GENERAL DEscriptION
The SGM4578 is an 8-bit, non-inverting, bidirectional voltage-level translator which features two independent configurable power-supply lines. The A and B ports track the VCCA supply and VCCB supply respectively. The supply voltage range is 1.65V to 5.5V for A ports and 2.3V to 5.5V for B ports. The device provides a bidirectional translation function between the different voltage nodes (including 1.8V, 2.5V, 3.3V and 5V).
The SGM4578 has an output enable (OE) function, which controls the inputs and outputs states. When OE goes low, all I/Os enter into the high-impedance state. It is beneficial for reducing quiescent current consumption. When VCCA is powered, OE has an internal pull-down current source.
The SGM4578 is available in the Green TSSOP-20 and TQFN-3×3-20L packages. It operates over an ambient temperature range of -40℃ to +85℃.
FEATURES
Power Supply Voltage Ranges (VCCA ≤ VCCB)
A Ports: 1.65V to 5.5V
B Ports: 2.3V to 5.5V
Direction-Control Signal is Not Required
Data Rates
Push-Pull: 24Mbps
Open-Drain: 2Mbps
Support VCCA or VCCB Isolation
When VCCA or VCCB is Low, Device Enters Power-Down Mode
No Specific Power Sequences Required for VCCA and VCCB
Support Partial-Power-Down Function
-40℃ to +85℃ Operating Temperature Range
Available in Green TSSOP-20 and TQFN-3×3-20L Packages
APPLICATIONS
Universal Asynchronous Receiver/Transmitter
I2C/SMBus Interfaces
General Purpose I/O (GPIO)