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LC877664B データシート(PDF) 11 Page - Sanyo Semicon Device |
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LC877664B データシート(HTML) 11 Page - Sanyo Semicon Device |
11 / 25 page LC877696B/80B/64B/48B No.A0965-11/25 Port Output Types The table below lists the types of port outputs and the presence/absence of a pull-up resistor. Data can be read into any input port even if it is in the output mode. Port Name Option Selected in Units of Option Type Output Type Pull-up Resistor 1 CMOS Programmable (Note) P00 to P07 1 bit 2 N-channel open drain No 1 CMOS Programmable P10 to P17 1 bit 2 N-channel open drain Programmable 1 CMOS Programmable P30 to P31 1 bit 2 N-channel open drain Programmable P70 - No N-channel open drain Programmable P71 to P73 - No CMOS Programmable P80 to P87 - No N-channel open drain No S0/PA0 to S31/PD7 - No CMOS Programmable COM0/PL0 to COM3/PL3 - No Input only No V1/PL4 to V3/PL6 - No Input only No XT1 - No Input only No XT2 - No Output for 32.768kHz crystal oscillator (Nch-open drain when in general-purpose output mode) No Note: Programmable pull-up resistors for port 0 are controlled in 4 bit units (P00 to 03, P04 to 07). *1 Connect the IC as shown below to minimize the noise input to the VDD1 pin. Be sure to electrically short the VSS1, VSS2, and VSS3 pins. *2 The internal memory is sustained by VDD1. If none of VDD2 and VDD3 are backed up, the high level output at the ports are unstable in the HOLD backup mode, allowing through current to flow into the input buffer and thus shortening the backup time. Make sure that the port outputs are held at the low level in the HOLD backup mode. Power supply LSI VDD1 For backup *2 VDD2 VDD3 VSS3 VSS2 VSS1 |
同様の部品番号 - LC877664B |
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同様の説明 - LC877664B |
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