器件名称: IA8255-PDW40I
功能描述: Programmable Peripheral Interface Adapter
文件大小: 49.17KB 共4页
简 介:Page 1 of 4
IA8255 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
N. C. PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA2 PA1 PA0 RD_n CS_n GND A1 A0 PC7 PC6 PC5 PC4 PC0 PC1 PC2 PC3 PB0 PB1 PB2 (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) PA7 (41)
IA8255 40 Pin DIP
(39) (38) (37) (36) (35) (34) (33) (32) (31) (30) (29) (28) (27) (26) (25) (24) (23) (22) (21)
PA5 PA6
(6)
(5)
(4)
(3)
(2)
(1)
(44)
(43)
(42)
WR_n RESET D0 D1 D2 D3 D4 D5 D6 D7 VCC PB7 PB6
(40)
PA7 CS_n GND A1 A0 PC7 N. C. PC6 PC5 PC4 PC0 PC1
RD_n
PA3
(1)
(40)
PA4
WR_n
(7) (8) (9) (10) (11……
