 Features
 Wide supply voltage range:
− 1.08 V to 3.6 V on A port
− 1.65 V to 5.5 V on B port (VCCA ≤ VCCB)
 Maximum data rates:
− 120 Mbps (Push-Pull)
− 2 Mbps (Open-Drain)
 Low supply current: ICCA + ICCB = 1 μA
 VCC isolation feature:
If either VCCA or VCCB input is at GND, all
outputs are in the high-impedance state
 OE input circuit referenced to VCCA
 No power-supply sequencing required. VCCA or
VCCB can be ramped first
 IOFF supports partial power-down mode
operation
 Operating temperature range: -40°C to 85°C
 Applications
 Desktop PC
 Handset
 Smartphone
 Tablet
 Description
The DIO7S104 is a 4-bit bidirectional voltage level
translator with output enable (OE) pin. The device
uses two separate configurable power-supply rails.
The A port is designed to track VCCA and the VCCA
supplies voltage from 1.08 V to 3.6 V, so the
DIO7S104 meets the low voltage system application.
The B port is designed to track VCCB and VCCB
supplies voltage from 1.65 V to 5.5 V. VCCA should not
exceed VCCB. This allows for universal low-voltage
bidirectional translation between any of the 1.2 V, 1.5
V, 1.8 V, 2.5 V, 3.3 V, and 5 V voltage system. The
DIO7S104 can be applied to level conversion of open
drain output such as I2C/SMBus.
The DIO7S104 has an output enable pin which
control the output status. When the OE input is low,
all I/Os are placed in the high-impedance state. Pins
of A port and OE are referenced to VCCA and pins of B
port are referenced to VCCB.
This device is fully specified for partial power-down
applications using IOFF. The IOFF circuitry disables the
output, preventing the damaging backflow current
through the device when it is powered down.
The DIO7S104 is available in TSSOP-14 and
QFN2.0*1.7-12 packages. It is specified over ambient
temperature range of -40°C to 85°C, which meets the
requirements of industry and consumer applications.