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AT89S8253-24JU 8051 89S8-BIT 24MHZ 12KB (12K X 8) FLASH 44-PLCC (16.59X16.59)
Specifications
SKU: 8951484
| Parameter | Description | Value |
|---|---|---|
| Device Name | Microcontroller Model | AT89S8253-24JU |
| Architecture | CPU Architecture | 8051 |
| Bit Width | Data Bus Width | 8-bit |
| Clock Frequency | Maximum Clock Speed | 24 MHz |
| Flash Memory | Program Memory Size | 12 KB (12K x 8) |
| Package Type | Package Form Factor | 44-Pin PLCC (Plastic Leaded Chip Carrier) |
| Package Dimensions | Physical Size | 16.59 mm x 16.59 mm |
| I/O Pins | Number of I/O Pins | 32 |
| Timers/Counters | Number of Timers/Counters | 3 |
| Serial Communication | UARTs | 1 |
| Interrupt Sources | Number of Interrupt Sources | 6 |
| Operating Voltage | Supply Voltage Range | 4.5 V to 5.5 V |
| Operating Temperature | Operating Temperature Range | -40°C to +85°C |
| Power Consumption | Typical Power Consumption (at 24 MHz) | 120 mA |
| Watchdog Timer | Watchdog Timer Availability | Yes |
| Low Power Modes | Low Power Modes | Idle, Power Down |
| Programming Interface | In-System Programming (ISP) | Yes |
| Programming Voltage | ISP Programming Voltage | 5 V |
| Erase Method | Flash Erase Method | Bulk Erase |
| Endurance | Write/Erase Cycles | 10,000 cycles |
| Data Retention | Data Retention Time | 10 years |
Instructions for Use
Power Supply:
- Connect the Vcc pin (pin 40) to a 4.5 V to 5.5 V power supply.
- Connect the GND pin (pin 20) to ground.
Clock Configuration:
- For a 24 MHz operation, connect a 24 MHz crystal oscillator between XTAL1 (pin 19) and XTAL2 (pin 18).
- Alternatively, use an external clock source by connecting it to XTAL1 and leaving XTAL2 unconnected.
Reset Circuit:
- Connect a reset circuit to the RST pin (pin 9). A typical reset circuit includes a 10 kΩ pull-up resistor to Vcc and a 10 μF capacitor from RST to GND.
Program Memory:
- The device can be programmed using in-system programming (ISP) via the P3.0 (RXD), P3.1 (TXD), and RST pins. Ensure the programming voltage is 5 V.
I/O Ports:
- The microcontroller has four 8-bit I/O ports (P0, P1, P2, P3). Each port can be configured as input or output.
- P0 and P2 can also be used for address/data multiplexing when interfacing with external memory or peripherals.
Timers/Counters:
- Configure the timers/counters using the Timer Control Registers (TCON, TMOD) to set up modes and start/stop operations.
Serial Communication:
- Use the UART interface (P3.0 for RXD and P3.1 for TXD) for serial communication. Configure the baud rate using the Baud Rate Generator (Timer 1).
Interrupts:
- Enable interrupts by setting the appropriate bits in the Interrupt Enable Register (IE) and configure the interrupt priority using the Interrupt Priority Register (IP).
Low Power Modes:
- Enter low power modes by executing the appropriate instructions (e.g.,
IDLEfor idle mode,POWERDOWNfor power-down mode).
- Enter low power modes by executing the appropriate instructions (e.g.,
Watchdog Timer:
- Enable the watchdog timer by setting the WDT control bit in the Special Function Register (SFR) and configure the timeout period as needed.
Data Retention:
- Ensure that the device is not exposed to extreme temperatures or high humidity to maintain data retention for up to 10 years.
Handling Precautions:
- Handle the device with care to avoid static discharge, which can damage the internal circuits.
- Store the device in an anti-static bag when not in use.
For detailed programming and application notes, refer to the official datasheet and application notes provided by Atmel (now part of Microchip Technology).
(For reference only)Inquiry - AT89S8253-24JU 8051 89S8-BIT 24MHZ 12KB (12K X 8) FLASH 44-PLCC (16.59X16.59)
