TCA9555: TCA9555DBR - alternate part with IO latch

Kanava sait Abdul Kathar

Part Number: TCA9555

Tool/software:

It seems TCA9555DBR part doesn't have IO latch, can you pls suggest alternate with IO latch (Pin & foot print compatible with TCA9555DBR)

0 Tyler Townsend 5 months ago

Hi Kanava,

TCA9555 can set I/O's to OUTPUT's and hold for a specified current: IOL = 25mA, IOH = 10mA, Abs max IOH/IOL = 50 mA.

If you are referring to input latch, this device does not have latchable inputs.

Please see any TCAL device. The TCAL I/O expanders implement input latch registers.

16-bit:

8-bit:

Regards,

Tyler

Interface forum