SP3508 Datasheet, PDF (31/33 Pages) Sipex Corporation – Rugged 3.3V, 20Mbps, 8 Channel Multiprotocol Transceiver with Programmable DCE/DTE and Termination Resistors

DCE/DTE
+3.3V
+3.3V
C_VDD
C1
C2
1µF
1µF
1µF
10µF
76 74 70 72 69
VDD C1+ C1- C2+ C2- C3+ ²⁴
VCC
C3- ²⁶
VSS1 ⁶⁸
+3.3V
29 _AVCC
31
Charge Pump Section _VSS2 27
Transceiver Section
TxD
SD(a) 97
SD(b) 99
32
TxCE
TT(a) 93
TT(b) 95
33
ST
34
RTS
35
DTR
36 DCD_DCE
ST(a) 89
ST(b) 91
RS(a) 81
RS(b) 83
TR(a) 85
TR(b) 87
RRC(a) 79
RRC(b) 77
37
RL
RL(a) 67
1µF C3
C_VSS1
C_VSS2
38
LL
LL(a) 65
39
RxD
40
RxC
41
TxC
42
CTS
43
DSR
44 DCD_DTE
45
RI
RD(a) 50
RD(b) 49
RT(a) 52
RT(b) 51
TxC(a) 55
TxC(b) 53
CS(a) ₅₇
CS(b) 56
DM(a) 59
DM(b) 58
RRT(a) ₆₂
RRT(b) 61
IC 63
46
TM
TM(a) 64
2 _SDEN
3 _TTEN
4 _STEN
5 _RSEN
6 _TREN
7 _RRCEN
8 _RLEN
9 _LLEN
10 _RDEN
11 _RTEN
12 _TxCEN
13 _CSEN
14 _DMEN
15 _RRTEN
16 _ICEN
17 _TMEN
Logic Section
D0 ¹⁸
SP3508CF ^D1
D2
19
20
D_LATCH ²¹
TERM_OFF ²²
LOOPBACK ³⁰
28
AGND
GND
µDB-26 Serial Port Connector Pins
2 (V.11, V.35, V.28)
14 (V.11, V.35)
24 (V.11, V.35, V.28)
11 (V.11, V.35)
4 (V.11, V.28)
19 (V.11)
20 (V.11, V.28)
23 (V.11)
Signal (DTE_DCE)
TXD_RXD_A
TXD_RXD_B
TXCE_TXC_A
TXCE_TXC_B
RTS_CTS_A
RTS_CTS_B
DTR_DSR_A
DTR_DSR_B
21 (V.10, V.28)
18 (V.10, V.28)
3 (V.11, V.35, V.28)
16 (V.11, V.35)
17 (V.11, V.35, V.28)
9 (V.11, V.35)
15 (V.11, V.35, V.28)
12 (V.11, V.35)
5 (V.11, V.28)
13 (V.11)
6 (V.11, V.28)
22 (V.11)
8 (V.11, V.28)
10 (V.11)
22 (V.10, V.28)
25 (V.10, V.28)
RL_RI
LL_TM
RXD_TXD_A
RXD_TXD_B
RXC_TXCE_A
RXC_TXCE_B
*TXC_RXC_A
*TXC_RXC_B
CTS_RTS_A
CTS_RTS_B
DSR_DTR_A
DSR_DTR_B
DCD_DCD_A
DCD_DCD_B
RI_RL
LL_TM
+3.3V
* - Driver applies for DCE only on pins 15 and 12.
Receiver applies for DTE only on pins 15 and 12.
Driver applies for DCE only on pins 8 and 10.
Receiver applies for DTE only on pins 8 and 10.
Input Line
Output Line
I/O Lines represented by double arrowhead signifies a bi-directional bus.
Figure 51. SP3508 Typical Operating Configuration to Serial Port Connector with DCE/DTE programmability
Date: 06/14/04
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31
© Copyright 2004 Sipex Corporation