ISL83387E Intersil Corporation, ISL83387E Datasheet - Page 2

• Manufacturer Part Number: ISL83387E
• Description: +/-15kV ESD Protected/+3#V to +5.5V/ 1Microamp/ 250kbps/ RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply
• Manufacturer: Intersil Corporation

Pinout
Pin Descriptions
FORCEOFF Active low to shut down transmitters and on-chip power supply. This overrides any automatic circuitry and FORCEON (see Table 2).
FORCEON
INVALID
R
T
GND
V
C1+
C2+
PIN
C1-
C2-
R
T
OUT
V+
OUT
V
V-
CC
IN
IN
L
System power supply input (3.0V to 5.5V).
Internally generated positive transmitter supply (+5.5V).
Internally generated negative transmitter supply (-5.5V).
Ground connection.
External capacitor (voltage doubler) is connected to this lead.
External capacitor (voltage doubler) is connected to this lead.
External capacitor (voltage inverter) is connected to this lead.
External capacitor (voltage inverter) is connected to this lead.
TTL/CMOS compatible transmitter Inputs. The switching point is a function of the V
TTL/CMOS level receiver outputs. Swings between GND and V
Logic-Level Supply. All TTL/CMOS inputs and outputs are powered by this supply.
Active low output that indicates if no valid RS-232 levels are present on any receiver input. Swings between GND and V
The switching point is a function of the V
Active high input to override automatic powerdown circuitry thereby keeping transmitters active. (FORCEOFF must be high). The
switching point is a function of the V
15kV ESD Protected
15kV ESD Protected
2
,
,
RS-232 level (nominally 5.5V) transmitter outputs.
RS-232 compatible receiver inputs.
L
FORCEON
voltage.
INVALID
R3
L
voltage.
T1
T2
T3
C1-
OUT
C1+
C2+
C2-
V+
V-
IN
IN
IN
10
11
12
ISL83387E (TSSOP)
1
2
3
4
5
6
7
8
9
ISL83387E
TOP VIEW
FUNCTION
L
.
24
23
22
21
20
19
18
17
16
15
14
13
FORCEOFF
V
GND
T1
T2
T3
R1
R2
R3
V
R1
R2
CC
L
OUT
OUT
OUT
IN
IN
IN
OUT
OUT
L
voltage.
L
.