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NTE2732A Datasheet, PDF (4/6 Pages) NTE Electronics – Integrated Circuit 32K (4K x 8) NMOS UV Erasable PROM
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Programming Operation: (TA = +25°C ± 5°C, VCC = 5V ±5%, VPP = 21V ± 0.5V, Note 8, Note 9)
DC and AC Operating Characteristics:
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Input Current (All Inputs)
Input Low Level
Input High Level
Output Low Voltage During Verify
Output High Voltage During Verify
VCC Supply Current (Active)
VPP Supply Current
ILI
VIL
VIH
VOL
VOH
ICC2
IPP
VIN = VIL or VIH
IOL = 2.1mA
IOH = –400µA
CE = VIL, OE = VPP
–
–
–0.1 –
2.0 –
–
–
2.4 –
– 70
–
–
10
µA
0.8
V
VCC+1 V
0.45
V
–
V
125 mA
30
mA
Note 8. VCC must be applied simultaneously with or before VPP and removed simultaneously with
or after VPP. The NTE2732A must not be inserted into or removed from a board with VPP
at 21 ± 0.5V or damage may occur to the device.
Note 9. The maximum allowable voltage which may be applied to the VPP pin during programming
is +22V. Care must be taken when switching the VPP supply to prevent overshoot exceeding
this 22V maximum specification.
AC Characteristics:
Parameter
Address Set Up Time
OE Set Up Time
Data Set Up Time
Address Hold Time
Data Hold Time
Chip Enable to Output Float Delay
Data Valid from CE
CE Pulse Width During Programming
OE Pulse Rise Time During Programming
VPP Recovery Time
Programming Waveforms:
Symbol
tAS
tOES
tDS
tAH
tDH
tDF
tDV
tPW
tPRT
tVR
Test Conditions
CE = VIL, OE = VIL
Min Typ Max Unit
2
–
–
µs
2
–
–
µs
2
–
–
µs
0
–
–
µs
2
–
–
µs
0
–
130 ns
–
–
1
µs
45 50
55
ms
50 –
2
–
–
ns
–
µs
ADRESSES
PROGRAM
ADDRESSS N
PROGRAM VERIFY
DATA
tAS
(Note 12)
DATA IN STABLE
ADD N
tDS
(Note 12)
tDH
(Note 12)
Hi Z
tDV
(Note 11)
DATA OUT VALID
ADD N
tDF (0.13) Max
VPP
OE/VPP
VIL
tPRT
(0.05)
tOES
tPW
tOEH
(Note 12) (45ms) (Note 12)
tVR
(Note 12)
tAH (0)
VIH
CE
VIL
Note 11. All times shown in ( ) are minimum and in µs unless otherwise specified.
Note12. The input timing reference level is 1V for VIL and 2V for VIH.
Note13. tOE and TDF are characteristics of the device but must be accommodate by the programmer.
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