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參數(shù)資料
| 型號(hào)： | 27C256R |
| 廠商： | Atmel Corp. |
| 英文描述： | 256K 32K x 8 OTP CMOS EPROM |
| 中文描述： | 256K 32K的× 8檢察官辦公室的CMOS存儲(chǔ)器 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大小： | 251K |
| 代理商： | 27C256R |
AC Characteristics for Read Operation
AT27C256R
-45
-55
-70
-90
-12
-15
Symbol
Parameter
Address to
Output Delay
CE to Output Delay
Condition
CE = OE
= V
IL
OE = V
IL
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
Units
t
ACC
(3)
45
55
70
90
120
150
ns
t
CE
(2)
t
OE (2, 3)
45
20
55
25
70
30
90
30
120
35
150
40
ns
ns
OE to Output Delay
OE or CE High to
Output Float, whichever occurred first
Output Hold from
Address, CE or OE,
whichever occurred first
CE = V
IL
t
DF
(4, 5)
20
20
25
25
30
35
ns
t
OH
7
7
7
0
0
0
ns
Notes:
2, 3, 4, 5. - see AC Waveforms for Read Operation.
DC and AC Operating Conditions for Read Operation
AT27C256R
-45
-55
-70
-90
-12
-15
Operating
Temp. (Case)
Com.
Ind. -40°C - 85°C
5V
±
10%
0°C - 70°C
0°C - 70°C
-40°C - 85°C
5V
±
10%
0°C - 70°C
-40°C - 85°C
5V
±
10%
0°C - 70°C
-40°C - 85°C
5V
±
10%
0°C - 70°C
-40°C - 85°C
5V
±
10%
0°C - 70°C
-40°C - 85°C
5V
±
10%
V
CC
Supply
DC and Operating Characteristics for Read Operation
Symbol
I
LI
I
LO
I
PP1
(
2
)
Parameter
Input Load Current
Output Leakage Current
V
PP
(
1
)
Read/Standby Current V
PP
= V
CC
Condition
V
IN
= 0V to V
CC
V
OUT
= 0V to V
CC
Min
Max
±
1
±
5
10
Units
μ
A
μ
A
μ
A
μ
A
I
SB
V
CC
(
1
)
Standby Current
I
SB1
(CMOS), CE = V
CC
±
0.3V
I
SB2
(TTL), CE = 2.0 to V
CC
+ 0.5V
f = 5 MHz, I
OUT
= 0 mA,
CE = V
IL
100
1
mA
I
CC
V
CC
Active Current
20
mA
V
IL
V
IH
V
OL
V
OH
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
-0.6
2.0
0.8
V
V
V
V
V
CC
+ 0.5
0.4
I
OL
= 2.1 mA
I
OH
= -400
μ
A
2.4
Notes: 1. V
CC
must be applied simultaneously or before V
PP
,
and removed simultaneously or after V
PP
.
2. V
PP
may be connected directly to V
CC
, except during program-
ming. The supply current would then be the sum of I
CC
and I
PP
.
3-128
AT27C256R
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PDF描述 |
|---|---|
| 27C256 | 262,144-Bit (32K x 8) High Performance CMOS EPROM |
| 27C256-90ITS | 256K (32K x 8) CMOS EPROM |
| 27C256-10ITS | 256K (32K x 8) CMOS EPROM |
| 27C256-20ITS | 256K (32K x 8) CMOS EPROM |
| 27C256-15EVS | 256K (32K x 8) CMOS EPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 27C256R-45RI | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 27C256R70PC | 制造商: 功能描述: 制造商:undefined 功能描述: |
| 27C256RPDB-15 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
| 27C256RPDB-17 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
| 27C256RPDB-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 EPROM |
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