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4-bit CPU with 32 instructions
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Operating voltage from 1.8V ~ 5.5V
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170 seconds voice capacity are provided (@6KHz sampling rate)
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12 flexible I/O pads, 12 pads with large current control
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448K x 10-bit ROM and 120 x 4-bit SRAM
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1-Ch speech synthesizer
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Support halt 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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Internal or external RC oscillator for system clock
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16-level volume control
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10-bit PWM
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