XR16V654_0709 Datasheet, PDF (3/58 Pages) Exar Corporation – 2.25V TO 3.6V QUAD UART WITH 64-BYTE FIFO

XR16V654/654D
REV. 1.0.2
2.25V TO 3.6V QUAD UART WITH 64-BYTE FIFO
FIGURE 3. PIN OUT ASSIGNMENT FOR 68-PIN PLCC PACKAGES IN 16 AND 68 MODE AND 64-PIN LQFP PACKAGES
DSRA# 10
CTSA# 11
DTRA# 12
VCC 13
RTSA# 14
INTA 15
CSA# 16
TXA 17
IOW# 18
TXB 19
CSB# 20
INTB 21
RTSB# 22
GND 23
DTRB# 24
CTSB# 25
DSRB# 26
XR16V654
68-pin PLCC
Intel Mode
(16/68# pin connected to VCC)
60 DSRD#
59 CTSD#
58 DTRD#
57 GND
56 RTSD#
55 INTD
54 CSD#
53 TXD
52 IOR#
51 TXC
50 CSC#
49 INTC
48 RTSC#
47 VCC
46 DTRC#
45 CTSC#
44 DSRC#
DSRA# 10
CTSA# 11
DTRA# 12
VCC 13
RTSA# 14
IRQ# 15
CS# 16
TXA 17
R/W# 18
TXB 19
A3 20
N.C. 21
RTSB# 22
GND 23
DTRB# 24
CTSB# 25
DSRB# 26
XR16V654
68-pin PLCC
Motorola Mode
(16/68# pin connected to GND)
60 DSRD#
59 CTSD#
58 DTRD#
57 GND
56 RTSD#
55 N.C.
54 N.C.
53 TXD
52 N.C.
51 TXC
50 A4
49 N.C.
48 RTSC#
47 VCC
46 DTRC#
45 CTSC#
44 DSRC#
DSRA# 1
CTSA# 2
DTRA# 3
VCC 4
RTSA# 5
INTA 6
CSA# 7
TXA 8
IOW# 9
TXB 10
CSB# 11
INTB 12
RTSB# 13
GND 14
DTRB# 15
CTSB# 16
XR16V654
64-pin TQFP
Intel Mode Only
48 DSRD#
47 CTSD#
46 DTRD#
45 GND
44 RTSD#
43 INTD
42 CSD#
41 TXD
40 IOR#
39 TXC
38 CSC#
37 INTC
36 RTSC#
35 VCC
34 DTRC#
33 CTSC#
3