DATASHEET
ISL32600E, ISL32601E, ISL32602E, ISL32603E
1.8V to 3.3V, Micro-Power, ±15kV ESD, +125 °C, Slew Rate Limited
RS-485/RS-422 Transceivers
FN7967
Rev.2.00
Jan 31, 2019
The ISL32600E, ISL32601E, ISL32602E, and ISL32603E are
Features
±15kV IEC61000 ESD protected, micro-power, wide supply
range transceivers for differential communication. The
• Single 1.8V, 3V, or 3.3V supply
ISL32600E and ISL32601E operate with V ≥ 2.7V and have
• Low supply currents
CC
maximum supply currents as low as 100µA with both the
transmitter (Tx) and receiver (Rx) enabled. The ISL32602E and
ISL32603E operate with supply voltages as low as 1.8V. These
transceivers have very low bus currents, so they present less
than a 1/8 unit load to the bus. This allows more than 256
transmitters on the network without violating the RS-485
specification’s 32 unit load maximum.
- ISL32601E . . . . . . . . . . . . . . . . . . 100µA (maximum) at 3V
- ISL32603E . . . . . . . . . . . . . . . . 150µA (maximum) at 1.8V
• Ultra low shutdown supply current. . . . . . . . . . . . . . . . . . 10nA
• IEC61000 ESD protection on RS-485 I/O pins. . . . . . . ±15kV
- Class 3 ESD levels on all other pins. . . . . . . . . . >8kV HBM
The Rx inputs feature symmetrical switching thresholds and up
to 65mV of hysteresis to improve noise immunity and to
reduce duty cycle distortion in the presence of slow moving
input signals (see Figure 39 on page 18). The Rx input
common-mode range is the full -7V to +12V RS-485 range for
supply voltages ≥ 3V.
• Symmetrical switching thresholds for less duty cycle
distortion (see Figure 39 on page 18)
• Up to 65mV hysteresis for improved noise immunity
• Data rates from 128kbps to 460kbps
• Specified for +125°C operation
Hot plug circuitry ensures that the Tx and Rx outputs remain in
a high impedance state while the power supply stabilizes.
• 1/8 unit load allows up to 256 devices on the bus
• -7V to +12V common-mode input/output voltage range
(V ≥ 3V)
This transceiver family uses slew rate limited drivers, which
reduce EMI, and minimize reflections from improperly terminated
transmission lines or from unterminated stubs in multidrop and
multipoint applications.
CC
• Half and full duplex pinouts; three state Rx and Tx outputs
• 5V tolerant logic inputs
• Tiny MSOP packages consume 50% less board space
The ISL32600E and ISL32602E are configured for full duplex
(separate Rx input and Tx output pins) applications. The
ISL32601E and ISL32603E are half duplex versions that
multiplex the Rx inputs and Tx outputs to allow transceivers
with output disable functions in 8 Ld packages. Table 1 on
page 3 provides a summary of each device’s features.
Applications
• Differential sensor interfaces
• Process control networks
• Security camera networks
• Building environmental control/lighting systems
Related Literature
For a full list of related documents, visit our website:
• ISL32600E, ISL32601E, ISL32602E, and ISL32603E device
pages
10m
ISL3172E DYNAMIC (9.6kbps)
DE = V , RE = GND
CC
DYNAMIC (256kbps)
1m
25°C, R = ∞, C = 50pF
D
D
ISL3172E STATIC
DYNAMIC (128kbps)
ISL3260xE DYNAMIC (9.6kbps)
1m
100µ
ISL3260xE STATIC
STATIC
3.4
DE = V , RE = GND
CC
25°C, R = ∞, C = 50pF
D
D
10µ
2.7
100µ
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.6
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FIGURE 2. THE ISL32602E AND ISL32603E WITH V = 1.8V
CC
FIGURE 1. THE ISL32600E AND ISL32601E HAVE A 9.6kbps
OPERATING I LOWER THAN THE STATIC I OF
REDUCE OPERATING I BY A FACTOR OF 25 TO 40,
CC
CC
CC
COMPARED WITH I AT V = 3.3V
MANY EXISTING 3V TRANSCEIVERS
CC
CC
FN7967 Rev.2.00
Jan 31, 2019
Page 1 of 25