
2
FN6001.4
January 16, 2005
TABLE 1. SUMMARY OF FEATURES
PART NUMBER
NO. OF
Tx.
NO. OF
Rx.
NO. OF
MONITOR Rx.
(ROUTB)
DATA
RATE
(kbps)
Rx. ENABLE
FUNCTION?
READY
OUTPUT?
MANUAL
POWER-
DOWN?
AUTOMATIC
POWERDOWN
FUNCTION?
ISL83385E
2
0
250
No
Yes
No
Pinouts
ISL83385E (SOIC)
TOP VIEW
ISL83385E (SSOP)
TOP VIEW
NC
C1+
V+
C1-
C2+
C2-
V-
T2OUT
R2IN
SHDN
GND
T1OUT
R1IN
R1OUT
T2IN
VCC
T1IN
R2OUT
18
17
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
NC
C1+
V+
C1-
C2+
C2-
V-
T2OUT
R2IN
SHDN
GND
T1OUT
R1IN
R1OUT
T2IN
NC
VCC
T1IN
R2OUT
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
NC
Pin Descriptions
PIN
FUNCTION
VCC
System power supply input (3.0V to 5.5V).
V+
Internally generated positive transmitter supply (+5.5V).
V-
Internally generated negative transmitter supply (-5.5V).
GND
Ground connection.
C1+
External capacitor (voltage doubler) is connected to this lead.
C1-
External capacitor (voltage doubler) is connected to this lead.
C2+
External capacitor (voltage inverter) is connected to this lead.
C2-
External capacitor (voltage inverter) is connected to this lead.
TIN
TTL/CMOS compatible transmitter Inputs.
TOUT
±15kV ESD Protected
, RS-232 level (nominally ±5.5V) transmitter outputs.
RIN
±15kV ESD Protected
, RS-232 compatible receiver inputs.
ROUT
TTL/CMOS level receiver outputs.
SHDN
Active low input to shut down transmitters and on-board power supply, to place device in low power mode.
ISL83385E