PT16557
PT16557 is Duty LCD Display Drivers manufactured by PTC.
DESCRIPTION
The PT16557 is 1/3 duty and 1/4 duty LCD display drivers that can directly drive up to 164 segments and can control up to four general-purpose output ports. These products also incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.
Features
- Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)
- 1/3 duty and 1/4 duty drive schemes can be controlled from serial data.
- 1/2 bias and 1/3 bias drive schemes can be controlled from serial data.
- Capable of driving up to 126 segments using 1/3 duty and up to 164 segments using 1/4 duty.
- Sleep mode and all segments off functions that are...
