ISL3158E Intersil Corporation, ISL3158E Datasheet - Page 3

• Manufacturer Part Number: ISL3158E
• Description: (ISL3150E - ISL3158E) RS-485/RS-422 Transceivers
• Manufacturer: Intersil Corporation

Truth Tables
NOTE: *Shutdown Mode (See Note 9).
Pin Descriptions
GND
V
PIN
A/Y
B/Z
RO
RE
DE
NC
RE
DI
A
B
Y
X
X
Z
CC
0
1
Receiver output: If A-B ≥ -50mV, RO is high; If A-B ≤ -200mV, RO is low; RO = High if A and B are unconnected (floating) or shorted.
Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.
Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.
Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low.
Ground connection.
±16.5kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input and noninverting driver output. Pin is an input if
DE = 0; pin is an output if DE = 1.
±16.5kV IEC61000 ESD Protected RS-485/422 level, Inverting receiver input and inverting driver output. Pin is an input if DE = 0; pin
is an output if DE = 1.
±16.5kV IEC61000 ESD Protected RS-485/422 level, noninverting receiver input.
±16.5kV IEC61000 ESD Protected RS-485/422 level, inverting receiver input.
±16.5kV IEC61000 ESD Protected RS-485/422 level, noninverting driver output.
±16.5kV IEC61000 ESD Protected RS-485/422 level, inverting driver output.
System power supply input (4.5V to 5.5V).
No Connection.
INPUTS
DE
1
1
0
0
ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E
TRANSMITTING
DI
X
X
1
0
3
High-Z *
High-Z
Z
0
1
OUTPUTS
High-Z *
High-Z
Y
1
0
FUNCTION
NOTE: *Shutdown Mode (See Note 9).
RE
0
0
0
1
1
Half Duplex
DE
0
0
0
0
1
INPUTS
Full Duplex
RECEIVING
DE
X
X
X
0
1
Open/Shorted
≥ -0.05V
≤ -0.2V
Inputs
A-B
X
X
December 14, 2006
OUTPUT
High-Z *
High-Z
RO
FN6363.0
1
0
1