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M87C257C Datasheet(PDF) 5 Page - STMicroelectronics

Part # M87C257C
Description  ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM
Download  13 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M87C257C Datasheet(HTML) 5 Page - STMicroelectronics

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background image
Symbol
Parameter
Test Condition
Min
Max
Unit
ILI
Input Leakage Current
0V
≤ VIN ≤ VCC
±10
µA
ILO
Output Leakage Current
0V
≤ VOUT ≤ VCC
±10
µA
ICC
Supply Current
E = VIL, G = VIL,
IOUT = 0mA, f = 5MHz
30
mA
ICC1
Supply Current
(Standby) TTL
E = VIH, ASVPP = VIH, Address Switching
10
mA
E = VIH, ASVPP = VIL, Address Stable
1
mA
ICC2
Supply Current (Standby)
CMOS
E
≥ VCC – 0.2V, ASVPP ≥ VCC – 0.2V,
Address Switching
6mA
E
≥ VCC – 0.2V, ASVPP = VSS,
Address Stable
100
µA
IPP
Program Current
VPP = VCC
100
µA
VIL
Input Low Voltage
–0.3
0.8
V
VIH
(2)
Input High Voltage
2
VCC + 1
V
VOL
Output Low Voltage
IOL = 2.1mA
0.4
V
VOH
Output High Voltage
IOH = –1mA
VCC – 0.8V
V
Notes: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Maximum DC voltage on Output is VCC +0.5V.
Table 7. Read Mode DC Characteristics (1)
(TA = 0 to 70
°C, –40 to 85°C, –40 to 105°C or –40 to 125°C; VCC = 5V ± 5% or 5V ± 10%; VPP = VCC)
Symbol
Alt
Parameter
Test
Condition
M87C257
Unit
-45
(3)
-60
-70
-80
Min Max Min Max Min Max Min Max
tAVQV
tACC
Address Valid to
Output Valid
E = VIL, G = VIL
45
60
70
80
ns
tAVASL
tAL
Address Valid to
Address Strobe Low
7777
ns
tASHASL
tLL
Address Strobe High
to Address Strobe Low
35
35
35
35
ns
tASLAX
tLA
Address Strobe Low to
Address Transition
20
20
20
20
ns
tASLGL
tLOE
Address Strobe Low to
Output Enable Low
20
20
20
20
ns
tELQV
tCE
Chip Enable Low to
Output Valid
G = VIL
45
60
70
80
ns
tGLQV
tOE
Output Enable Low to
Output Valid
E = VIL
25
30
35
40
ns
tEHQZ
(2)
tDF
Chip Enable High to
Output Hi-Z
G = VIL
025
0
30
030
0
40
ns
tGHQZ
(2)
tDF
Output Enable High to
Output Hi-Z
E = VIL
025
0
30
030
0
40
ns
tAXQX
tOH
Address Transition to
Output Transition
E = VIL,
G = VIL
0000
ns
Notes: 1. VCC must be applied simultaneously with or before VPP and removed simultaneously or after VPP.
2. Sampled only, not 100% tested.
3. In case of 45ns speed see High Speed AC measurement conditions.
Table 8A. Read Mode AC Characteristics (1)
(TA = 0 to 70
°C, –40 to 85°C, –40 to 105°C or –40 to 125°C; VCC = 5V ± 5% or 5V ± 10%; VPP = VCC)
5/13
M87C257


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