XR16L2551_07 Datasheet, PDF (2/49 Pages) Exar Corporation – LOW VOLTAGE DUART WITH POWERSAVE

XR16L2551
LOW VOLTAGE DUART WITH POWERSAVE
FIGURE 2. PIN OUT ASSIGNMENT
REV. 1.1.3
D6
1
D7
2
RXB
3
RXA
4
TXA
5
TXB
6
CSA# 7
CSB# 8
XR16L2551
32-pin QFN in
16 (Intel) Mode
24 RESET
23 RTSA#
22 INTA
21 INTB
20 A0
19 A1
18 A2
17 16/68#
VCC
D6
1
D7
2
RXB
3
RXA
4
TXA
5
TXB
6
CS#
7
A3 (CSB#)
8
XR16L2551
32-pin QFN in
68 (Motorola) Mode
24 RESET# (Reset)
23 RTSA#
22 IRQ#
21 NC (INTB)
20 A0
19 A1
18 A2
17 16/68#
GND
D5 1
D6 2
D7 3
RXB 4
RXA 5
TXRDYB# 6
TXA 7
TXB 8
OP2B# 9
CSA# 10
CSB# 11
PWRSAVE 12
XR16L2551
48-pin TQFP
in 16 (Intel) Mode
36 RESET
35 DTRB#
34 DTRA#
33 RTSA#
32 OP2A#
31 RXRDYA#
30 INTA
29 INTB
28 A0
27 A1
26 A2
25 NC
D5 1
D6 2
D7 3
RXB 4
RXA 5
TXRDYB# 6
TXA 7
TXB 8
OP2B# 9
CS# 10
A3 11
PWRSAVE 12
XR16L2551
48-pin TQFP in
68 (Motorola) Mode)
36 RESET#
35 DTRB#
34 DTRA#
33 RTSA#
32 OP2A#
31 RXRDYA#
30 IRQ#
29 NC
28 A0
27 A1
26 A2
25 NC
VCC
GND
ORDERING INFORMATION
PART NUMBER
XR16L2551IL
XR16L2551IM
PACKAGE
32-Lead QFN
48-Lead TQFP
OPERATING TEMPERATURE
RANGE
-40°C to +85°C
-40°C to +85°C
DEVICE STATUS
Active
Active
2