+2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers
with 15ꢀV ESD-ꢁrotected I/O and Logic ꢁins
47µF 0.1µF
V
V
L
CC
FORCEOFF
FORCEON
V+
C1+
C1-
C2+
C2-
0.1µF
0.1µF
0.1µF
0.1µF
V-
V
BATT
MAX3380E/
MAX3381E
PERIPHERALS
RS-232 LEVELS
CELL PHONE
LOGIC LEVELS
Tx
RTS
Rx
T1IN
T1OUT
T2OUT
R1IN
Tx
T2IN
CTS
Rx
R1OUT
R2OUT
CTS
R2IN
RTS
I/O
INVALID
Figure 11. Typical Application Circuit
ꢁin Configuration
Chip Information
TRANSISTOR COUNT: 1467
PROCESS: BiCMOS
TOP VIEW
C1+
V+
1
2
3
4
5
6
7
8
9
20 V
CC
19 FORCEOFF
18 GND
C1-
C2+
17 T1OUT
16 T2OUT
15 R1IN
MAX3380E/
MAX3381E
C2-
V-
INVALID
T1IN
T2IN
14
13
R2IN
V
L
12 FORCEON
11 R1OUT
R2OUT 10
TEEMꢀ
______________________________________________________________________________________ ±2