XR16C2550 Datasheet, PDF (2/38 Pages) Exar Corporation – 2.97V TO 5.5V DUART WITH 16-BYTE FIFO

XR16C2550
2.97V TO 5.5V DUART WITH 16-BYTE FIFO
FIGURE 2. PIN OUT ASSIGNMENT
xr
REV. 1.0.1
D5 1
D6 2
D7 3
RXB 4
RXA 5
TXRDYB# 6
TXA 7
TXB 8
OP2B# 9
CSA# 10
CSB# 11
NC 12
D5 7
D6 8
D7 9
RXB 10
RXA 11
TXRDYB# 12
TXA 13
TXB 14
OP2B# 15
CSA# 16
CSB# 17
XR16C2550
48-pin TQFP
XR16C2550
44-pin PLCC
36 RESET
35 DTRB#
34 DTRA#
33 RTSA#
32 OP2A#
31 RXRDYA#
30 INTA
29 INTB
28 A0
27 A1
26 A2
25 NC
39 RESET
38 DTRB#
37 DTRA#
36 RTSA#
35 OP2A#
34 RXRDYA#
33 INTA
32 INTB
31 A0
30 A1
29 A2
D0 1
D1 2
D2 3
D3 4
D4 5
D5 6
D6 7
D7 8
RXB 9
RXA 10
TXA 11
TXB 12
OP2B# 13
CSA# 14
CSB# 15
XTAL1 16
XTAL2 17
IOW# 18
CDB# 19
GND 20
40 VCC
39 RIA#
38 CDA#
37 DSRA#
36 CTSA#
35 RESET
34 DTRB#
33 DTRA#
32 RTSA#
31 OP2A#
30 INTA
29 INTB
28 A0
27 A1
26 A2
25 CTSB#
24 RTSB#
23 RIB#
22 DSRB#
21 IOR#
ORDERING INFORMATION
PART NUMBER
PACKAGE
XR16C2550IP
XR16C2550IJ
XR16C2550IM
40-Lead PDIP
44-Lead PLCC
48-Lead TQFP
OPERATING
TEMPERATURE RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
DEVICE STATUS
Active. See the XR16C2550IM for new designs.
Active
Active
2