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參數(shù)資料
| 型號(hào)： | AM27C256-255PC |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | 256 Kilobit (32,768 x 8-Bit) CMOS EPROM |
| 中文描述： | 256千比特（32,768 × 8位）的CMOS存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 90K |
| 代理商： | AM27C256-255PC |
AMD
2-41
Am27C256
CAPACITANCE
Parameter
Symbol
Parameter
Description
Test
Conditions
Typ
Max
Typ
Max
Typ
Max
Typ
Max
Unit
C
IN
Input Capacitance
V
IN
= 0
8
12
8
12
6
10
10
12
pF
C
OUT
Output Capacitance
V
OUT
= 0
8
12
8
12
8
10
12
14
pF
Notes:
1. This parameter is only sampled and not 100% tested.
2. T
A
= +25
°
C, f = 1 MHz.
CDV028
PL 032
PD 028
TS 032
SWITCHING CHARACTERISTICS over operating range unless otherwise specified
(Notes 1, 3 and 4)
Parameter
Description
Test
Conditions
JEDEC
Standard
-55
-70
-90
-120
-150
-200
-255
Unit
t
AVQV
t
ACC
Address to
Output Delay
CE
=
OE
=
V
IL
Min
Max
–
–
–
–
–
–
–
55
70
90
120
150
200
250
ns
t
ELQV
t
CE
Chip Enable to
Output Delay
OE
= V
IL
Min
Max
–
–
–
–
–
–
–
55
70
90
120
150
200
250
ns
t
GLQV
t
OE
Output Enable to
Output Delay
CE
= V
IL
Min
Max
–
–
–
–
–
–
–
35
40
40
50
50
50
50
ns
t
EHQZ,
t
GHQZ
t
DF
Min
Max
–
–
–
–
–
–
–
(Note 2)
25
25
25
30
30
30
30
ns
t
AXQX
t
OH
Min
Max
0
–
0
–
0
–
0
–
0
–
0
–
0
–
ns
Parameter
Symbols
Am27C256
Notes:
1. V
CC
must be applied simultaneously or before V
PP
, and removed simultaneously or after V
PP
.
2. This parameter is only sampled and not 100% tested.
3.
Caution:
The Am27C256 must not be removed from (or inserted into) a socket or board when V
PP
or V
CC
is applied.
4. For the -55 and -70:
Output Load: 1 TTL gate and C
L
= 30 pF
Input Rise and Fall Times: 20 ns
Input Pulse Levels: 0 V to 3 V
Timing Measurement Reference Level: 1.5 V for inputs and outputs
For all other versions:
Output Load: 1 TTL gate and C
L
= 100 pF
Input Rise and Fall Times: 20 ns
Input Pulse Levels: 0.45 V to 2.4 V
Timing Measurement Reference Level: 0.8 V and 2 V inputs and outputs
Chip Enable HIGH or
Output Enable HIGH,
whichever comes
first, to Output Float
Output Hold from
Addresses,
CE
,
or
OE
, whichever
occurred first
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| AM27C256-255JC | 256 Kilobit (32 K x 8-Bit) CMOS EPRO |
| AM27C256-255JI | 256 Kilobit (32 K x 8-Bit) CMOS EPRO |
| AM27C256-255PC | 256 Kilobit (32 K x 8-Bit) CMOS EPRO |
| AM27C256-255PI | 256 Kilobit (32 K x 8-Bit) CMOS EPRO |
| AM27C256-55JC | 256 Kilobit (32 K x 8-Bit) CMOS EPRO |
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| AM27C256-45DI | 制造商:Rochester Electronics LLC 功能描述: |
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| AM27C256-55PC | 制造商:Rochester Electronics LLC 功能描述: |
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