ICs

Discrete
 Semiconductors

Opto Electronics

Passive Components

Modules
 (Sub Systems)

  • LAPIS Semiconductor
  • Kionix
  • Distribution Inventory Search

GPIO Expander ICs

GPIO expander ICs are capable of controlling and maintaining GPIO input/output states (via I2C bus). An interrupt function is built in, along with power ON reset and open drain output. In addition, the ICs support 3V input. 

RoHM'SGPIO ICs

*Put the mouse on the icon to see further details
Specifications Part No. Package Features
8 Ports Type
BU1850MUV

VQFN016V3030
20 Ports and 96keyencorder
NEW
BU1852GUW

VBGA035W040
20 Ports Type
BU8272GUW

VBGA035W040


Block Diagram
Expanded
  

Features

8-/20-port GPIO interface

Each GPIO port can be used for input/output. Output states are controlled via I2C Write protocol and the GPIO input states can be detected by I2C Read.Two products are offered based on the number of ports, allowing selection of the optimal solution to fit application requirements.

  
Expanded
I2C slave serial interface
Interrupt function
Built-in Power ON Reset function
Supports 3V input/NMOS open drain output

Product Inquiries



GPIO ICs

Part No. Supply Voltage
(V)		 Num. of GPIO port Serial I/F Power ON Reset Num. of Slave Address Output format Package RoHS Distribution
Inventory
BU1850MUV 1.65 to 3.60 8 I2CBUS Yes 2 CMOS output,OPEN Drain output VQFN016V3030 Yes
NEW
BU1852GUW 		1.65 to 3.60 20 I2CBUS, Original Yes 2 CMOS output,OPEN Drain output VBGA035W040 Yes
BU8272GUW 1.65 to 3.45 20 2-wire - 2 CMOS output VBGA035W040 Yes