HT99C410/HT99C411 Cordless Phone Controller Features • • • • • • • • Provide mask type or OTP type version Operating voltage: 2.
4V~5.
2V (mask type), 3.
0V~5.
2V (OTP type) 24 bidirectional I/O lines One interrupt input One 8-bit and one 16-bit programmable timer/event counters with overflow interrupt On-chip crystal and RC oscillator Watchdog timer 4K × 15 program memory ROM • • • • • • • • • 160 × 8 data memory RAM Halt function and wake-up feature reduce power consumption 63 powerful instructions Up to 1µs instruction cycle with 4MHz system clock at VDD=5V All instructions in 1 or 2 machine cycles 15-bit table read instructions Four-level subroutine nesting Bit manipulation instructions ...

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