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IA16450
Preliminary Data Sheet
Universal Asynchronous Receiver/Transmitter
FEATURES
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Form, Fit, and Function Compatible with the National NS16450
Packaging options available: 40 Pin Plastic or 44 Pin Plastic Leaded Chip
Carrier
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Programmable Word Length, Stop Bits, and Parity
Full Duplex Operation
Programmable Baud Rate Generator
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Division of any input clock by 1 to (216 –1)
Generates Internal 16 x clock
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Programmable Serial-Interface
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5-, 6-, 7- or 8-bit characters
Even, Odd, or No-Parity Bit Generation and Detection
1-, 1 ½-, or 2-Stop Bit Generation
Baud Generation of DC to 56k
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Prioritized Interrupt Control
Internal Diagnostic/Loopback Capabilities
The IA16450 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.
National is a copyright trademark of National Semiconductor Corporation
Package Pinout
D0
D1
D2
D3
D4
D5
D6
(1)
VCC
(40)
(39)
(38)
(37)
(36)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
(28)
(27)
(26)
(25)
IA16450
(2)
RI_n
40 Pin DIP
(3)
DCD_n
DSR_n
CTS_n
MR
(4)
(5)
MR
D5
D6
(7)
(39)
(38)
(6)
(8)
OUT1_n
DTR_n
RTS_n
OUT2_n
N. C.
(7)
D7
(9)
OUT1_n
(37)
(36)
IA16450
(8)
RCLK
SIN
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
D7
RCLK
SIN
DTR_n
RTS_n
44 Pin LCC
(9)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
OUT2_n
INTR
N. C.
A0
N. C.
SOUT
INTR
SOUT
CS0
CS0
CS1
N. C.
A0
CS1
CS2_n
A1
CS2_n
BAUDOUT_n
A1
A2
BAUDOUT_n
XIN
A2
ADS_n
CSOUT
DDIS
RD
XOUT
WR_n
WR
(24)
(23)
(22)
(21)
VSS
RD_n
Copyright ã 1999, InnovASIC Inc.
Customer Specific IC Solutions
INNOVASIC [ INNOVASIC, INC ]
