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IA8251
Advanced Information Sheet
Programmable Communication Interface
FEATURES
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Form, Fit, and Function Compatible with the Intel 8251A
Packaging options available: 28 Pin Plastic Dip or 28 Pin Plastic Leaded
Chip Carrier
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Synchronous and Asynchronous Operation
Full Duplex, Double-Buffered Transmitter and Receiver
Programmable Word Length, Stop Bits, and Parity
Offers Divide-by-1, -16, or –64 Mode
Includes:
Error Detection
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False Start Detection
Automatic Break Detection and Handling
Internal and External Sync Character Detection
The IA8251 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
Package Pinout
D2
D3
(1)
D1
(28)
(27)
(26)
(25)
(24)
(23)
(22)
(21)
(20)
(19)
(18)
(17)
(16)
(15)
IA8251
(2)
D0
28 Pin DIP
RXD
GND
D4
(3)
VCC
(4)
RXC_n
DTR_n
RTS_n
DSR_n
D4
D5
(5)
RXC_n
DTR_n
RTS_n
DSR_n
RESET
CLK
(25)
(24)
IA8251
(5)
(6)
28 Pin LCC
D5
(6)
D6
(7)
(23)
(22)
(21)
(20)
(19)
D6
(7)
D7
(8)
(8)
D7
RESET
CLK
TXC_n
WR_n
CS_n
(9)
TXC_n
WR_n
CS_n
CD_n
(9)
(10)
(11)
(10)
(11)
(12)
(13)
(14)
TXD
TXD
TXEMPTY
CTS_n
RD_n
SYNDET_BD
TXRDY
RXRDY
Copyright ã 1999, InnovASIC Inc.
Customer Specific IC Solutions
INNOVASIC [ INNOVASIC, INC ]
