SP3508EB Exar Corporation, SP3508EB Datasheet - Page 34

• Manufacturer Part Number: SP3508EB
• Description: LIN Transceivers 20Mbps Multiprotocol Transceiver 8Ch 3.3V
• Manufacturer: Exar Corporation
• Series: -r

Specifications of SP3508EB

• Main Purpose: Interface, Transceiver RS-232, RS-449, EIA-530(A), X.21
• Embedded: No
• Utilized Ic / Part: SP3508
• Primary Attributes: Internal Line or Digital Loopback Testing
• Secondary Attributes: 8 Drivers and 8 Receivers
• Lead Free Status / Rohs Status: Details

DCE/DTE
Figure 51. SP3508 Typical Operating Configuration to Serial Port Connector with DCE/DTE program-
mability
+3.3V
+3.3V
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
10mF
+3.3V
29
31
32
34
35
36
37
38
39
40
41
42
43
44
45
46
33
17
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
V
AV
SDEN
TTEN
STEN
TMEN
RSEN
TREN
RRCEN
RLEN
LLEN
RDEN
RTEN
TxCEN
CSEN
DMEN
RRTEN
ICEN
CC
DCD_DCE
DCD_DTE
CC
C
TxCE
1mF
RTS
CTS
VDD
DTR
RxD
RxC
TxC
DSR
TxD
TM
ST
RL
LL
RI
V
DD
76
SP3508CF
Charge Pump Section
Transceiver Section
C1+
Logic Section
74
1mF
C1
GND
C1-
70
C2+
TERM_OFF
LOOPBACK
72
D_LATCH
1mF
C2
RRC(a)
RRC(b)
RRT(a)
RRT(b)
C2-
AGND
TxC(a)
TxC(b)
DM(a)
DM(b)
SD(a)
SD(b)
RS(a)
RS(b)
RD(a)
RD(b)
CS(b)
TM(a)
TT(a)
TT(b)
ST(a)
ST(b)
TR(a)
TR(b)
RL(a)
RT(a)
RT(b)
CS(a)
LL(a)
69
V
V
D1
C3+
C3-
D0
D2
SS1
SS2
IC
26
68
27
24
97
99
93
95
89
91
81
83
85
87
79
77
67
65
50
49
52
51
55
53
57
56
59
58
62
61
63
64
18
19
20
21
22
30
28
1mF
C
C
VSS1
VSS2
C3
34
+3.3V
* - Driver applies for DCE only on pins 15 and 12.
mDB-26 Serial Port Connector Pins
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.
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)
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)
Output Line
Input Line
I/O Lines represented by double arrowhead signifies a bi-directional bus.
TXD_RXD_A
TXD_RXD_B
TXCE_TXC_A
TXCE_TXC_B
RTS_CTS_A
RTS_CTS_B
DTR_DSR_A
DTR_DSR_B
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
Signal (DTE_DCE)
SP3508_00_072208