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参数资料
| 型号： | M27C801-70B6X |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PROM |
| 英文描述： | 1M X 8 OTPROM, 70 ns, PDIP32 |
| 封装： | 0.600 INCH, PLASTIC, DIP-32 |
| 文件页数： | 14/16页 |
| 文件大小： | 153K |
| 代理商： | M27C801-70B6X |
7/16
M27C801
Table 9. Programming Mode DC Characteristics (1)
(TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V)
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
Table 10. MARGIN MODE AC Characteristics (1)
(TA = 25 °C; VCC = 6.25V ± 0.25V; VPP = 12.75V ± 0.25V)
Note: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
Symbol
Parameter
Test Condition
Min
Max
Unit
ILI
Input Leakage Current
VIL ≤ VIN ≤ VIH
±10
A
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
VCC + 0.5
V
VOL
Output Low Voltage
IOL = 2.1mA
0.4
V
VOH
Output High Voltage TTL
IOH = –1mA
3.6
V
VID
A9 Voltage
11.5
12.5
V
Symbol
Alt
Parameter
Test Condition
Min
Max
Unit
tA9HVPH
tAS9
VA9 High to VPP High
2s
tVPHEL
tVPS
VPP High to Chip Enable Low
2s
tA10HEH
tAS10
VA10 High to Chip Enable High (Set)
1s
tA10LEH
tAS10
VA10 Low to Chip Enable High (Reset)
1s
tEXA10X
tAH10
Chip Enable Transition to VA10 Transition
1s
tEXVPX
tVPH
Chip Enable Transition to VPP Transition
2s
tVPXA9X
tAH9
VPP Transition to VA9 Transition
2s
Programming
When delivered (and after each erasure for UV
EPROM), all bits of the M27C801 are in the ’1’
state. Data is introduced by selectively program-
ming ’0’s into the desired bit locations. Although
only ’0’ 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 exposure to ultraviolet
light (UV EPROM). The M27C801 is in the pro-
gramming mode when VPP input is at 12.75V and
E is pulsed to VIL. The data to be programmed is
applied to 8 bits in parallel to the data output pins.
The levels required for the address and data in-
puts are TTL. VCC is specified to be 6.25V ±
0.25V.
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