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AT89LP2052 Datasheet(PDF) 3 Page - ATMEL Corporation |
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AT89LP2052 Datasheet(HTML) 3 Page - ATMEL Corporation |
3 / 94 page 3 3547J–MICRO–10/09 AT89LP2052/LP4052 3. Pin Description Pin Symbol Type Description 1RST I I RST: External Active-High Reset input. VPP: Parallel Programming Voltage. Raise to 12V to enable programming. 2P3.0 I/O I P3.0: User-configurable I/O Port 3 bit 0. RXD: Serial Port Receiver input. 3P3.1 I/O O P3.1: User-configurable I/O Port 3 bit 1. TXD: Serial Port Transmitter output. 4XTAL2 O XTAL2: Output from inverting oscillator amplifier. 5XTAL1 I XTAL1: Input to the inverting oscillator amplifier and internal clock generation circuits. 6P3.2 I/O I P3.2: User-configurable I/O Port 3 bit 2. INT0: External Interrupt 0 input. 7P3.3 I/O I P3.3: User-configurable I/O Port 3 bit 3. INT1: External Interrupt 1input. 8P3.4 I/O I/O P3.4: User-configurable I/O Port 3 bit 4. T0: Timer 0 Counter input or PWM output 9P3.5 I/O I/O P3.5: User-configurable I/O Port 3 bit 5. T1: Timer 1 Counter input or PWM output 10 GND I Ground 11 P3.7 I/O O P3.7: User-configurable I/O Port 3 bit 7. SYSCLK: System Clock Output when System Clock Fuse is enabled. 12 P1.0 I/O I P1.0: User-configurable I/O Port 1 bit 0. AIN0: Analog Comparator Positive input. 13 P1.1 I/O I P1.1: User-configurable I/O Port 1 bit 1. AIN1: Analog Comparator Negative input. 14 P1.2 I/O P1.2: User-configurable I/O Port 1 bit 2. 15 P1.3 I/O P1.3: User-configurable I/O Port 1 bit 3 16 P1.4 I/O I P1.4: User-configurable I/O Port 1 bit 4. SS: SPI slave select. 17 P1.5 I/O I/O P1.5: User-configurable I/O Port 1 bit 5. MOSI: SPI master-out/slave-in. When configured as master, this pin is an output. When configured as slave, this pin is an input. 18 P1.6 I/O I/O P1.6: User-configurable I/O Port 1 bit 6. MISO: SPI master-in/slave-out. When configured as master, this pin is an input. When configured as slave, this pin is an output. 19 P1.7 I/O I/O P1.7: User-configurable I/O Port 1 bit 7. SCK: SPI Clock. When configured as master, this pin is an output. When configured as slave, this pin is an input. 20 VCC I Supply Voltage |
Similar Part No. - AT89LP2052_14 |
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Similar Description - AT89LP2052_14 |
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