0
ACTIVE
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 |
4 |
Rating |
Catalog |
Frequency (max) (MHz) |
1 |
Operating temperature range (°C) |
-40 to 125 |
TSSOP (PW)-16-32 mm² 5 x 6.4
The TCAL9538 device provides general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol and is designed for 1.08V to 3.6V VCC operation.
The device supports 100kHz (Standard-mode), 400kHz (Fast-mode), and 1MHz (fast-mode-plus) I2C clock frequencies. I/O expanders such as the TCAL9538 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and so on.
The TCAL9538 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.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
