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參數(shù)資料
| 型號(hào)： | IA8255 |
| 廠商： | Innovasic Semiconductor |
| 英文描述： | Programmable Peripheral Interface Adapter |
| 中文描述： | 可編程外圍接口適配器 |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大?。?/td> | 49K |
| 代理商： | IA8255 |
Page 1 of 4
I
A8255
Programmable Peripheral Interface Adapter
Advanced Information
Sheet
FEATURES
Form, Fit, and Function Compatible with the Intel
a
8255A and Harris
82C55A
Packaging options available: 40 Pin Plastic DIP or 44 Pin Plastic Leaded
Chip Carrier
24 Programmable Input/Outputs
Static Read/Write or Handshaking Modes
Direct Bit Set/Reset Capability
High Speed, No “Wait State” Operation
Copyright
1999, InnovASIC Inc.
Customer SpecficIC Soutions
The IA8255 uses
innov
ASIC
’s innovative new
f
3
Program
to provide industry with parts that
other vendors have declared obsolete. By specifying parts through this program a customer is
assured of never having a component become obsolete again. This advanced information sheet
assumes the original part has been designed in, and so provides a summary of capabilities only. For
new designs contact
innov
ASIC
for more detailed information.
Intel is a registered trademark of Intel Corporation
Harris is a copyright trademark of Harris Corporation
Package Pinout
(6)
(1)
(2)
(3)
(4)
(5)
(7)
(8)
(9)
A0
(10)
PC7
(11)
PC6
(12)
PC5
(13)
PC4
(14)
40 Pin DIP
IA8255
D2
D3
D4
D5
(20)
PB2
(15)
PC1
(16)
PC2
(17)
PC3
(18)
PB0
(19)
PB1
(21)
(22)
(23)
(24)
PB4
PB3
(40)
(39)
(38)
(37)
(36)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
(28)
(27)
(26)
(25)
PC0
PB6
PB5
VCC
PB7
D6
D7
D0
D1
WR_n
RESET
PA6
PA7
PA4
PA5
CS_n
PA3
PA2
PA1
PA0
RD_n
GND
A1
P
P
P
P
W
P
N
P
P
P
P
P
P
44 Pin LCC
IA8255
(12)
N. C.
(7)
CS_n
(8)
GND
(9)
A1
(10)
A0
(11)
PC7
(13)
PC6
(14)
PC5
(15)
PC4
(16)
PC0
(17)
PC1
RESET
D4
N. C.
D3
D1
D0
P
(
(
(
(
(
(
(
(
(
(
(
P
R
(34)
(39)
(38)
(37)
(36)
(35)
(33)
(32)
(31)
(30)
(29)
(
(
(
(
(
(
(
(
(
(
(
P
P
P
P
N
P
VCC
D7
D6
D5
D2
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