參數(shù)資料
型號(hào): 27C256-12IVS
廠商: Microchip Technology Inc.
英文描述: 256K (32K x 8) CMOS EPROM
中文描述: 256K(32K的× 8)的CMOS存儲(chǔ)器
文件頁(yè)數(shù): 9/12頁(yè)
文件大?。?/td> 182K
代理商: 27C256-12IVS
Mode Selection
The modes of operation of NM27C256 listed in Table I. A single 5V power supply is required in the read mode. All inputs are TTL
levels except for V
PP
and A9 for device signature.
TABLE I. Modes Selection
Pins
CE/PGM
OE
V
PP
V
CC
Outputs
Mode
Read
V
IL
V
IL
V
CC
5.0V
D
OUT
Output Disable
X
V
IH
V
CC
5.0V
High-Z
(Note 1)
Standby
V
IH
X
V
CC
5.0V
High-Z
Programming
V
IL
V
IH
12.75V
6.25V
D
IN
Program Verify
V
IH
V
IL
12.75V
6.25V
D
OUT
Program Inhibit
V
IH
V
IH
12.75V
6.25V
High-Z
Note 1:
X can be V
IL
or V
IH
.
TABLE II. Manufacturer’s Identification Code
Pins
A0
(10)
A9
(24)
O7
(19)
O6
(18)
O5
(17)
O4
(16)
O3
(15)
O2
(13)
O1
(12)
O0
(11)
Hex
Data
Manufacturer Code
V
IL
12V
1
0
0
0
1
1
1
1
8F
Device Code
V
IH
12V
0
0
0
0
0
1
0
0
04
9
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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27C256-12SO 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:256K (32K x 8) CMOS EPROM
27C256-12TS 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:256K (32K x 8) CMOS EPROM