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2022-09-24 21:26:48
TCA6416A Low Voltage 16-Bit I2C and SMBus I/O Expander
The TCA6416A is a 24-pin device that provides a 16-bit general-purpose parallel output/output (I/O) expansion 2C bus (or SMBus) protocol for two-wire bidirectional I. The device operates with a supply voltage of 1.65 V to 5.5 V on the I 2 C bus side (VCCI) and a supply voltage range of 1.65 V to 5.5 V on the P port side (VCCP).
The device supports 100 kHz (standard mode) and 400 kHz (fast mode) clock frequencies. When additional I/O is required for switches, sensors, buttons, LEDs, fans, etc., I/O expanders such as the TCA6416A provide an easy solution.
characteristic
I2C to Parallel Port Expander
Operating Supply Voltage Range 1.65 V to 5.5 V
Allows bidirectional voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5-VI 2 C-bus and P- and GPIO expansion port
Low standby current consumption of 3µA
5 V tolerant I/O ports
400-kHz Fast I2C bus
Hardware address pins allow two identical TCA6416A device I2C/SMBus buses
Active low reset input (RESET)
Open-drain active-low interrupt output (INT)
Input/Output Configuration Register
Polarity Inversion Register
Internal power-on reset
Power-up with all channels configured as inputs
No glitches on power up
Noise filter on SCL/SDA input
Latch output with high current drive maximum power technology for direct drive LED
Latch-up performance exceeds JESD 78, Class II 100 mA