WS57C191C/291C is an extremely High Performance 16K 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. The WS57C191C/291C
is also configured in the standard Bipolar PROM pinout which provides an easy upgrade path for systems which are
currently using Bipolar PROMs.
The WS57C191C is packaged in a conventional 600 mil DIP package as well as a Plastic Leaded Chip Carrier
(PLDCC) and a Ceramic Leadless Chip Carrier (CLLCC). The WS57C291C is packaged in a space saving 300 mil
DIP package configuration. Both are available in commercial, industrial, and military operating temperature ranges.
WS57C191C/291C
V
CC
A
8
A
9
A
10
CS1/V
PP
CS2
CS3
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
CS2
CS3
NC
O
7
O
6
A5 A6 A7 VCC A8 A
9
NC
A
4
A
3
A
2
A
1
A
0
NC
O
0
O1 O2 NC O3 O4 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
432
28 27
26
25
24
23
22
21
20
19
5
6
7
8
9
10
11
12 13 1415161718
TOP VIEW
Chip Carrier CERDIP/Plastic DIP
PIN CONFIGURATION
2-7
ROW
DECODER
EPROM ARRAY
16,384 BITS
COLUMN
DECODER
SENSE
AMPLIFIERS
8
CS2
CS3
OUTPUTS
CS1/V
PP
A0 - A4
COLUMN
ADDRESSES
A5 - A10
ROW
ADDRESSES
6
5
BLOCK DIAGRAM
Return to Main Menu
DC READ CHARACTERISTICS
Over Operating Range. (See Above)
SYMBOL PARAMETER TEST CONDITIONS MIN MAX UNITS
V
IL
Input Low Voltage (Note 3) –0.1 0.8 V
V
IH
Input High Voltage (Note 3) 2.0 V
CC
+ 0.3 V
V
OL
Output Low Voltage IOL= 16 mA 0.4 V
V
OH
Output High Voltage IOH= –4 mA 2.4 V
VCCActive Current
VCC= 5.5V, f = 0 MHz
Comm'l 30 mA
I
CC1
(CMOS)
(Note 1), Output Not Loaded Industrial 35 mA
Add 2mA/MHz for AC Operation
Military 35 mA
VCCActive Current
VCC= 5.5V, f = 0 MHz
Comm'l 40 mA
I
CC2
(TTL)
(Note 2), Output Not Loaded Industrial 50 mA
Add 2mA/MHz for AC Operation
Military 50 mA
I
LI
Input Leakage
Current
VIN= 5.5V or Gnd –10 10 µA
I
LO
Output Leakage
Current
V
OUT
= 5.5 V or Gnd –10 10 µA
WS57C191C/291C
2-8
OPERATING RANGE
RANGE TEMPERATURE V
CC
Commercial 0°C to +70°C +5V ± 10%
Industrial –40°C to +85°C +5V ± 10%
Military –55°C to +125°C +5V ± 10%
ABSOLUTE MAXIMUM RATINGS*
Storage Temperature............................–65° to + 150°C
Voltage on any Pin with
Respect to Ground ....................................–0.6V to +7V
VPPwith Respect to Ground...................–0.6V to + 14V
ESD Protection..................................................>2000V
NOTES: 1. CMOS inputs: GND ± 0.3V or VCC± 0.3V.
2. TTL inputs: VIL≤ 0.8V, VIH≥ 2.0V.
3. These are absolute voltages with respect to device ground pin and include all overshoots due to system and/or tester noise.
Do not attempt to test these values without suitable equipment.
*
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
the device at these or any other conditions above
those indicated in the operational sections of this
specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of
time may affect device reliability.
PINS CS1/
CS2 CS3 V
CC
OUTPUTS
MODE V
PP
Read V
ILVIHVIHVCC
D
OUT
Output Disable V
IH
XXVCCHigh Z
Output Disable X V
IL
XVCCHigh Z
Program V
PP
XXVCCD
IN
Program Verify V
ILVIHVIHVCC
D
OUT
Output Disable X X VILV
CC
High Z
MODE SELECTION
WS57C191C/291C
2-9
AC READ CHARACTERISTICS
Over Operating Range. (See Above)
PARAMETER SYMBOL
191C/291C-25 191C/291C-35 191C/291C-45 191C/291C-55
UNITS
MIN MAX MIN MAX MIN MAX MIN MAX
Address to Output Delay t
ACC
25 35 45 55
CS to Output Delay t
CS
12 20 20 20
ns
Output Disable to
Output Float
*
t
DF
12 20 20 20
Address to Output Hold t
OH
0000
*Sampled, Not 100% Tested
AC READ TIMING DIAGRAM
VALID
ADDRESSES
OUTPUTS
t
ACC
t
OH
t
CS
t
DF
VALID
CS
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