ISL3178AEMBZ-T Intersil, ISL3178AEMBZ-T Datasheet - Page 2

• Manufacturer Part Number: ISL3178AEMBZ-T
• Description: TXRX ESD 3.3V RS485/422 8-SOIC
• Manufacturer: Intersil
• Type: Transceiverr

Specifications of ISL3178AEMBZ-T

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Ordering Information
Truth Tables
NOTE: *Shutdown Mode (see Note 7)
Pin Descriptions
ISL3178AEMBZ* 3178A EMBZ -55 to +125 8 Ld SOIC
ISL3178AEMW
*Add “-T” suffix for tape and reel. Please refer to TB347 for details on
reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination finish,
which is RoHS compliant and compatible with both SnPb and Pb-free
soldering operations). Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
GND
NUMBER
V
PIN
A/Y
B/Z
RO
RE
DE
RE
DI
(Note)
X
X
CC
0
1
PART
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. If the Rx enable function isn’t
required, connect RE directly to GND or through a 1kΩ to 3kΩ resistor to GND.
Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high, and are high impedance when DE is low. If the
Tx enable function isn’t required, connect DE to V
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.
±15kV 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.
±15kV 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.
System power supply input (3.0V to 3.6V).
INPUTS
DE
1
1
0
0
MARKING
PART
TRANSMITTING
DI
X
X
1
0
2
-55 to +125
RANGE
TEMP.
(°C)
High-Z *
High-Z
Z
0
1
PACKAGE
(Pb-Free)
OUTPUTS
Wafer
High-Z *
High-Z
M8.15
Y
1
0
DWG. #
PKG.
CC
ISL3178AE
through a 1kΩ to 3kΩ resistor.
FUNCTION
Truth Tables
NOTE: *Shutdown Mode (see Note 7)
RE
0
0
0
1
1
Half Duplex
DE
0
0
0
0
1
(continued)
INPUTS
Full Duplex
RECEIVING
DE
X
X
X
0
1
Open/Shorted
≥ -0.05V
≤ -0.2V
Inputs
A-B
X
X
OUTPUT
High-Z *
High-Z
May 6, 2009
RO
FN6887.1
1
0
1