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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
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
-
False Start Detection
-
Automatic Break Detection and Handling
-
Internal and External Sync Character Detection
The IA8251 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.
Intel is a registered trademark of Intel Corporation
Package Pinout
GND
RXD
D2
D3
RXD
GND
D4
D5
D6
D7
TXC_n
WR_n
CS_n
CD_n
RD_n
RXRDY
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
IA8251
28 Pin DIP
(28)
(27)
(26)
(25)
(24)
(23)
(22)
(21)
(20)
(19)
(18)
(17)
(16)
(15)
D1
D0
(28)
(27)
RXC_n
DTR_n
RTS_n
DSR_n
RESET
CLK
TXD
TXEMPTY
CTS_n
D4
D5
D6
D7
TXC_n
WR_n
CS_n
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(26)
(4)
(3)
(2)
(1)
VCC
VCC
D3
D2
D1
D0
IA8251
28 Pin LCC
(25)
(24)
(23)
(22)
(21)
(20)
RXC_n
DTR_n
RTS_n
DSR_n
RESET
CLK
TXD
(14)
(15)
(16)
(17)
CD_n
RD_n
SYNDET_BD
CTS_n
TXRDY
Copyright
©
1999, InnovASIC Inc.
Customer Specific IC Solutions
TXEMPTY
RXRDY
SYNDET_BD
TXRDY
(18)
(19)
INNOVASIC [ INNOVASIC, INC ]
