st16c554 Exar Corporation, st16c554 Datasheet - Page 2

• Manufacturer Part Number: st16c554
• Description: Quad Uart With 16-byte Fifos
• Manufacturer: Exar Corporation

ST16C554/554D
2.97V TO 5.5V QUAD UART WITH 16-BYTE FIFO
F
ORDERING INFORMATION
IGURE
DSRA#
DTRA#
DTRB#
DSRB#
CTSA#
RTSA#
RTSB#
CTSB#
DSRA#
DTRA#
DTRB#
CTSA#
RTSA#
RTSB#
CTSB#
CSA#
CSB#
IOW#
INTA
INTB
CSA#
CSB#
VCC
GND
IOW#
TXA
TXB
INTA
INTB
GND
TXA
VCC
TXB
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
10
11
12
13
14
15
16
2. P
1
2
3
4
5
6
7
8
9
ST16C554DCQ64
ST16C554DCJ68
ST16C554DIQ64
ST16C554CQ64
ST16C554DIJ68
ST68C554CJ68
ST68C554IJ68
P
ART
IN
O
(16/68# pin connected to VCC)
N
UT
UMBER
A
ST16C554/554D
Intel Mode Only
SSIGNMENT
64-pin TQFP
68-pin PLCC
ST16C554
Intel Mode
64-Lead LQFP
64-Lead LQFP
64-Lead LQFP
68-Lead PLCC
68-Lead PLCC
68-Lead PLCC
68-Lead PLCC
P
ACKAGE
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
TXC
DSRD #
CTSD #
DTRD #
GND
RTSD #
INTD
CSD #
IOR#
CSC #
INTC
RTSC #
VCC
DTRC #
CTSC #
TXD
TXC
TXD
DSRD#
CTSD#
DTRD#
GND
RTSD#
INTD
CSD#
IOR#
CSC#
INTC
RTSC#
VCC
DTRC#
CTSC#
DSRC#
2
DSRA#
CTSA#
DTRA#
RTSA#
RTSB#
DTRB#
CTSB#
DSRB#
DSRA#
DSRB#
CTSA#
DTRA#
RTSA#
RTSB#
DTRB#
CTSB#
R/W#
IRQ#
R/W#
VCC
GND
IRQ#
GND
CS#
TXA
TXB
N.C.
VCC
CS#
TXA
TXB
N.C.
A3
A3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
O
(16/68# pin connected to GND)
PERATING
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Motorola Mode Only
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Motorola Mode
68-pin PLCC
68-pin PLCC
R
ST68C554
ST16C554
ANGE
T
EMPERATURE
D
EVICE
Active
Active
Active
Active
Active
Active
Active
REV. 4.0.1
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
S
TATUS
A4
DSRD#
CTSD#
DTRD#
GND
RTSD#
N.C.
N.C.
TXD
N.C.
TXC
N.C.
RTSC#
VCC
DTRC#
CTSC#
DSRC#
GND
N.C.
N.C.
TXD
N.C.
TXC
A4
N.C.
VCC
DSRD#
CTSD#
DTRD#
RTSD#
RTSC#
DTRC#
CTSC#
DSRC#