Packaging information
| Package | Pins X2QFN (DTU) | 16 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 3,000 | LARGE T&R |
Features for the TCAL6408
- Operating power-supply voltage range of 1.08 V to 3.6 V
- Allows bidirectional voltage-level translation and GPIO expansion between 1.2-V, 1.8-V, 2.5-V, and 3.3-V I 2C bus and p-ports
- Low standby current consumption of 1 µA typical at 1.8 V
- 1-MHz fast mode plus I 2C bus
- Hardware address pin allows two devices on the same I 2C, SMBus bus
- Active-low reset input ( RESET )
- Open-drain active-low interrupt output ( INT )
- Input or output configuration register
- Polarity inversion register
- Configurable I/O drive strength register
- Pull-up and pull-down resistor configuration register
- Internal power-on reset
- Noise filter on SCL or SDA inputs
- Latched outputs with high-current drive maximum capability for directly driving LEDs
- Latch-up performance exceeds 100 mA per JESD 78, class II
- ESD protection exceeds JESD 22
- 4000-V Human-body model (A114-A)
- 1000-V Charged-device model (C101)
Description for the TCAL6408
The TCAL6408 device provides general purpose parallel input/output (I/O) expansion for the two-line bidirectional I 2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.08 V to 3.6 V on the I 2C bus side (V CCI) and a power supply voltage ranging from 1.08 V to 3.6 V on the P-port side (V CCP).
The device supports 100-kHz (Standard-mode), 400-kHz (Fast-mode), and 1-MHz (fast-mode-plus) I 2C clock frequencies. I/O expanders such as the TCAL6408 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and so on.
The TCAL6408 has Agile I/O ports which include additional features designed to enhance the I/O performance in terms of speed, power consumption and EMI. The additional features are: programmable output drive strength, programmable pull-up and pull-down resistors, latchable inputs, maskable interrupt, interrupt status register, and programmable open-drain or push-pull outputs.