IA8237 Datasheet, PDF (1/4 Pages) InnovASIC, Inc – Programmable DMA Controller

IA8237
Programmable DMA Controller
Page 1 of 4
Advanced Information Sheet
FEATURES
• Form, Fit, and Function Compatible with the Intel^® 8237A and Harris^©
82C37A
• Packaging options available: 40 Pin Plastic Dip or 44 Pin Plastic Leaded
Chip Carrier
• Static Read/Write or Handshaking Modes
• Direct Bit Set/Reset Capability
• Memory-to-Memory Transfers
The IA8237 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
IOR_n
IOW_n
MEMR_n
MEMW_n
N. C.
READY
HLDA
ADSTB
AEN
HRQ
CS_n
CLK
RESET
DACK2
DACK3
DREQ3
DREQ2
DREQ1
DREQ0
VSS
(1) _{IA8237 (40)}
(2) _{40 Pin DIP (39)}
(3)
(38)
(4)
(37)
(5)
(36)
(6)
(35)
(7)
(34)
(8)
(33)
(9)
(32)
(10)
(31)
(11)
(30)
(12)
(29)
(13)
(28)
(14)
(27)
(15)
(26)
(16)
(25)
(17)
(24)
(18)
(23)
(19)
(22)
(20)
(21)
Package Pinout
A7
A6
A5
A4
EOP_n
A3
N. C.
(7)
A2
N. C.
(8)
A1
HLDA
(9)
A0
ADSTB
(10)
VCC
AEN
(11)
DB0
DB1
HRQ
(12)
CS_n
(13)
DB2
CLK
(14)
DB3
RESET
(15)
DB4
DACK2
(16)
DACK0
N. C.
(17)
DACK1
DB5
DB6
DB7
IA8237
44 Pin LCC
(39)
A3
(38)
A2
(37)
A1
(36) A0
(35)
VCC
(34)
DB0
(33)
DB1
(32) DB2
(31) DB3
(30) DB4
(29) N. C.
Copyright © 1999, InnovASIC Inc.
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