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Q67120-C0509 Datasheet(PDF) 8 Page - Siemens Semiconductor Group |
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Q67120-C0509 Datasheet(HTML) 8 Page - Siemens Semiconductor Group |
8 / 56 page SAB 80C515/80C535 Semiconductor Group 7 Pin Definitions and Functions Symbol Pin P-LCC-68 Pin P-MQFP-80 Input (I) Output (O) Function P4.0-P4.7 1-3, 5-9 72-74, 76-80 I/O Port 4 is an 8-bit bidirectional I/O port with internal pullup resistors. Port 4 pins that have 1’s written to them are pulled high by the internal pullup resistors, and in that state can be used as inputs. As inputs, port 4 pins being externally pulled low will source current (II L, in the DC characteristics) because of the internal pullup resistors. PE 4 75 I Power saving mode enable A low level on this pin enables the use of the power saving modes (idle mode and power-down mode). When PE is held on high level it is impossible to enter the power saving modes. RESET 10 1 I Reset pin A low level on this pin for the duration of two machine cycles while the oscillator is running resets the SAB 80C515. A small internal pullup resistor permits power-on reset using only a capacitor connected to VSS. VAREF 11 3 Reference voltage for the A/D converter VAGND 12 4 Reference ground for the A/D converter P6.7-P6.0 13-20 5-12 Port 6 is an 8-bit undirectional input port. Port pins can be used for digital input if voltage levels simultaneously meet the specifications for high/low input voltages and for the eight multiplexed analog inputs of the A/D converter. |
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