Datasheet Details
| Part number | PT16557 |
|---|---|
| Manufacturer | PTC |
| File Size | 680.66 KB |
| Description | Duty LCD Display Drivers |
| Datasheet |
 PT16557 Datasheet
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General 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.
Key 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 controlled from serial data.
- Switching between key scan output and segment output can.