BU1851GUW Datasheet - Rohm

GPIO ICs Series Key Encoder IC

BU1851GUW Features

* 1) Monitor up to 64-matrix keys 2) Under 5A Stand-by Current 3) Built-in Power On Reset 4) Ghost key rejection

* Absolute maximum ratings (Ta=25℃) Item Supply Voltage

* 1 Input voltage Storage temperature range Package power

* 1

* 2 Symbol VDD VI Tstg PD Value -0.3 ~ +4.5 -0.3 ~ VDD +

BU1851GUW General Description

Key Encoder IC can monitor up to 8x8 matrix (64 keys), which means to be adaptable to Qwerty keyboard. We adopt the architecture that the information of the only key which status is changed, like push or release, is encoded into the 8 bits data. This can greatly reduce the CPU load which tends to be.

BU1851GUW Datasheet (327.47 KB)