IA8044 Datasheet, PDF (2/49 Pages) InnovASIC, Inc – SDLC COMMUNICATIONS CONTROLLER

IA8044/IA8344
SDLC COMMUNICATIONS CONTROLLER
Data Sheet
Package Pinout
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
(RTS) P1.6
(CTS) P1.7
RST
(RXD) P3.0
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(SCLK/T1) P3.5
(WR) P3.6
(RD) P3.7
XTAL2
XTAL1
VSS
(1) _IA8X44
(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)
VCC
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
P0.3 (AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA
ALE
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
P1.5
(7)
P1.6
(8)
P1.7
(9)
RST/VPD
(10)
P3.0
(11)
N.C.
(12)
P3.1
(13)
P3.2
(14)
P3.3
(15)
P3.4
(16)
P3.5
(17)
IA8X44
44 Pin LCC
(39)
P0.4
(38)
P0.5
(37)
P0.6
(36)
P0.7
(35)
EA
(34)
N.C.
(33)
ALE
(32)
PSEN
(31)
P2.7
(30)
P2.6
(29)
P2.5
DESCRIPTION
The IA8044/IA8344 is a form, fit and function compatible part to the Intel® 8X44 SDLC
communications controller. The IA8044/IA8344 is a Fast Single-Chip 8-Bit Microcontroller with an
integrated SDLC/HDLC serial interface controller. The IA8044/IA8344 is a fully functional 8-Bit
Embedded Controller that executes all ASM51 instructions and has the same instruction set as the
Intel 80C51. The IA8044/IA8344 can access the instructions from two types of program memory,
serves software and hardware interrupts, provides an interface for serial communications and a timer
system. The IA8044/IA8344 is fully compatible with the Intel® 8X44 series. The functional block
diagram is shown below.
Copyright © 2003
innovASIC
The End of Obsolescence™
ENG210010112-00
Page 2 of 49
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