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XR88C92CP Datasheet

  • XR88C92CP

  • DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER

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  • 32页

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DUAL UNIVERSAL ASYNCHRONOUS
RECEIVER AND TRANSMITTER
June 2003
XR88C92/192
DESCRIPTION
The XR88C92/192 is a Dual Universal Asynchronous Receiver and Transmitter with 8 (XR88C92) / 16 (XR88C192)
bytes transmit and receive FIFO. The XR88C92/192 is a pin and functional replacement for the SC26C92 and an
improved version of the Philips SCC2692 UART with faster data access and other additional features. The operating
speed of the receiver and transmitter can be selected independently from a table of eighteen fixed baud rates, a
16X clock derived from a programmable counter/timer, or an external 1X or 16X clock. The baud rate generator and
counter/timer can operate directly from a crystal or from external clock input. The XR88C92/192 provides a power-
down mode in which the oscillator is stopped but the register contents are retained. The XR88C92/192 is fabricated
in an advanced CMOS process to achieve low power and high speed requirements.
FEATURES
Added features in devices with top marking of "D2" and
newer:
鈥?/div>
5 volt tolerant inputs
鈥?/div>
Pin to pin and functional compatible to SC26C92
鈥?/div>
Enhanced Multidrop mode operation with separate
storage for address and data tags (9th bit)
鈥?/div>
8 Bytes transmit/receive FIFO (XR88C92)
鈥?6
Bytes transmit/receive FIFO (XR88C192)
鈥?/div>
Standard baud rates from 50bps to 230.4kbps
鈥?/div>
Non-standard baud rate of up to 1Mbps
鈥?/div>
Transmit and Receive trigger levels
鈥?/div>
Watch dog timer
鈥?/div>
Programmable clock source for receiver and trans-
mitter of each channel
鈥?/div>
Single interrupt output
鈥?/div>
7 Multipurpose inputs, 8 Multipurpose outputs
鈥?/div>
2.97 to 5.5 volt operation
鈥?/div>
Programmable character lengths (5, 6, 7, 8)
鈥?/div>
Parity, framing, and over run error detection
鈥?/div>
Programmable 16-bit timer/counter
鈥?/div>
On-chip crystal oscillator
鈥?/div>
Power down mode
PLCC Package
VCC
N.C.
IP1
IP3
IP4
IP5
IP6
41
44
43
42
40
39
38
37
36
35
6
5
4
3
2
1
IP2
A2
A1
A0
A3
IP 0
-IO W
-IO R
R XB
N .C .
TXB
OP1
OP3
OP5
OP7
7
8
9
10
11
12
13
14
15
16
17
D1 18
D3 19
D5 20
D7 21
GND 22
N.C. 23
-INT 24
D6 25
D4 26
D2 27
D0 28
-C S
R ESET
XTAL2
XTAL1
R XA
N .C .
TXA
OP0
OP2
OP4
OP6
X R 88C 92
X R 88C 192
34
33
32
31
30
29
ORDERING INFORMATION
Part number
Package
Operating temperature Device Status
XR88C92CP
XR88C92CJ
XR88C92CV
XR88C92IP
XR88C92IJ
XR88C92IV
XR88C192CP
XR88C192CJ
XR88C192CV
XR88C192IP
XR88C192IJ
XR88C192IV
40-Lead
44-Lead
44-Lead
40-Lead
44-Lead
44-Lead
40-Lead
44-Lead
44-Lead
40-Lead
44-Lead
44-Lead
PDIP
PLCC
TQFP
PDIP
PLCC
TQFP
PDIP
PLCC
TQFP
PDIP
PLCC
TQFP
0掳 C
0掳 C
0掳 C
-40掳 C
-40掳 C
-40掳 C
0掳 C
0掳 C
0掳 C
-40掳 C
-40掳 C
-40掳 C
to
to
to
to
to
to
to
to
to
to
to
to
+ 70掳 C
+ 70掳 C
+ 70掳 C
+ 85掳 C
+ 85掳 C
+ 85掳 C
+ 70掳 C
+ 70掳 C
+ 70掳 C
+ 85掳 C
+ 85掳 C
+ 85掳 C
Discontinued.
Active
Active
Discontinued.
Active
Active
Discontinued.
Active
Active
Discontinued.
Active
Active
See the XR88C92CV for a replacement.
See the XR88C92IV for a replacement.
See the XR88C192CV for a replacement.
See the XR88C192IV for a replacement.
Rev. 1.31
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
鈥?/div>
(510) 668-7000
鈥?/div>
FAX (510) 668-7017

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