ATTINY13A-MU - 20MHz 8-Bit AVR MCU | Microchip
Référence : ATTINY13A-MU ✓ ActifATTINY13A-MU Présentation
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, peripherals, and input/output pins into one device. The ATtiny13A belongs to the TinyAVR family, which is part of Microchip's 8-bit AVR portfolio and is commonly used for compact control tasks. Its enhanced RISC architecture executes many instructions in one clock cycle, allowing performance approaching 1 MIPS per MHz while helping designers balance processing throughput against power consumption.
The principal features of the ATTINY13A-MU include 20 MHz operation, 1 KB of Flash memory, 64 bytes of EEPROM, 64 bytes of SRAM, and a four-channel 10-bit analog-to-digital converter. The picoPower architecture is designed for low-power embedded systems. Peripherals identified for the ATtiny13A family include brown-out detection and reset, power-on reset, PWM, and a watchdog timer, while the product page also identifies In-System Programming support.
The AVR enhanced RISC core provides an 8-bit processing platform with up to 20 MIPS throughput at 20 MHz. The 1 KB Flash capacity accommodates compact firmware, while the 64-byte EEPROM supports nonvolatile parameter storage and the 64-byte SRAM handles working data. The ADC provides four 10-bit channels for measurements from sensors, switches, resistive dividers, and simple analog interfaces. Operating voltage is stated as 1.8 V to 5.5 V, allowing integration with both low-voltage and conventional 5 V systems.
Typical uses include compact LED controllers, simple sensor interfaces, button-driven controls, battery-operated accessories, hobby projects, and small embedded automation nodes. The four ADC channels are particularly useful when a design must monitor several analog quantities without adding a separate converter. ISP programming makes the device suitable for small production runs and prototype boards because firmware can be loaded through the programming interface after assembly.
Designers should account for the limited 1 KB Flash and 64-byte SRAM when selecting a programming toolchain and organizing firmware. The I/O budget and analog channel requirements must also be checked against the exact 20-QFN-EP pin arrangement. Use the manufacturer pin-description table and package drawing during PCB layout, and confirm all operating conditions against the device's specified voltage and frequency limits.
This product analysis combines the manufacturer specifications with practical guidance for firmware sizing, programming, analog measurement, and compact PCB design. It also distinguishes the ATTINY13A-MU from package variants and larger ATtiny devices whose memory, speed, or pin count changes the replacement decision.
Alternatives de remplacement direct pour ATTINY13A-MU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesATTINY13A-MU Valeurs maximales et caractéristiques électriques
| Product Type | 8-bit RISC-based microcontroller |
| Architecture | AVR enhanced RISC |
| Core Width | 8 bit |
| Maximum CPU Frequency | 20 MHz |
| Maximum Throughput | 20 MIPS at 20 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Flash Memory | 1 KB (512 x 16 bytes) |
| EEPROM Memory | 64 bytes |
| SRAM Memory | 64 bytes |
| Register File | 32 bytes |
| ADC Resolution | 10 bit |
| ADC Channel Count | 4 channels |
| Architecture Feature | picoPower |
| Process Technology | Low-power CMOS |
| Boîtier | 20-QFN-EP, 4 mm x 4 mm |
| Type de montage | Surface mount |
| Programming Interface | In-System Programming |
| Brown-Out Detection | Supported |
| Power-On Reset | Supported |
| Pulse-Width Modulation | Supported |
| Watchdog Timer | Supported |
Guide de configuration des broches du ATTINY13A-MU 20-qfn-ep, 4 mm x 4 mm
Configuration des broches du ATTINY13A-MU (boîtier 20-qfn-ep, 4 mm x 4 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATTINY13A-MU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATTINY13A-MU convient pour 6 applications: Compact LED Control, Low-Voltage Sensor Node, Battery-Powered Indicator, Button and Switch Interface, Simple Analog Monitoring, Educational AVR Prototype.
Compact LED Control
The ATTINY13A-MU is suitable for compact LED dimming, sequencing, and status-control circuits because its 20 MHz AVR core can execute timing and control logic with low latency. PWM support can generate a modulated drive signal without relying on continuous software timing. The 1 KB Flash limit favors a compact state machine, while the six general-purpose I/O resources should be allocated carefully between LEDs, buttons, and optional status indicators. The 20-QFN-EP footprint also reduces board area compared with larger leaded packages.
