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参数资料
| 型号： | M87C257-20XF7X |
| 厂商： | 意法半导体 |
| 元件分类： | DRAM |
| 英文描述： | ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM |
| 中文描述： | 地址锁存256K 32K的× 8紫外线EPROM和检察官办公室存储器 |
| 文件页数： | 6/13页 |
| 文件大小： | 143K |
| 代理商： | M87C257-20XF7X |
Symbol
Alt
Parameter
Test
Condition
M87C257
-10
Unit
-90
-12
-15/-20
Min Max Min Max Min Max Min Max
t
AVQV
t
ACC
Address Valid to
Output Valid
Address Valid to
Address Strobe Low
E = V
IL
, G = V
IL
90
100
120
150
ns
t
AVASL
t
AL
7
7
7
7
ns
t
ASHASL
t
LL
Address Strobe High
to Address Strobe Low
35
35
35
35
ns
t
ASLAX
t
LA
Address Strobe Low to
Address Transition
20
20
20
20
ns
t
ASLGL
t
LOE
Address Strobe Low
to Output Enable Low
20
20
20
20
ns
t
ELQV
t
CE
Chip Enable Low to
Output Valid
G = V
IL
90
100
120
150
ns
t
GLQV
t
OE
Output Enable Low to
Output Valid
E = V
IL
40
40
50
60
ns
t
EHQZ
(2)
t
DF
Chip Enable High to
Output Hi-Z
G = V
IL
0
40
0
30
0
40
0
40
ns
t
GHQZ
(2)
t
DF
Output Enable High to
Output Hi-Z
E = V
IL
0
40
0
30
0
40
0
40
ns
t
AXQX
t
OH
Address Transition to
Output Transition
E = V
IL
, G = V
IL
0
0
0
0
ns
Notes:
1. V
must be applied simultaneously with or before V
PP
and removed simultaneously or after V
PP
.
2. Sampled only, not 100% tested.
Table 8B. Read Mode AC Characteristics
(1)
(T
A
= 0 to 70
°
C, –40 to 85
°
C, –40 to 105
°
C or –40 to 125
°
C; V
CC
= 5V
±
5% or 5V
±
10%; V
PP
= V
CC
)
AI00931
tAXQX
tEHQZ
DATA OUT
A0-A14
E
G
Q0-Q7
tASLAX
tGHQZ
tGLQV
tELQV
VALID
Hi-Z
tAVQV
tASLGL
tASHASL
tAVASL
ASVPP
Figure 5. Read Mode AC Waveforms
6/13
M87C257
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| M87C257-20XF6X | ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM |
| M87C257-20XF6TR | ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM |
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| M87C257-20XF1X | Ceramic Chip Capacitors / MIL-PRF-55681; Capacitance [nom]: 1500pF; Working Voltage (Vdc)[max]: 100V; Capacitance Tolerance: +/-10%; Dielectric: Multilayer Ceramic; Temperature Coefficient: X7R (BX); Lead Style: Surface Mount Chip; Lead Dimensions: 0805; Termination: Solder Coated SnPb; Body Dimensions: 0.080" x 0.050" x 0.055"; Container: Bag; Features: MIL-PRF-55681: M Failure Rate |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M87C257-20XFI | 制造商:STMicroelectronics 功能描述: |
| M87C257-45 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ADDRESS LATCHED 256K (32K x 8) UV EPROM and OTP EPROM |
| M87C257-45C1TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM |
| M87C257-45C1X | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM |
| M87C257-45C3TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM |
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