The 8-bit HCS08 microcontroller operates at up to 20 MHz from 1.8 V to 3.6 V over -40 °C to 85 °C. It integrates 8 KB flash, 512 bytes RAM, a 12-bit eight-channel ADC, analog comparator, timer/PWM, modulo timer, real-time counter, SCI and keyboard interrupt functions. Clocking is provided by an internal clock source with FLL support and an external oscillator input for low-frequency or high-frequency crystal and resonator ranges. Low-power operation includes low-power run and wait modes plus stop modes with typical stop current down to 250 nA at 3 V and 25 °C. Package options include 28-pin SOIC, 24-pin QFN and 16-pin TSSOP.
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| CPU core | 8-bit HCS08 |
| Maximum CPU frequency | 20MHz |
| Operating voltage | 1.8 to 3.6V |
| Operating temperature | -40 to 85°C |
| Flash memory | 8KB |
| RAM | 512bytes |
| GPIO count | 22 GPIO plus one input-only and one output-only pin |
| ADC resolution | 12bit |
| ADC channels | 8 |
| ADC conversion time | 2.5µs |
| Bus frequency | 10 maximumMHz |
| Internal reference frequency | 32.768 typical factory trimmedkHz |
| External oscillator low range | 32 to 38.4kHz |
| External oscillator high range | 1 to 16MHz |
| Run supply current | 5.60 typical, 6 maximum at 10 MHz, 3 V, all modules onmA |
| Stop2 supply current | 0.25 typical, 0.65 maximum at 3 V, -40 to 25 °CµA |
| Flash endurance | 10,000 minimum over -40 °C to 85 °Ccycles |
| Data retention | 15 minimumyears |
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