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WS57C49C-25S PDF даташит

Спецификация WS57C49C-25S изготовлена ​​​​«STMicroelectronics» и имеет функцию, называемую «HIGH SPEED 8K x 8 CMOS PROM/RPROM».

Детали детали

Номер произв WS57C49C-25S
Описание HIGH SPEED 8K x 8 CMOS PROM/RPROM
Производители STMicroelectronics
логотип STMicroelectronics логотип 

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WS57C49C-25S Даташит, Описание, Даташиты
WS57C49C
HIGH SPEED 8K x 8 CMOS PROM/RPROM
KEY FEATURES
Ultra-Fast Access Time
— tACC = 25 ns
— tCS = 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.
BLOCK DIAGRAM
8
A5 - A12
ROW
ADDRESSES
ROW
DECODER
EPROM ARRAY
65,536 BITS
5
A0 - A4
COLUMN
ADDRESSES
COLUMN
DECODER
SENSE
AMPLIFIERS
CS1/ VPP
8
OUTPUTS
PIN CONFIGURATION
TOP VIEW
Chip Carrier
CERDIP/Plastic DIP
Flatpack
NC
A5 A6 A7 VCC A8 A9
A7 1
A4
4
5
3
2
1
28 27 26
25
A10
A6 2
A5 3
A3
A2
A1
A0
NC
O0
6 24
7 23
8 22
9 21
10 20
11 19
12 13 14 15 16 17 18
CS1/VPP
A11
A12
NC
A4
A3
A2
A1
4
5
6
7
O7
O6
A0 8
O0 9
O1 10
O2 11
O1 O2 NC O3 O4 O5
GND
GND 12
24 VCC
23 A8
22 A9
21 A10
20 CS1/VPP
19 A11
18 A12
17 O7
16 O6
15 O5
14 O4
13 O3
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
Return to Main Menu
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WS57C49C-25S Даташит, Описание, Даташиты
WS57C49C
ABSOLUTE MAXIMUM RATINGS*
Storage Temperature............................–65° to + 150°C
Voltage on any Pin with
Respect to Ground ....................................–0.6V to +7V
VPP with Respect to Ground...................–0.6V to + 13V
ESD Protection ..................................................>2000V
*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.
MODE SELECTION
PINS
MODE
CS1/VPP
Read
Output
Disable
VIL
VIH
Program
Program
Verify
VPP
VIL
VCC
VCC
VCC
VCC
VCC
OUTPUTS
DOUT
High Z
DI N
DOUT
OPERATING RANGE
RANGE
TEMPERATURE
Commercial
0°C to +70°C
Industrial
–40°C to +85°C
Military
–55°C to +125°C
VCC
+5V ± 10%
+5V ± 10%
+5V ± 10%
DC READ CHARACTERISTICS Over Operating Range. (See Above)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN MAX UNITS
VIL Input Low Voltage (Note 3)
–0.1 0.8
V
VIH Input High Voltage (Note 3)
2.0 VCC + 0.3
V
VOL Output Low Voltage IOL = 16 mA
0.4 V
VOH Output High Voltage IOH = –4 mA
2.4 V
ICC1
VCC Active Current
(CMOS)
VCC = 5.5 V, f = 0 MHz (Note 1), Comm'l
Output Not Loaded
Industrial
Add 3 mA/MHz for AC Operation Military
30 mA
35 mA
35 mA
ICC2
VCC Active Current
(TTL)
VCC = 5.5 V, f = 0 MHz (Note 2), Comm'l
Output Not Loaded
Industrial
Add 3 mA/MHz for AC Operation Military
40 mA
50 mA
50 mA
ILI Input Leakage
Current
VIN = 5.5V or Gnd
ILO Output Leakage
Current
VOUT = 5.5 V or Gnd
–10 10 µA
–10 10 µA
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.
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WS57C49C-25S Даташит, Описание, Даташиты
WS57C49C
AC READ CHARACTERISTICS Over Operating Range. (See Above)
PARAMETER
SYMBOL 57C49C-25 57C49C-35 57C49C-45 57C49C-55 57C49C-70 UNITS
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
Address to Output Delay
CS1 to Output Delay
Output Disable to
Output Float*
Address to Output Hold
*Sampled, Not 100% Tested.
tACC
tCS
tDF
tOH
25 35 45 55 70
12 20 25 25 25
12 25 25 25 25
0 0000
ns
AC READ TIMING DIAGRAM
ADDRESSES
CS
OUTPUTS
VALID
tACC
tOH
tCS
VALID
tDF
2-41










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