IS31IO7326
DESCRIPTION
The IS31IO7326 is a 64 key, key-scan controller. It offloads the burden of keyboard scanning from the host processor. The IS31IO7326 supports keypad matrix of up to 8×8. Key press and release events are encoded into a byte format and loaded into a key event register for retrieval by the host processor.
The IS31IO7326 integrates a debounce function which rejects false or transient key switch activities. The
_______ interrupt output (INT) is used to signify if there are any keypad activities.
To minimize power, the IS31IO7326 automatically enters a low power standby mode when there is no keypad, I/O, or host activity.
The IS31IO7326 is available in a Pb-free 4mm × 4mm QFN-24 package.
FEATURES
- 2.4V to 5.5V operation
- 400k Hz I2C serial interface
- Available for multi-key press detect
- Low 0.3μA (Typ.) standby current
- Operate in -40°C to +125°C
- Pb-free 4mm × 4mm QFN-24 package
- Ro HS & Halogen-Free pliance
- TSCA pliance
APPLICATIONS
- Keypad of QWERTY type phones
-...
