VCC Supply voltage VSS Circuit ground Port 0 Port 0 is an 8-bit open drain bidirectional I O port As an output port each pin can sink several inputs Port 0 pins that have 1’s written to them float and in that state can be used as high-impedance inputs Port 0 is also the multiplexed low-order address and data bus during accesses to external Program and Data .
of the MCS-51 Family as listed below Port Pin P3 0 P3 1 P3 2 P3 3 P3 4 P3 5 P3 6 P3 7 Alternate Function RXD (serial input port) TXD (serial output port) INT0 (external interrupt 0) INT1 (external interrupt 1) T0 (Timer 0 external input) T1 (Timer 1 external input) WR (external data memory write strobe) RD (external data memory read strobe) PIN DESCRIPTIONS VCC Supply voltage VSS Circuit ground Port 0 Port 0 is an 8-bit open drain bidirectional I O port As an output port each pin can sink several inputs Port 0 pins that have 1’s written to them float and in that state can be used as high-impe.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | 8XL51FA |
Intel Corporation |
LOW VOLTAGE CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS | |
2 | 8XL196NP |
Intel Corporation |
COMMERCIAL CHMOS 16-BIT MICROCONTROLLER | |
3 | 8X20xx |
Fujisoku |
Llluminated Rocker Switches | |
4 | 8X305 |
ETC |
Signetics Microcontroller Products | |
5 | 8X305A |
ETC |
Signetics Microcontroller Products | |
6 | 8X305I |
ETC |
Signetics Microcontroller Products | |
7 | 8X305N |
ETC |
Signetics Microcontroller Products | |
8 | 8X350 |
Signetics |
2048-Bit Bipolar RAM | |
9 | 8X930AX |
Intel Corporation |
UNIVERSAL SERIAL BUS MICROCONTROLLER | |
10 | 8X930HX |
Intel Corporation |
UNIVERSAL SERIAL BUS HUB PERIPHERAL CONTROLLER | |
11 | 8X931AA |
Intel Corporation |
UNIVERSAL SERIAL BUS PERIPHERAL CONTROLLERS | |
12 | 8x931HA |
Intel Corporation |
UNIVERSAL SERIAL BUS PERIPHERAL CONTROLLERS |