 Features
 Ultra-low-voltage I2C translator with rise time
accelerators
 Data rate (push-pull): 4 MHz
 Operating VCC range: 1.08 V to 3.6 V
 The frequency of SCL: 1 MHz (open-drain,
fast-mode plus)
 Low IOFF: 2.5 μA when either VCCA or VCCB = 0 V
 EN input can be tied directly to VCCA or controlled
by GPIO
 2-bit bidirectional translator for SDA and SCL
lines in I2C applications
 Provides bidirectional voltage translation with no
direction pin
 Internal 10 kΩ pull-up resistor on all SDA and
SCL pins are enabled based on respective VCC
voltage
 VCC isolation feature: if either VCC input is at GND,
both parts are high impedance
 Either VCCA or VCCB can be ramped first: No
power-supply sequencing required
 Operating temperature range: -40°C to 125°C
 Applications
 Wearables
 GPIO
 Personal electronics
 Description
With rising and falling edge accelerators, the
DIO7416 is a 2-bit bi-directional I2C voltage translator
with enable (EN) pin. Both VCCA and VCCB accept a
power supply voltage ranging from 1.08 V to 3.6 V.
This allows for low-voltage transmission among 1.2 V,
1.8 V, 2.5 V, and 3.3 V voltage nodes.
Each A port I/O pin of DIO7416 has an internal 10 kΩ
pull-up resistor to VCCA and each B port I/O pin has
an internal 10 kΩ pull-up resistor to VCCB. The
internal pull-up resistors are reverse biased protected,
so if the power is turned off, current cannot flow back
through the resistors to the power supply.
The enable pin (referenced to VCCA) is 3.6 V tolerant.
When the enable pin is high, DIO7416 can achieve
level conversion function. When the enable pin is low,
the DIO7416 enters shutdown mode. The pull-up
resistor is not controlled by the enable (EN) pin. As
long as the supply is above VUVLO, the pull-up resistor
on one side of it will be enabled.