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AT89LP51RD2-20PU
+NomenclatureIC MCU 8BIT 64KB FLASH 40DIP
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FabricantTechnologie de micropuce
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Pièce fabricant #AT89LP51RD2-20PU
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Fiche technique AT89LP51RD2-20PU DataSheet
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Package PDIP-40
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En stock7220
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Spécifications
| Attribut | Valeur |
| Package / Case | Tube |
| Series | 89LP |
| Part Status | Active |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | EBI/EMI, I²C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 37 |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 2.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 5.5V |
| Data Converters | A/D 7x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole |
Présentation
Description
The AT89LP51RD2-20PU supports both 8-bit and 16-bit arithmetic operations and offers enhanced performance over standard 8051 devices due to its single-cycle instruction execution. It includes versatile programming options such as in-system programming (ISP) and in-application programming (IAP). The microcontroller is suitable for embedded control applications that require efficient processing power with minimal power consumption. Additionally, it can operate over a voltage range of 2.4V to 5.5V, making it adaptable for various power supply conditions.
Equivalent
Features
The AT89LP51RD2-20PU supports dual data pointers for efficient handling of data transfers and offers a rich set of peripherals, including a programmable counter array, two UARTs for serial communication, and multiple timers for time-sensitive tasks. Additionally, it has an enhanced SPI for high-speed communication and an I2C-compatible interface for connecting to other devices.
This microcontroller is part of a 40-pin PDIP package, ensuring compatibility with various development boards and easy integration into existing systems. It includes power-saving modes to reduce power consumption, making it suitable for battery-operated devices. It also features a watchdog timer for system reliability and recovery from unforeseen errors.
Pinout
1. VCC and GND: Power supply and ground pins.
2. Ports 0, 1, 2, and 3: General-purpose I/O ports. These ports can also serve alternate functions such as timers, serial communication, and interrupts.
3. Port 0: Functions as a multiplexed low-order address and data bus during external memory access.
4. Port 1: Can provide additional I/O or serve special functions like analog inputs for ADC.
5. Port 2: Used as a high-order address bus during external memory access.
6. Port 3: Contains control signals (e.g., RD, WR) and serial communication lines (TXD, RXD).
7. RST: Reset input.
8. EA: External Access Enable, used when accessing external program memory.
9. ALE/PROG: Address Latch Enable for demultiplexing the address-data bus; also used for programming.
10. PSEN: Program Store Enable, used to read from external program memory.
These pins collectively enable the AT89LP51RD2 to interface with various peripherals and manage data processes effectively.