ia8255 Innovasic Semiconductor Inc., ia8255 Datasheet

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ia8255

Manufacturer Part Number
ia8255
Description
Programmable Peripheral Interface Adapter
Manufacturer
Innovasic Semiconductor Inc.
Datasheet
Programmable Peripheral Interface Adapter
FEATURES
The IA8255 uses innovASIC’s innovative new f
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
Intel is a registered trademark of Intel Corporation
Harris is a copyright trademark of Harris Corporation
IA8255
RD_n
CS_n
GND
PA3
PA2
PA1
PA0
PC7
PC6
PC5
PC4
PC0
PC1
PC2
PC3
PB0
PB1
PB2
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
A1
A0
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40 Pin DIP
innovASIC
IA8255
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for more detailed information.
Package Pinout
Copyright
PA4
PA5
PA6
PA7
WR_n
RESET
D0
D1
D2
D3
D4
D5
D6
D7
VCC
PB7
PB6
PB5
PB4
PB3
Customer Specific IC Solutions
1999, InnovASIC Inc.
CS_n
GND
N. C.
PC7
PC6
PC5
PC4
PC0
PC1
3
A1
A0
Program to provide industry with parts that
(7)
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Advanced Information
44 Pin LCC
IA8255
Page 1 of 4
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Sheet
D6
D2
D5
D7
VCC
RESET
D0
D1
D3
N. C.
D4

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ia8255 Summary of contents

Page 1

... 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 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 ...

Page 2

... IA8255 Programmable Peripheral Interface Adapter The IA8255 is a programmable peripheral interface adapter mega-function designed to be functionally equivalent to the Intel 8255A and Harris 82C55A devices. This function has 24 I/O signals programmable in two groups of 12. Three modes of operation allow the following: Basic Input/Output (Mode 0) - Port A, Port B, Port C (upper), and Port C (lower) can be independently configured as inputs or outputs to read or hold static data ...

Page 3

... IA8255 Programmable Peripheral Interface Adapter Table 1 Part Number Environmental/ Qual Level IA8255-PDW40C Commercial IA8255-PLC44C Commercial IA8255-PDW40I Industrial IA8255-PLC44I Industrial The following diagram depicts the IAXXXXX-PPPPNNNT/SP Advanced Information Qualification Levels innovASIC Product Identification Number. Special Processing Space Q = MIL-STD-883 Temperature Commercial I = Industrial M = Military ...

Page 4

... IA8255 Programmable Peripheral Interface Adapter Package Designator Table Package Type Ceramic side brazed Dual In-line Cerdip with window Ceramic leaded chip carrier Cerdip without window Ceramic leadless chip carrier PLCC Plastic DIP standard (300 mil) Plastic DIP standard (600 mil) Plastic metric quad flat pack ...

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