RS8T245-Q1
8-Bit Dual-Supply Bus Transceiver with Configurable
Voltage Translation and 3-State Output
1 FEATURES
3 DESCRIPTIONS
This 8-bit non-inverting bus transceiver is a bidirectional
voltage-level translator and can be used to establish digital
switching compatibility between mixed-voltage systems. It
uses two separate configurable power-supply rails, Both
VCC(A) and VCC(B) supporting operating voltages from 1.65 V
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Qualified for Automotive Applications
AEC-Q100 Qualified with the Grade 1
Control Input VIH/VIL Levels are
Referenced to VCCA Voltage
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Power-Supply Range:
VCCA and VCCB:1.65V to 5.5V
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to 5.5 V, A ports, DIR and OE tracks the VCCA supply and B
ports tracks the VCCB supply. This allows the support of both
lower and higher logic signal levels while providing
bidirectional translation capabilities between any of the
1.8V, 2.5V, 3.3V and 5.5V voltage nodes.
Latch-up performance exceeds 100mA per
JESD 78, Class II
VCC Isolation: If Either VCC is at GND, Both
Ports are in the High-Impedance State
IOFF: Supports Partial-Power-Down Mode
Operation
The RS8T245-Q1 is designed for asynchronous
communication between two data buses. The logic levels
of the direction-control (DIR) input and the output-enable
Extended Temperature: -40°C to +125°C
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(OE) input activate either the B-port outputs or the A-port
outputs or place both output ports into the high-impedance
mode. The device transmits data from the A bus to the B
bus when the B-port outputs are activated, and from the B
bus to the A bus when the A-port outputs are activated. The
input circuitry on both A and B ports is always active and
must have a logic HIGH or LOW level applied to prevent
2 APPLICATIONS
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HEV/EV Inverter & Motor Control
Infotainment Head Unit
ADAS Fusion
excess ICC and ICCZ
.
ADAS Front Camera
HEV Battery Management System
This device is fully specified for partial-power-down
applications using IOFF. The IOFF circuitry disables the
outputs, preventing damaging current backflow through the
device when it is powered down.
The VCC isolation feature ensures that if either VCC input is
at GND, all outputs are in the high-impedance state.
To ensure the high-impedance state during power up or
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power down, OE should be tied to VCC through a pullup
resistor, the minimum value of the resistor is determined by
the current-sinking capability of the driver.
The RS8T245-Q1 is designed so that the control pins (DIR
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and OE) are supplied by VCCA. It operates over an ambient
temperature range of -40°C to +125°C.
Device Information (1)
PART
NUMBER
PACKAGE
BODY SIZE (NOM)
RS8T245-Q1
TSSOP24(24)
7.80mm×4.40mm
(1) For all available packages, see the orderable addendum at the end
of the data sheet.
REV A.2
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