FIGURE 2. PIN OUT ASSIGNMENT - TQFP AND QFN PACKAGES
48
47
46
45
44
43
42
41
40
39
38
37
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
13
14
15
16
17
18
19
20
21
22
23
24
D5
D6
D7
RXB
RXA
TXRDYB#
TXA
TXB
OP2B#
CSA#
CSB#
NC
XT
AL
1
XT
A
L
2
IO
W
#
CDB
#
GN
D
RX
RDY
B#
IO
R#
DS
RB#
RI
B
#
RT
SB
#
CT
SB
#
NC
RESET
DTRB#
DTRA#
RTSA#
OP2A#
RXRDYA#
INTA
INTB
A0
A1
A2
NC
D4
D3
D2
D1
D0
TX
RDY
A#
VC
C
RIA#
CDA
#
DS
R
A
#
CT
SA
#
NC
XR16M752
48-pin TQFP
Intel Mode Only
32
31
30
29
1
2
3
4
5
6
7
8
24
23
22
21
20
19
11
12
13
14
15
16
9
10
D5
D6
D7
RXB
RXA
TXA
TXB
CSA#
CSB#
XT
AL
1
XT
AL
2
IO
W
#
GND
IO
R
#
RT
SB
#
CT
SB
#
RESET
RTSA#
INTA
INTB
A0
A1
A2
D4
D3
D2
D1
D0
VC
C
CT
SA
#
XR16M752
32-pin QFN
Intel Mode Only
28
27
26
25
18
17
NC
32
31
30
29
1
2
3
4
5
6
7
8
24
23
22
21
20
19
11
12
13
14
15
16
9
10
D5
D6
D7
RXB
RXA
TXA
TXB
CSA#
CSB#
XT
AL
1
XT
AL
2
IO
W
#
GND
IO
R
#
RT
SB
#
CT
SB
#
RESET
RTSA#
INTA
INTB
A0
A1
A2
D4
D3
D2
D1
D0
VC
C
CT
SA
#
XR68M752
32-pin QFN
Intel Mode
28
27
26
25
18
17
NC
16/68#
VCC
32
31
30
29
1
2
3
4
5
6
7
8
24
23
22
21
20
19
11
12
13
14
15
16
9
10
D5
D6
D7
RXB
RXA
TXA
TXB
CS#
A3
XT
AL
1
XT
AL
2
R/
W#
GND
NC
RT
SB
#
CT
SB
#
RESET#
RTSA#
IRQ#
NC
A0
A1
A2
D4
D3
D2
D1
D0
VC
C
CT
SA
#
XR68M752
32-pin QFN
Motorola Mode
28
27
26
25
18
17
NC
16/68#
GND
48
47
46
45
44
43
42
41
40
39
38
37
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
13
14
15
16
17
18
19
20
21
22
23
24
D5
D6
D7
RXB
RXA
TXRDYB#
TXA
TXB
OP2B#
CSA #
CSB #
NC
XT
A
L
1
XT
A
L2
IO
W
#
CD
B#
GN
D
RX
R
DY
B
#
IO
R
#
DS
R
B
#
RI
B#
RT
S
B
#
CT
S
B
#
RESET
DTRB#
DTRA#
RTSA#
OP2A#
RXRDYA #
INTA
INTB
A0
A1
A2
D4
D3
D2
D1
D0
TX
RDY
A#
VCC
RI
A
#
CD
A
#
DS
R
A
#
CT
SA#
NC
XR68M 752
48- pin TQFP
Intel Mode
NC
VCC
16
#
/6
8
48
47
46
45
44
43
42
41
40
39
38
37
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
13
14
15
16
17
18
19
20
21
22
23
24
D5
D6
D7
RXB
RXA
TXRDYB#
TXA
TXB
OP2B#
CS#
A3
NC
XT
A
L1
XT
A
L2
R/W
#
CD
B
#
GN
D
RX
R
DY
B
#
NC
DS
R
B
#
RI
B
#
RT
S
B
#
CT
S
B
#
RESET#
DTRB#
DTRA#
RTSA#
OP2A#
RXRDYA#
IRQ#
NC
A0
A1
A2
D4
D3
D2
D1
D0
T
X
RDYA
#
VCC
RI
A
#
CDA
#
DS
R
A
#
C
T
SA#
NC
XR68M752
48- pin TQFP
Motorola Mode
NC
GND
16
#
/6
8
XR16M752/XR68M752
2
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
REV. 1.1.1