SP503
Multiprotocol Transceiver
■
Single Chip Programmable Serial
Transceiver
■
Seven (7) Drivers and Seven (7)
Receivers
■
Software-Selectable Industry Standard
Protocols:
— RS-232 (V.28)
— EIA-530
— RS-449
— RS-422A (V.11, X.27)
— RS-485
— V.35
■
Independant Driver and Receiver Mode
Selection
■
+5V Single Power Supply Operation
■
Surface Mount Packaging
77 SCT(b)
76 SCT(a)
69 DM(b)
68 DM(a)
71 RD(b)
70 RD(a)
67 CS(b)
66 CS(a)
61 SD(a)
65 TT(b)
63 TT(a)
75 GND
73 V
CC
72 GND
64 GND
78 DSR
80 CTS
79 SCT
74 V
CC
62 V
CC
RxD 1
RDEC
0
2
RDEC
1
3
RDEC
2
4
RDEC
3
5
TTEN 6
SCTEN 7
V
CC
8
TDEC
3
9
TDEC
2
10
TDEC
1
11
TDEC
0
12
DTR 13
TxD 14
TxC 15
RTS 16
RL 17
NC 18
DCD 19
RxC 20
60 GND
59 SD(b)
58 TR(a)
57 GND
56 TR(b)
55 V
CC
54 RS(a)
53 GND
SP503
52 RS(b)
51 LL(a)
50 GND
49 LL(b)
48 V
CC
47 RL(a)
46 GND
45 RL(b)
44 ST(b)
43 GND
42 ST(a)
41 V
CC
RT(a) 37
RR(a) 35
RR(b) 36
RT(b) 38
IC(a) 39
STEN 23
GND 29
C
1
– 30
C
2
– 31
Now Available in Lead Free Packaging
DESCRIPTION
The
SP503
is a highly integrated serial transceiver that allows software control of its interface
modes. It offers hardware interface modes for RS-232 (V.28), RS-422A (V.11), RS-449, RS-485,
V.35, and EIA-530. The
SP503
is fabricated using low–power BiCMOS process technology, and
incorporates a
Exar
patented (5,306,954) charge pump allowing +5V only operation.
Drivers
Receivers
SP503
Charge
Pump
Driver
Decode
Receiver
Decode
SP503_101_101508
SP503 Multiprotocol Transceiver
© Copyright 2008 Exar Corporation
1
GND 34
IC(b) 40
V
CC
25
C
1
+ 26
V
DD
27
C
2
+ 28
V
CC
33
RI 21
ST 22
LL 24
V
SS
32
EXAR [ EXAR CORPORATION ]
