4-bit CISC MCU, 2.25KB ROM, 20-Pin SSOP, 4MHz
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4-bit CISC MCU 2.25KB ROM, 20-Pin SSOP, 4MHz
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4-bit CISC MCU, 2.25KB ROM, 20-Pin SSOP, 4MHz, 2.5/3.3V
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4-bit CISC MCU, 2.25KB ROM, 20-Pin SSOP, 4MHz, 2.5V/3.3V
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