ST16C2450
xr
2.97V TO 5.5V DUART
REV. 4.0.1
2
FIGURE 2. PIN OUT ASSIGNMENT
ORDERING INFORMATION
PART NUMBER
PACKAGE
OPERATING
TEMPERATURE
RANGE
DEVICE STATUS
ST16C2450CP40
40-Lead PDIP
0°C to +70°C
Active. See the ST16C2450CQ48 for new designs.
ST16C2450CJ44
44-Lead PLCC
0°C to +70°C
Active
ST16C2450CQ48 48-Lead TQFP
0°C to +70°C
Active
ST16C2450IP40
40-Lead PDIP
-40°C to +85°C Active. See the ST16C2450IQ48 for new designs.
ST16C2450IJ44
44-Lead PLCC -40°C to +85°C Active
ST16C2450IQ48
48-Lead TQFP -40°C to +85°C Active
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
NC
TXA
TXB
OP2B#
CSA#
CSB#
NC
XT
AL
1
XT
A
L
2
IO
W#
CD
B
#
GN
D
NC
IO
R#
DS
R
B
#
RI
B
#
RT
S
B
#
CT
S
B
#
NC
RESET
DTRB#
DTRA#
RTSA#
OP2A#
NC
INTA
INTB
A0
A1
A2
NC
D4
D3
D2
D1
D0
NC
VC
C
RI
A
#
CD
A
#
DS
R
A
#
CT
S
A
#
NC
ST16C2450
48-pin TQFP
6
5
4
3
2
1
44
43
42
41
40
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
18
19
20
21
22
23
24
25
26
27
28
D5
D6
D7
RXB
RXA
NC
TXA
TXB
OP2B#
CSA#
CSB#
RESET
DTRB#
DTRA#
RTSA#
OP2A#
NC
INTA
INTB
A0
A1
A2
XT
AL
1
XT
AL
2
IO
W
#
CD
B#
GN
D
NC
IO
R
#
DS
R
B
#
RI
B
#
RT
SB
#
CT
SB
#
D4
D3
D2
D1
D0
NC
VC
C
RI
A#
CD
A#
DS
RA
#
CT
SA
#
ST16C2450
44-pin PLCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
D0
D1
D2
D3
D4
D5
D6
D7
RXB
RXA
TXA
TXB
OP2B#
CSA#
CSB#
XTAL1
XTAL2
IOW#
CDB#
GND
VCC
RIA#
CDA#
DSRA#
CTSA#
RESET
DTRB#
DTRA#
RTSA#
OP2A#
INTA
INTB
A0
A1
A2
CTSB#
RTSB#
RIB#
DSRB#
IOR#
S
T
16
C
24
5
0C
P
4
0