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4-bit CPU with 32 instructions
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Operating voltage from 2.2V ~ 5.5V
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850 seconds voice capacity are provided (@6KHz sampling rate)
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24 flexible I/O pads, 12 pads with large current control
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2240K x 10-bit ROM and 184 x 4-bit SRAM
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1-Ch speech synthesizer and dual-tone melody
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Built-in 4-Ch analog to digital converter with 8-bit resolution
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Built-in internal constant voltage reference
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Support halt mode and standby mode
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Provide low voltage reset, watchdog reset and external port reset
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Configurable inferred carrier option
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RC or crystal oscillator for system clock
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16-level volume control
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10-bit PWM and 12-bit DAC audio output
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