ATMEGA8L-8AU
Part Number: ATMEGA8L-8AU
Manufacturer: Microchip Technology / Atmel
Description: 8-bit Microcontrollers – MCU 8kB Flash 0.5kB EEPROM 23 I/O Pins
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ATMEGA8L-8AU is an AVR RISC-based low-power CMOS 8-bit microcontroller. Throughputs of over 1 MIPS per MHz are delivered by the ATMEGA8L-8AU thanks to its ability to carry out powerful instructions in a single clock cycle. This enables system designers to strike a healthy balance between power consumption and processing performance.
ATMEGA8L-8AU Features
High-performance, Low-power Atmel®AVR® 8-bit Microcontroller
- It has an Advanced RISC Architecture built into it.
- It has 130 effective instructions, most of which may be executed in a single clock cycle.
- It has a general-purpose working register that is 32 by 8 in size.
Completely Static Mode of Operation
- It has a throughput of up to 16MIPS at a clock speed of 16MH.
- It has On-chip 2-cycle Multiplies built right in.
High Endurance Non-volatile Memory Segments
- Features 8Kbytes of internal flash memory for programs that can be customized EEPROM of 512 bytes.
- It has a 1K internal SRAM byte.
- It features 10,000 Flash/100,000 EEPROM write/erase cycles.
- It can retain data for 20 years at 85°C and 100 years at 25°C (1)
- It has a choice of Independent Lock Bits and Boot Code Sections.
- It has an On-Chip Boot Program for In-System Programming.
- It operates in True Read-While-Write Mode.
- This product has a programming lock for software security.
Peripheral Features
- It has two separate 8-bit timers/counters with prescales and a compare mode.
- One 16-bit Timer/Counter with a Separate Prescaler, Compare Mode, and Capture are included.
Mode
- It has a separate oscillator and a real-time counter.
- There are three PWM channels on it.
- 8-channel ADC in TQFP and QFN/MLF packaging is one of its features.
- Features (8) Channels 10-bit precision.
- Features a PDIP package with a 6-channel ADC.
Special Microcontroller Features
- Power-on Reset and Programmable Brown-out Detection are both features.
- It has an internal RC oscillator calibrated and internal and external interrupt sources.
- It has five sleep settings: idle, power-down, power-save, ADC noise reduction, and standby.
Pin Descriptions
VCC Digital supply voltage.
GND Ground.
Port B (PB7..PB0) XTAL1/XTAL2/TOSC1/ TOSC
I/O port B is an 8-bit bidirectional port that contains pull-up resistors on the inside of the device (selected for each bit). The output buffers for Port B feature symmetrical driving characteristics, which means they have a strong capability to both sink and source. If the pull-up resistors are enabled, the Port B pins externally pulled low will function as inputs and source current. Even though the clock is not operating, the Port B pins will be tri-stated if a reset condition is active.
Depending on the settings of the clock selection fuse, PB6 can either serve as an input to the inverted oscillator amplifier or serve as an input to the operating circuit of the internal clock. PB7 is an input that can be utilized as an output from the inverting Oscillator amplifier. This depends on the settings of the clock selection fuse. If the AS2 bit in ASSR is set, PB7..6 will be used as the TOSC2..1 input for the Asynchronous Timer/Counter2 if the Internal Calibrated RC Oscillator is used as the source of the chip clock.
Port C (PC5..PC0)
I/O port C is a 7-bit bidirectional port that contains pull-up resistors on the inside of the device (selected for each bit). The output buffers for Port C feature symmetrical driving characteristics, meaning they have a high capability as both a sink and a source. If the pull-up resistors are engaged, the Port C pins externally pushed low will operate as current sources when used as inputs. Even if the clock is not operating, a reset condition will cause the pins of Port C to transition through all three states.
PC6/RESET
PC6 is converted into an input/output pin whenever the RSTDISBL Fuse is given a programming assignment. It is important to note that the electrical characteristics of PC6 diverge from those of the other pins in Port C. If the RSTDISBL Fuse has not been configured, the PC6 port will function as the reset input. Even if the clock is not active, a reset will be triggered if the level on this pin is low for a time that is more than the minimum pulse length.
Port D (PD7..PD0)
I/O port D is an 8-bit bidirectional port that contains pull-up resistors on the inside of the device (selected for each bit). The output buffers for Port D are symmetrical in their drive characteristics and have a high capability for both sinking and source operation. If the pull-up resistors are activated, the Port D pins externally pulled low will act as current sources when used as inputs. Even if the clock is not operating, a reset condition will cause the pins of Port D to transition through all three states.
RESET
Reset input. Even if the clock is not active, a reset will occur if the level on this pin is low for a longer period than the minimum pulse duration.
ATMEGA8L-8AU Specifications
| Technical | |
| Access Time | 8 µs |
| Address Bus Width | 8 b |
| Core Architecture | AVR |
| Data Bus Width | 8 b |
| Density | 64 kb |
| Frequency | 8 MHz |
| Interface | 2-Wire, I2C, SPI, UART, USART |
| Max Frequency | 8 MHz |
| Max Operating Temperature | 85 °C |
| Max Supply Voltage | 5.5 V |
| Memory Size | 512 B |
| Memory Type | EEPROM, FLASH |
| Min Operating Temperature | -40 °C |
| Min Supply Voltage | 2.7 V |
| Number of ADC Channels | 8 |
| Number of Bits | 8 |
| Number of I2C Channels | 1 |
| Number of I/Os | 23 |
| Number of Programmable I/O | 23 |
| Number of PWM Channels | 3 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 3 |
| Number of UART Channels | 0 |
| Number of USB Channels | 0 |
| Operating Supply Voltage | 5.5 V |
| Oscillator Type | Internal |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| RAM Size | 1 kB |
| Schedule B | 8542310000 |
| Watchdog Timer | Yes |
| Physical | |
| Case/Package | TQFP |
| Contact Plating | Tin |
| Mount | Surface Mount |
| Number of Pins | 32 |
| Dimensions | |
| Height | 1.05 mm |
| Length | 7.1 mm |
| Width | 7.1 mm |
| Compliance | |
| Lead-Free | Lead-Free |
| Radiation Hardening | No |
| REACH SVHC | No SVHC |
| Supply Chain |
ATMEGA8L-8AU Application
- Power Management
- Communications & Networking
- Consumer Electronics
ATMEGA8L-8AU Manufacturer
Microchip Technology, Inc. is a prominent provider of microcontrollers and analog semiconductors. The company serves thousands of customers worldwide, providing them with low-risk product development, decreased overall system costs, and a quicker time to market. The Chandler, Arizona-based company Microchip offers superior technical support in addition to dependable delivery and quality products.
Frequently Asked Questions
What is the total number of pins on the ATMEGA8L-8PU?
32 pins.
What is the temperature range that the ATMEGA8L-8PU operates in?
-40°C~85°C TA.
What kind of packaging does the ATMEGA8L-8PU come in?
32-TQFP.
What are the voltage supply requirements for the ATMEGA8L-8PU?
2.7V~5.5V.
What is the ATMEGA8L-8PU’s frequency?
8MHz.
Conclusion
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