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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
Programmable Word Length, Stop Bits, and Parity
Full Duplex Operation
Programmable Baud Rate Generator
16
-
Division of any input clock by 1 to (2 –1)
-
Generates Internal 16 x clock
Programmable Serial-Interface
-
5-, 6-, 7- or 8-bit characters
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Even, Odd, or No-Parity Bit Generation and Detection
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1-, 1 �½-, or 2-Stop Bit Generation
-
Baud Generation of DC to 56k
Prioritized Interrupt Control
Internal Diagnostic/Loopback Capabilities
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The IA16450 uses
innovASIC’
innovative new
f
3
Program
to provide industry with parts that
s
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
DCD_n
DSR_n
(41)
VCC
(40)
(39)
(38)
(37)
(36)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
(28)
(27)
(26)
(25)
(24)
(23)
(22)
(21)
VCC
RI_n
DCD_n
(44)
(43)
(42)
DSR_n
CTS_n
MR
OUT1_n
DTR_n
RTS_n
OUT2_n
INTR
N. C.
A0
A1
A2
ADS_n
CSOUT
DDIS
RD
RD_n
CSOUT
ADS_n
WR_n
RD_n
WR
VSS
XOUT
N. C.
RD
DDIS
XIN
D5
D6
D7
RCLK
SIN
N. C.
SOUT
CS0
CS1
CS2_n
BAUDOUT_n
(40)
(6)
(5)
(4)
(3)
(2)
(1)
RI_n
D0
D1
D2
D3
D4
D5
D6
D7
RCLK
SIN
SOUT
CS0
CS1
CS2_n
BAUDOUT_n
XIN
XOUT
WR_n
WR
VSS
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
CTS_n
N. C.
D4
D3
D2
D1
40 Pin DIP
D0
IA16450
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(39)
(38)
MR
OUT1_n
DTR_n
RTS_n
OUT2_n
N. C.
INTR
N. C.
A0
A1
A2
IA16450
44 Pin LCC
(37)
(36)
(35)
(34)
(33)
(32)
(31)
(30)
(29)
Copyright
©
1999, InnovASIC Inc.
Customer Specific IC Solutions
INNOVASIC [ INNOVASIC, INC ]
