The PIC18F87K90 family of 8-bit microcontrollers, featuring nanoWatt XLP technology and the Charge Time Measurement Unit (CTMU) module, provide ideal solutions for battery-powered LCD applications utilizing touch interfaces. With 24 channels of capacitive touch sensing in an 80-pin package, these MCUs enable higher system integration – combining large segmented LCDs with the capability for a high number of touch sliders, buttons and keys or touch screen technology. Industry-leading low power operation exhibited by this family of microcontrollers helps to extend battery life in applications such as portable medical devices, thermostats, security systems, utility meters, small appliances, and electronic door locks.
Low Power Features
- nanoWatt XLP technology for low sleep, RTCC, LCD and WDT currents
- Low-Power BOR
- Ultra Low-Power Wake-Up
- Fast Wake-Up
- Low Input Leakage Currents
CPU
- Up to 16 MIPS Performance
- Operating Speed up to 64 MHz
- Operating Voltage Range: 1.8 to 5.5V
- 8 X 8 Single-Cycle Hardware Multiplier
- Three Internal Oscillators: 31 kHz, 500 kHz, 16 MHz
Peripherals
- LCD Driver
- Up to 48 Segments and 192 Pixels
- Drives LCD Panel in Sleep Mode
- Programmable LCD Timing Module
- Charge Time Measurement Unit for mTouch Sensing
- A/D Converter
- 12-bit Resolution
- 16 Channels
- Ten CCP/ECCP Modules
- Eleven 8/16-bit Timer/Counter Modules
- Three Analog Comparators
- Hardware Real-Time Clock and Calendar (RTCC)
- Two Master Synchronous Serial Port Modules
|
| Program Memory Type |
Flash |
| Program Memory (KB) |
128 |
| CPU Speed (MIPS) |
16 |
| RAM Bytes |
3,828 |
| Data EEPROM (bytes) |
1024 |
| Digital Communication Peripherals |
2-A/E/USART, 2-MSSP(SPI/I2C) |
| Capture/Compare/PWM Peripherals |
7 CCP, 3 ECCP |
| Timers |
6 x 8-bit, 5 x 16-bit |
| ADC |
16 ch, 12-bit |
| Comparators |
3 |
| Segment LCD (pixels) |
132 |
| Temperature Range (C) |
-40 to 125 |
| Operating Voltage Range (V) |
1.8 to 5.5 |
| Pin Count |
64 |
| XLP |
Yes |
| Cap Touch Channels |
16 | |
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