HD4074448 Description
The HD404449 Series is a HMCS400-series microputer designed to increase program productivity with large-capacity memory. Each microputer has four timers, two serial interfaces, A/D converter, input capture circuit, 32-kHz oscillator for clock, and four low-power dissipation modes. The HD404449 Series includes three chips:.
HD4074448 Key Features
- 1,152-digit × 4-bit RAM
- 64 I/O pins, including 10 high-current pins (15 mA, max)
- Four timer/counters
- Eight-bit input capture circuit
- Three timer outputs (including two PWM outputs)
- Two event counter inputs (including one double-edge function)
- Two clock-synchronous 8-bit serial interfaces
- A/D converter (4-channel × 8-bit)
- Built-in oscillators Main clock: 4-MHz ceramic oscillator or crystal (an external clock is also possible) Subclock:
- Eleven interrupt sources Four by external sources, including two double-edge function Seven by internal sources