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NMC27C32B View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
NMC27C32B 32,768-Bit (4096 x 8) CMOS EPROM National-Semiconductor
National ->Texas Instruments National-Semiconductor
NMC27C32B Datasheet PDF : 10 Pages
1 2 3 4 5 6 7 8 9 10
Programming Characteristics (Notes 1 2 3 4)
Symbol
tAS
tOES
tDS
tVCS
tAH
tDH
tCF
tPW
tOEH
tDV
tPRT
tVR
IPP
ICC
TA
VCC
VPP
tFR
VIL
VIH
tIN
tOUT
Parameter
Address Setup Time
OE Setup Time
Data Setup Time
VCC Setup Time
Address Hold Time
Data Hold Time
Chip Enable to Output Float Delay
Program Pulse Width
OE Hold Time
Data Valid from CE
OE Pulse Rise Time
During Programming
VPP Recovery Time
VPP Supply Current During
Programming Pulse
VCC Supply Current
Temperature Ambient
Power Supply Voltage
Programming Supply Voltage
Input Rise Fall Time
Input Low Voltage
Input High Voltage
Input Timing Reference Voltage
Output Timing Reference Voltage
Conditions
OE e VIL
OE e VIL
CE e VIL
OE e VPP
Min
1
1
1
1
0
1
0
95
1
50
1
20
60
12 5
5
24
08
08
Typ
100
25
6 25
12 75
00
40
Max
60
105
250
30
10
30
65
13 0
0 45
20
20
Units
ms
ms
ms
ms
ms
ms
ns
ms
ms
ns
ns
ms
mA
mA
C
V
V
ns
V
V
V
V
Programming Waveforms
TL D 8827 – 4
Note 1 National’s standard product warranty applies only to devices programmed to specifications described herein
Note 2 VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP The EPROM must not be inserted into or removed from a
board with voltage applied to VPP or VCC
Note 3 The maximum absolute allowable voltage which may be applied to the VPP pin during programming is 14V Care must be taken when switching the VPP
supply to prevent any overshoot from exceeding this 14V maximum specification At least a 0 1 mF capacitor is required across VCC to GND to suppress spurious
voltage transients which may damage the device
Note 4 Programming and program verify are tested with the fast Program Algorithm at typical power supply voltages and timings
5
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