ISL4489E Datasheet, PDF (2/12 Pages) Intersil Corporation – Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers

ISL4489E, ISL4491E
Ordering Information
PART NO.
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL4489EIB
-40 to 85 14 Ld SOIC
M14.15
ISL4489EIB-T
-40 to 85 14 Ld SOIC
Tape and Reel
M14.15
ISL4489EIBZ (Note) -40 to 85 14 Ld SOIC (Pb-free) M14.15
ISL4489EIBZ-T
(Note)
-40 to 85 14 Ld SOIC
M14.15
Tape and Reel (Pb-free)
ISL4491EIB
-40 to 85 14 Ld SOIC
M14.15
ISL4491EIB-T
-40 to 85 14 Ld SOIC
Tape and Reel
M14.15
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which are 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-020C.
Pinout
ISL4489E, ISL4491E (SOIC)
TOP VIEW
NC 1
RO 2
R
RE 3
DE 4
DI 5
D
GND 6
GND 7
14 V_CC
13 NC
12 A
11 B
10 Z
9Y
8 NC
Truth Tables
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
Z
Y
X
1
1
0
1
X
1
0
1
0
X
0
X
High-Z
High-Z
RECEIVING
INPUTS
OUTPUT
RE
DE
A-B
RO
0
X
≥ +0.2V
1
0
X
≤ -0.2V
0
0
X
Inputs Open
1
1
X
X
High-Z
Pin Descriptions
PIN
FUNCTION
RO Receiver output: If A > B by at least 0.2V, RO is high; If A < B by 0.2V or more, RO is low; RO = High if A and B are unconnected (floating).
RE
Receiver output enable. RO is enabled when RE is low; RO is high impedance when RE is high.
DE
Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low.
DI
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.
GND Ground connection.
A
±15kV HBM ESD Protected, Noninverting receiver input.
B
±15kV HBM ESD Protected, Inverting receiver input.
Y
±15kV HBM ESD Protected, Noninverting driver output.
Z
±15kV HBM ESD Protected, Inverting driver output.
V_CC System power supply input (4.5V to 5.5V).
NC No Connection.
2
FN6074.2