IA8255 Datasheet, PDF (1/4 Pages) InnovASIC, Inc – Programmable Peripheral Interface Adapter

IA8255
Page 1 of 4
Advanced Information Sheet
Programmable Peripheral Interface Adapter
FEATURES
• Form, Fit, and Function Compatible with the Intel^® 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
The IA8255 uses innovASIC’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 innovASIC for more detailed information.
Intel is a registered trademark of Intel Corporation
Harris is a copyright trademark of Harris Corporation
Package Pinout
PA3
PA2
PA1
PA0
RD_n
CS_n
GND
A1
A0
PC7
PC6
PC5
PC4
PC0
PC1
PC2
PC3
PB0
PB1
PB2
(1) _IA8255
(40)
PA4
(2) _{40 Pin DIP (39)}
PA5
(3)
(38)
PA6
(4)
(37)
PA7
(5)
(36)
WR_n
CS_n
(7)
(6)
(35)
RESET
GND
(8)
(7)
(34)
D0
A1
(9)
(8)
(33)
D1
A0
(10)
(9)
(32)
D2
PC7
(11)
(10)
(31)
D3
N. C.
(12)
(11)
(30)
D4
PC6
(13)
(12)
(29)
D5
PC5
(14)
(13)
(28)
D6
PC4
(15)
(14)
(27)
D7
PC0
(16)
(15)
(26)
VCC
PC1
(17)
(16)
(25)
PB7
(17)
(24)
PB6
(18)
(23)
PB5
(19)
(22)
PB4
(20)
(21)
PB3
IA8255
44 Pin LCC
(39)
RESET
(38)
D0
(37)
D1
(36) D2
(35)
D3
(34)
N. C.
(33)
D4
(32) D5
(31) D6
(30)
D7
(29)
VCC
Copyright © 1999, InnovASIC Inc.
Customer Specific IC Solutions