Datasheet
LTC2801/LTC2802/
LTC2803/LTC2804
18
2801234fe
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
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FAX: (408) 434-0507
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www.linear.com
LINEAR TECHNOLOGY CORPORATION 2005
LT 0510 REV E • PRINTED IN USA
2801 F22
LTC2804
+
–
V
CC
V
L
PS
MODE
10
11
13
14
15
16
4
3
2
1
5
12
T2OUT
T1OUT
R2IN
R1IN
T2IN
T1IN
R2OUT
R1OUT
CTS
RX
RTS
TX
PP
X
PP
Y
TXD
PP
Z
RXD
68
7 9
V
DD
SW CAP
V
EE
GND
UART
*ADDITIONAL BYPASS CAPACITOR AS NEEDED
µP
V
CC
1.8V TO 5.5V
1.8V TO 5.5V
DC-DC
C2
1µF
C5
220nF
C4
1µF
*
*
17
C3
1µF
C1
220nF
L1
10µH
tyPical aPPlication
Figure 22. Diagnostic Port Operating Directly Off Unregulated Battery Voltage
PART NUMBER DESCRIPTION COMMENTS
LT1780/LT1781 2-Driver/2-Receiver RS232 Transceiver Single 5V Supply with 0.1μF Capacitors, 15kV ESD
LTC1337 3-Driver/5-Receiver RS232 Transceiver Ultralow Power for DTE Applications
LTC1338 5-Driver/3-Receiver RS232 Transceiver Ultralow Power for DCE Applications
LT1039/LT1039-16 3-Driver/3-Receiver RS232 Transceiver 30kΩ Input Impedance for Multidrop Applications
LTC1348 3-Driver/5-Receiver RS232 Transceiver True RS232 Levels on 3.3V Supply
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