xr16v554 Exar Corporation, xr16v554 Datasheet - Page 3
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xr16v554
Manufacturer Part Number
xr16v554
Description
2.25v To 3.6v Quad Uart With 16-byte Fifo
Manufacturer
Exar Corporation
Datasheet
1.XR16V554.pdf
(45 pages)
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REV. 1.0.2
F
IGURE
3. P
CTSB#
RTSA#
RTSB#
CTSA#
CSA#
CSB#
IOW#
INTA
INTB
VCC
TXA
TXB
IN
INTSEL
CDD#
CDA#
RID#
VCC
GND
RIA#
RXD
RXA
10
11
12
NC
NC
1
2
3
4
5
6
7
8
9
D0
D1
D2
D3
D4
D5
D6
D7
NC
O
UT
13
14
10
11
12
15
16
17
18
19
20
2
1
3
4
5
6
7
8
9
(16/68# pin connected to VCC)
A
SSIGNMENT
48-pin QFN
XR16V554
Intel Mode
F
OR
48-
PIN
QFN P
Intel Mode Only
36
35
34
33
32
30
29
28
27
26
25
80 - pin LQFP
31
XR16 V 554
RXD
CTSD#
RTSD#
INTD
CSD#
TXD
CSC#
RTSC#
GND
IOR#
INTC
TXC
ACKAGE AND
3
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
CTSB#
RTSA#
RTSB#
CTSA#
CSA#
CSB#
IOW#
INTA
INTB
VCC
TXB
TXA
80-
10
11
12
1
2
3
4
5
6
7
8
9
PIN
(16/68# pin connected to GND)
LQFP P
Motorola Mode
48-pin QFN
XR16V554
ACKAGE
XR16V554/554D
44
41
60
58
54
46
42
59
57
56
55
53
52
51
50
49
48
47
45
43
GND
TXRDY#
RXRDY#
CDC#
RIC#
XTAL2
RXC
XTAL1
NC
RESET
VCC
RXB
NC
NC
A0
RIB#
CDB#
A1
A2
NC
36
35
34
33
32
30
29
28
27
26
25
31
RXD
CSD#
TXD
CSC#
CTSD#
GND
RTSD#
INTD
IOR#
RTSC#
INTC
TXC