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WS57C191C Datasheet(PDF) 6 Page - STMicroelectronics

Part # WS57C191C
Description  HIGH SPEED 2K x 8 CMOS PROM/RPROM
PDF  7 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

WS57C191C Datasheet(HTML) 6 Page - STMicroelectronics

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PROGRAMMING INFORMATION
DC CHARACTERISTICS (T
A = 25 ± 5°C, VCC = 6.25 V ± 0.25 V, VPP = 12.75 ± 0.25 V)
SYMBOLS
PARAMETER
MIN
MAX
UNITS
ILI
Input Leakage Current
–10
10
µA
(VIN = VCC or Gnd)
IPP
VPP Supply Current During
60
mA
Programming Pulse
ICC
VCC Supply Current
25
mA
VOL
Output Low Voltage During Verify
0.45
V
(IOL = 16 mA)
VOH
Output High Voltage During Verify
2.4
V
(IOH = –4 mA)
WS57C191C/291C
2-12
SYMBOLS
PARAMETER
MIN
TYP
MAX
UNITS
tAS
Address Setup Time
2
µs
tDF
Chip Disable Setup Time
30
ns
tDS
Data Setup Time
2
µs
tPW
Program Pulse Width
100
200
µs
tDH
Data Hold Time
2
µs
tCS
Chip Select Delay
30
ns
tRF
VPP Rise and Fall Time
1
µs
NOTES: 8. VPP must not be greater than 13 volts including overshoot.
AC CHARACTERISTICS (T
A = 25 ± 5°C, VCC = 6.25 V ± 0.25 V, VPP = 12.75 ± 0.25 V)
PROGRAMMING WAVEFORM
ADDRESS STABLE
ADDRESSES
VIH
VIL
VPP
VIH
VIH
VIL
VIL
CS1/VPP
DATA
tAS
tDF
tDS
tPW
tDH
tCS
tRF
tRF
DATA OUT
DATA IN
DON'T CARE
CS2/CS3
VIH
VIL



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