xr16m554 Exar Corporation, xr16m554 Datasheet - Page 2

• Manufacturer Part Number: xr16m554
• Description: 1.62v To 3.63v Quad Uart With 16-byte Fifo
• Manufacturer: Exar Corporation

XR16M554/554D
1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
F
IGURE
DSRA#
CTSA#
DTRA#
RTSA#
RTSB#
DTRB#
CTSB#
DSRB#
CSA#
CSB#
IOW#
INTA
INTB
GND
VCC
TXA
TXB
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
2. P
IN
O
(16/68# pin connected to VCC)
UT
A
SSIGNMENT
68-pin PLCC
XR16M554
Intel Mode
DSRA#
CTSA#
DTRA#
RTSA#
RTSB#
DTRB#
CTSB#
CSA#
CSB#
IOW#
INTA
INTB
GND
TXA
VCC
TXB
F
OR
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
68-
PIN
PLCC P
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
XR16M554/554D
Intel Mode Only
GND
INTD
CSD#
TXD
IOR#
TXC
CSC#
INTC
VCC
DSRD#
CTSD#
DTRD#
RTSD#
RTSC#
DTRC#
CTSC#
DSRC#
64-pin TQFP
ACKAGES
2
DSRA#
DSRB#
CTSA#
DTRA#
RTSA#
RTSB#
DTRB#
CTSB#
IRQ#
R/W#
GND
VCC
CS#
TXA
TXB
N.C.
A3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
I
N
16
AND
(16/68# pin connected to GND)
68 M
Motorola Mode
68-pin PLCC
XR16M554
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
ODE AND
INTD
IOR#
TXC
INTC
DSRD#
CTSD#
DTRD#
GND
RTSD#
CSD#
TXD
CSC#
RTSC#
VCC
DTRC#
CTSC#
64-
PIN
LQFP P
REV. 1.0.0
ACKAGES
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
GND
N.C.
N.C.
TXD
N.C.
TXC
A4
N.C.
VCC
DSRD#
CTSD#
DTRD#
RTSD#
RTSC#
DTRC#
CTSC#
DSRC#