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InnovASIC
InnovASIC

IA16450 Datasheet Preview

IA16450 Datasheet

Universal Asynchronous Receiver/Transmitter

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IA16450 pdf
IA16450
Page 1 of 10
Preliminary Data Sheet
Universal Asynchronous Receiver/Transmitter
FEATURES
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
- Division of any input clock by 1 to (216 –1)
- Generates Internal 16 x clock
Programmable Serial-Interface
- 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
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
D7
RCLK
SIN
SOUT
CS0
CS1
CS2_n
BAUDOUT_n
XIN
XOUT
WR_n
WR
VSS
(1) IA16450
(2) 40 Pin DIP
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(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
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
D5
D6
D7
RCLK
SIN
N. C.
SOUT
CS0
CS1
CS2_n
BAUDOUT_n
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
IA16450
44 Pin LCC
(39) MR
(38) OUT1_n
(37) DTR_n
(36) RTS_n
(35) OUT2_n
(34) N. C.
(33) INTR
(32) N. C.
(31) A0
(30) A1
(29) A2
Copyright © 1999, InnovASIC Inc.
Customer Specific IC Solutions



InnovASIC
InnovASIC

IA16450 Datasheet Preview

IA16450 Datasheet

Universal Asynchronous Receiver/Transmitter

No Preview Available !

IA16450 pdf
IA16450
Page 2 of 10
Preliminary Data Sheet
Universal Asynchronous Receiver/Transmitter
The IA16450 is a form, fit and function compatible part to the National NS16450 Univeral
Asynchronous Receiver/Transmitter. The IA16450 function receives and transmits data in a variety
of configurations including 5, 6, 7 or 8 bit data words, odd, even or no parity, and 1, 1.5, and 2 stop
bits. This megafunction includes an internal Baud Rate Generator and Interrupt Control. A block
diagram is shown in Figure 1.
Functional Block Diagram
Figure 1
INTERNAL DATA
BUS
D7:D0
DATA BUS
BUFFER
RECEIVER
BUFFER
REGISTER
RECEIVER
SHIFT
REGISTER
SIN
A0
A1
A2
CS0
CS1
CS2_n
ADS_n
MR
RD
RD_n
WR
WR_n
DDIS
CSOUT
XIN
XOUT
DECODE
AND
CONTROL
LOGIC
LINE CONTROL
REGISTER
DIVISOR LATCH
(LSB)
DIVISOR LATCH
(MSB)
LINE STATUS
REGISTER
TRANSMITTER
HOLDING
REGISTER
MODEM
CONTROL
REGISTER
MODEM STATUS
REGISTER
INTERRUPT
ENABLE
REGISTER
INTERRUPT ID
REGISTER
RECEIVER
TIMING
&
CONTROL
RCLK
BAUD
GENERATOR
BAUDOUT_n
TRANSMITTER
TIMING
&
CONTROL
TRANSMITTER
SHIFT
REGISTER
SOUT
MODEM
CONTROL
LOGIC
RTS_n
CTS_n
DTR_n
DSR_n
DCD_n
RI
OUT1_n
OUT2_n
INTERRUPT
CONTROL
LOGIC
INTR
Copyright © 1999, InnovASIC Inc.
Customer Specific IC Solutions


Part Number IA16450
Description Universal Asynchronous Receiver/Transmitter
Maker InnovASIC
Total Page 10 Pages
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