參數(shù)資料
型號(hào): AT27C400
廠商: Atmel Corp.
英文描述: 4-Megabit 256K x 16 or 512K x 8 OTP EPROM
中文描述: 4兆位256K × 16或512K × 8檢察官辦公室存儲(chǔ)器
文件頁(yè)數(shù): 8/10頁(yè)
文件大?。?/td> 184K
代理商: AT27C400
AT27C400
8
AC Programming Characteristics
TA = 25
±
5°C, V
CC
= 6.5
±
0.25V, V
PP
= 13.0
±
0.25V
Notes:
1.
2.
V
CC
must be applied simultaneously or before V
PP
and removed simultaneously or after V
PP
.
This parameter is only sampled and is not 100%
tested. Ouput Float is defined as the point where data is no longer driven — see timing diagram.
Program Pulse width tolerance is 50
μ
sec
±
5%.
3.
Symbol Parameter
Test Conditions
(1)
Limits
Units
Min
Max
t
AS
t
OES
t
DS
t
AH
t
DH
Address Setup Time
Input Rise and Fall Times
(10% to 90%) 20ns
Input Pulse Levels
0.45V to 2.4V
Input Timing Reference Level
0.8V to 2.0V
Output Timing Reference Level
0.8V to 2.0V
2
μ
s
OE Setup Time
2
μ
s
Data Setup Time
2
μ
s
Address Hold Time
0
μ
s
Data Hold Time
2
μ
s
t
DFP
OE High to
Output Float Delay
(2)
0
130
ns
t
VPS
t
VCS
t
PW
t
OE
V
PP
Setup Time
V
CC
Setup Time
CE Program Pulse Width
(3)
2
μ
s
2
μ
s
47.5
52.5
μ
s
Data Valid from OE
150
ns
t
PRT
BYTE/V
PP
Pulse Rise Time
During Programming
50
ns
Atmel’s 27C400 Integrated Product Identification Code
Codes
Pins
Hex
Data
A0
O15
O14
O13
O12
O11
O10
O9
O8
O7
O6
O5
O4
O3
O2
O1
O0
Manufacturer
0
0
0
0
1
1
1
1
0
1E1E
Device Type
1
1
1
1
1
0
1
0
0
F4F4
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PDF描述
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