PCA9546A
PCA9546A is Low Voltage 4-Channel I2C and SMBus Switch manufactured by Texas Instruments.
SCPS148I
- OCTOBER 2005
- REVISED JUNE 2022
PCA9546A Low Voltage 4-Channel I2C and SMBus Switch with Reset Function
1 Features
- 1-of-4 Bidirectional Translating Switches
- I2C Bus and SMBus patible
- Active-Low Reset Input
- Three Address Pins, Allowing up to Eight
PCA9546A Devices on the I2C Bus
- Channel Selection Via I2C Bus, in Any bination
- Power-up With All Switch Channels Deselected
- Low RON Switches
- Allows Voltage-Level Translation Between
1.8-V, 2.5-V, 3.3-V, and 5-V Buses
- No Glitch on Power-up
- Supports Hot Insertion
- Low Standby Current
- Operating Power-Supply Voltage Range of 2.3 V to
5.5 V
- 5.5 V Tolerant Inputs
- 0 to 400-k Hz Clock Frequency
- Latch-Up Performance Exceeds 100 m A Per JESD
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 1000-V Charged-Device Model (C101)
2 Applications
- Servers
- Routers (Tele Switching Equipment)
- Factory...