SP505AN Datasheet, PDF (6/30 Pages) Sipex Corporation – Multi-Protocol Serial Transceivers

+5V
#103_DTE/#104_DCE
#108_DTE/#107_DCE
#105_DTE/#106_DCE
#113_DTE/#115_DCE
#114_DTE/#114_DCE
#140_DTE/#109_DCE
#141_DTE/#142_DCE
#104_DTE/#103_DCE
#115_DTE/#113_DCE
#106_DTE/#105_DCE
#107_DTE/#108_DCE
#109_DTE/#140_DCE**
#142_DTE/#141_DCE
M0
M1 (V.28_Enable)
M2 (V.11_Enable)
M3
Mode_Enable
Mode Selection
M3
M2
M1
M0
Mode
Enable
Physical Layer
0 000
SHUTDOWN
0 100
X.21 (V.11)
0 010
RS-232 (V.28)
1 100
RS-449 (V.11 & V.10)
1 1 01
EIA-530 (V.11 & V.10)
1 1 10
V.35 (V.35 & V.28)
1 1 11
EIA-530A (V.11 & V.10)
1N5819, MBRS140T3, or equiv.
10µF 10µF
10µF
10µF
Various VCC pins
(Refer to SP506
27 26 30 28 31 32 10µF
Datasheet) VCC VDD _C1+ C1-C2+ _C2-VSS
Drivers
61
TxD
59
14
58
DTR
56
13
54
RTS
52
16
63
TxC
65
15
42
ST
44
22
47
RL
45
17
51
LL
49
24
Receivers
70
RxD
71
1
37
RxC
38
20
66
CTS
67
80
68
DSR
69
78
35
DCD
36
19
39
RI
40
21
76
SCT
77
79
2
SDEN
3
12 ^DEC0
11 ^DEC1
TREN
4
RSEN
18
10 ^DEC2
RLEN
DEC3
9
LLEN
SP506CF STEN
5
23
12
TTEN
LATCH
8
SCTEN ⁷
GND
Various GND pins (Refer to SP506 Datasheet)
DB-25 Connector Pins & Signals [DTE/DCE]
2
TXD(a)/RXD(a)
14
TXD(a)/RXD(b)
20
DTR(a)/DSR(a)
23
DTR(b)/DSR(b)
4
RTS(a)/CTS(b)
19
RTS(b)/CTS(b)
24
TXCE(a)/TXC(a)
11
TXCE(b)/TXC(b)
15
*TXC(a)/RXC(a)
12
*TXC(b)/RXC(b)
21
RL/DCD(a)**
18
LL/TM
3
RXD(a)/TXD(a)
16
RXD(b)/TXD(b)
17
RXC(a)/TXCE(a)
9
RXC(b)/TXCE(b)
5
CTS(a)/RTS(a)
13
CTS(b)/RTS(b)
6
DSR(a)/DTR(a)
22
DSR(b)/DTR(b)
8
DCD(a)/RL or DCD(a)**
10
DCD(b)/DCD(b)
25
TM/LL
DCE/DTE Control
7
SIGNAL GND (#102)
* - Driver applies for DCE only on pins 24 and 11. Receiver applies for DTE
only on pins 24 and 11.
** - RL may not be required in some applications and DCD may be required
to be bi-directional. If RL is not required The RL is replaced by DCD(a)
and the #140_DCE is replaced by #109_DCE. The RL driver of the
SP505 will not be in use during DCE mode in this case.
Input Line
Output Line
I/O Lines represented by double arrowhead signifies a bi-directional bus.
Optional bi-directional line; if RL (#140) is used, the driver output, RL(a), can go directly to pin. 21, Remote Loopback, of the DB-25.
The RLEN enable pin, if RL is used, can be permanently enabled by tying it to GND.
Figure 4. SP506 DTE/DCE Programmable Configuration
SP505/6/7APN/03
SP505, SP506, SP507 Application Note
6
© Copyright 2000 Sipex Corporation