XR16V2551 Datasheet, PDF (2/51 Pages) Exar Corporation – HIGH PERFORMANCE DUART WITH 16-BYTE FIFO AND POWERSAVE FEATURE

XR16V2551
PRELIMINARY
HIGH PERFORMANCE DUART WITH 16-BYTE FIFO AND POWERSAVE FEATURE
FIGURE 2. PIN OUT ASSIGNMENT
REV. P1.0.0
D6
1
D7
2
RXB
3
RXA
4
TXA
5
TXB
6
CSA# ⁷
CSB# 8
XR16V2551
32-pin QFN
In 16 (Intel) Mode
24 RESET
23 RTSA#
22 INTA
21 INTB
20 A0
19 A1
18 A2
VCC
17 16/68#
D6
1
D7
2
RXB
3
RXA
4
TXA
5
TXB
6
CS#
7
A3 (CSB#)
8
XR16V2551
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
XR16V2551
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 CLKSEL
D5 1
D6 2
D7 3
RXB 4
RXA 5
TXRDYB# 6
TXA 7
TXB 8
OP2B# 9
CS# 10
A3 11
PWRSAVE 12
XR16V2551
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 CLKSEL
VCC
ORDERING INFORMATION
PART NUMBER
XR16V2551IL32
XR16V2551IM
PACKAGE
32-pin QFN
48-Lead TQFP
OPERATING TEMPERATURE RANGE
-40°C to +85°C
-40°C to +85°C
GND
DEVICE STATUS
Active
Active
2