M27V160-100B1TR 데이터 시트보기 (PDF) - STMicroelectronics
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M27V160-100B1TR Datasheet PDF : 15 Pages
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M27V160
Table 9. Programming Mode DC Characteristics (1)
(TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.5V ± 0.25V)
Symbol
Parameter
Test Conditio n
Min
Max
Unit
ILI
Input Leakage Current
0 ≤ VIN ≤ VCC
±1
µA
ICC
Supply Current
50
mA
IPP
Program Current
E = VIL
50
mA
VIL
Input Low Voltage
–0.3
0.8
V
VIH
Input High Voltage
2.4
VCC + 0.5
V
VOL
Output Low Voltage
IOL = 2.1mA
0.4
V
VOH Output High Voltage TTL
IOH = –2.5mA
3.6
V
VID
A9 Voltage
11.5
12.5
V
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
Table 10. Programming Mode AC Characteristics (1)
(TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.5V ± 0.25V)
Symbol
Alt
Parameter
Test Condition
Min
tAVEL
tAS Address Valid to Chip Enable Low
2
tQVEL
tDS Input Valid to Chip Enable Low
2
tVPHAV
tVPS VPP High to Address Valid
2
tVCHAV
tVCS VCC High to Address Valid
2
tELEH
tPW Chip Enable Program Pulse Width
45
tEHQX
tDH Chip Enable High to Input Transition
2
tQXGL
tOES Input Transition to Output Enable Low
2
tGLQV
tOE Output Enable Low to Output Valid
tGHQZ (2)
tDFP Output Enable High to Output Hi-Z
0
tGHAX
tAH
Output Enable High to Address
Transition
0
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
Max Unit
µs
µs
µs
µs
55
µs
µs
µs
120
ns
130
ns
ns
Programming
The M27V160 has been designed to be fully com-
patible with the M27C160. As a result the
M27V160 can be programmed as the M27C160
on the same programming equipments applying
12.75V on VPP and 6.25V on VCC by the use of the
same PRESTO III algorithm. When delivered (and
after each erasure for UV EPROM), all bits of the
M27V160 are in the ’1’ state. Data is introduced by
selectively programming ’0’s to the desired bit lo-
cations. Although only ’0’s will be programmed,
both ’1’s and ’0’s can be present in the data word.
The only way to change a ’0’ to a ’1’ is by die expo-
sure to ultraviolet light (UV EPROM). The
M27V160 is in the programming mode when Vpp
input is at 12.5V, G is at VIH and E is pulsed to VIL.
The data to be programmed is applied to 16 bits in
parallel to the data output pins. The levels required
for the address and data inputs are TTL. VCC is
specified to be 6.25V ± 0.25V.
8/15
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