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TCAL6408

AKTIV

8-Bit-Übersetzung von I²C-Bus/SMBus-E/A-Expander mit Interrupt, Reset und agilen E/A

Produktdetails

Number of I/Os 8 Features 1-MHz maximum frequency, Adjustable I/O level, Configuration registers, Interrupt pin, Reset pin Supply voltage (min) (V) 1.08 Supply voltage (max) (V) 3.6 Addresses 2 Rating Catalog Frequency (max) (MHz) 1 Operating temperature range (°C) -40 to 125
Number of I/Os 8 Features 1-MHz maximum frequency, Adjustable I/O level, Configuration registers, Interrupt pin, Reset pin Supply voltage (min) (V) 1.08 Supply voltage (max) (V) 3.6 Addresses 2 Rating Catalog Frequency (max) (MHz) 1 Operating temperature range (°C) -40 to 125
TSSOP (PW) 16 32 mm² 5 x 6.4 UQFN (RSV) 16 4.68 mm² 2.6 x 1.8 X2QFN (DTU) 16 2.56 mm² 1.6 x 1.6
  • Operating power-supply voltage range of 1.08V to 3.6V
  • Allows bidirectional voltage-level translation and GPIO expansion between 1.2V, 1.8V, 2.5V, and 3.3V I2C bus and p-ports
  • Low standby current consumption of 1µA typical at 1.8V
  • 1MHz fast mode plus I2C bus
  • Hardware address pin allows two devices on the same I2C, 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 100mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 4000V Human-body model (A114-A)
    • 1000V Charged-device model (C101)
  • Operating power-supply voltage range of 1.08V to 3.6V
  • Allows bidirectional voltage-level translation and GPIO expansion between 1.2V, 1.8V, 2.5V, and 3.3V I2C bus and p-ports
  • Low standby current consumption of 1µA typical at 1.8V
  • 1MHz fast mode plus I2C bus
  • Hardware address pin allows two devices on the same I2C, 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 100mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 4000V Human-body model (A114-A)
    • 1000V Charged-device model (C101)

The TCAL6408 device provides general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.08V to 3.6V on the I2C bus side (VCCI) and a power supply voltage ranging from 1.08V to 3.6V on the P-port side (VCCP).

The device supports 100kHz (Standard-mode), 400kHz (Fast-mode), and 1MHz (fast-mode-plus) I2C 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.

The TCAL6408 device provides general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.08V to 3.6V on the I2C bus side (VCCI) and a power supply voltage ranging from 1.08V to 3.6V on the P-port side (VCCP).

The device supports 100kHz (Standard-mode), 400kHz (Fast-mode), and 1MHz (fast-mode-plus) I2C 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.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet TCAL6408 8 -Bit Translating I2 C-Bus, SMBus I/O Expander With Interrupt Output, Reset, and Agile I/O Configuration Registers datasheet (Rev. C) PDF | HTML 30 Jan 2025
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
Application note Features of TCAL Agile I/O Expanders PDF | HTML 06 Jun 2023

Design und Entwicklung

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