ST16C650A
2.90V TO 5.5V UART WITH 32-BYTE FIFO
áç
REV. 5.0.0
FIGURE 2. INTEL AND PC MODE PIN OUT
48-TQFP PACKAGE
44-PLCC PACKAGE
SEL
N.C.
D5
1
2
36
35
34
33
32
31
30
29
28
27
26
25
7
39
38
37
36
35
34
33
32
31
30
29
D5
D6
RESET
OP1#
DTR#
RTS#
OP2#
SEL
RESET
OP1#
DTR#
RTS#
OP2#
INT
8
D6
3
9
D7
D7
4
10
11
12
13
14
15
16
17
RCLK
RX
RCLK
N.C.
5
6
ST16C650ACQ48
Intel Bus Mode (SEL = VCC)
N.C.
ST16C650ACJ44
Intel Bus Mode (SEL = VCC)
RX
7
RXRDY#
A0
TX
8
TX
INT
CS0
9
CS0
RXRDY#
A0
CS1
10
11
12
A1
CS1
A2
-CS2
-BAUDOUT
CS2#
BAUDOUT#
A1
N.C.
A2
7
39
D5
D6
RESET
OP1#
DTR#
RTS#
S3
1
2
36
35
34
33
32
31
30
29
28
27
26
25
SEL
RESET
OP1#
DTR#
RTS#
S3
N.C.
D5
8
38
37
36
35
34
33
32
31
30
29
9
D7
D6
3
10
11
12
13
14
15
16
17
S2
D7
4
RX
S2
5
ST16C650ACQ48
PC Mode (SEL = GND)
A4
6
A4
SEL
IRQA
IRQB
A0
ST16C650ACJ44
PC Mode (SEL = GND)
7
IRQA
IRQB
A0
RX
TX
TX
8
A5
A5
9
A6
A6
10
11
12
A1
A7
A1
A2
A7
LPT1#
A2
N.C.
LPT1#
40-PDIP PACKAGE
ST16C650ACP40
2
EXAR [ EXAR CORPORATION ]