Recommandé
Low-Voltage Sensor Node
The ATTINY13A-MU fits low-voltage sensor nodes that need local conditioning and control without a higher-cost microcontroller. Its four-channel 10-bit ADC can sample resistive dividers, switches, and basic analog sensors, while operation from 1.8 V to 5.5 V supports both low-energy and 5 V powered designs. Designers should keep interrupt and sampling code compact because only 64 bytes of SRAM and 1 KB of Flash are available. Low-power operation remains appropriate when the selected sensor can be duty-cycled.
Recommandé
Battery-Powered Indicator
A battery-powered status indicator can use the ATTINY13A-MU to monitor a battery-derived voltage and drive LEDs or a small actuator. The low-power CMOS design and 1.8 V to 5.5 V operating range suit compact energy-limited products, while the 10-bit ADC supports threshold measurements without an external indicator circuit. The design must include the application-specific battery limits and should use shutdown or sleep behavior where supported by the firmware. Firmware size must remain within the 1 KB Flash capacity.
Recommandé
Button and Switch Interface
The ATTINY13A-MU can implement compact button, rotary-switch, or mode-selection interfaces for appliances and accessories. Its 8-bit AVR architecture executes debounce and state-machine logic efficiently, and the 20 MHz operating rate provides ample response for ordinary human-interface tasks. The limited memory footprint favors direct register-level configuration and short firmware, particularly when several functions must coexist. Use the package pin table to map inputs and outputs and retain pull-up or pull-down arrangements that suit the intended switch topology.
Recommandé
Simple Analog Monitoring
The ATTINY13A-MU is appropriate for simple analog monitoring systems that must evaluate several inputs and trigger a discrete output. Four 10-bit ADC channels provide enough resolution for many resistive sensors, potentiometers, and threshold circuits, while brown-out detection and power-on reset support dependable startup behavior. Applications requiring higher accuracy, more channels, or faster conversion should use a dedicated ADC or larger MCU. For this device, average repeated readings to improve stability and keep calculation code concise.
Recommandé
Educational AVR Prototype
The ATTINY13A-MU provides a practical platform for learning GPIO control, timers, ADC conversion, interrupts, and In-System Programming. Its small 20-QFN-EP package teaches fine-pitch PCB layout, while the limited memory encourages efficient code organization and makes the program size visible to the learner. AVR-compatible tools and the ATtiny13A core can be used for project development. Because the footprint is difficult to hand-wire, a programmed carrier board or professionally assembled PCB is preferable for initial prototypes.
Recommandé
Données de référence d'ingénierie pour ATTINY13A-MU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Package | 20-QFN-EP (4 mm x 4 mm) |
| Brand | Microchip Technology |
| Core | 8-bit AVR enhanced RISC |
| Maximum CPU Frequency | 20 MHz |
| Maximum Throughput | 20 MIPS at 20 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Flash Memory | 1 KB (512 x 16 bytes) |
| EEPROM Memory | 64 bytes |
| SRAM Memory | 64 bytes |
| ADC | 4 channels, 10-bit resolution |
Principaux différenciateurs
- Balanced low-cost control with integrated analog conversion (vs ATtiny13A-SU)
- Compact 4 mm by 4 mm footprint (vs ATTINY13A-PU)
- Higher clock rate than smaller ATtiny9 alternatives (vs ATTINY9-MAH)
Notes de conception
Treat the 20-QFN-EP as a fine-pitch assembly design. Place the device on a PCB with a controlled thermal profile, route all exposed-pad and ground connections according to the manufacturer package drawing, and avoid placing tall parts where they can interfere with assembly tooling. Verify the land pattern against the 4 mm by 4 mm package dimensions before release.
Do not plan around the memory of a larger ATtiny device. The ATTINY13A-MU has only 1 KB of Flash and 64 bytes of SRAM, so library code, interrupt vectors, stack usage, and buffered data must be checked before compilation is considered final. The four-channel ADC can also consume registers and processing time; use short routines and avoid unnecessary floating-point operations.
Design the supply for the full 1.8 V to 5.5 V operating range while observing the exact current limits and output-voltage conditions in the manufacturer datasheet. Place the required bypass capacitance close to the supply and ground pins, and account for voltage drop across traces or source resistance. Brown-out and power-on reset behavior should be checked against the minimum voltage expected during startup and load transitions.
Assign analog inputs away from switching nodes and high-current return paths when possible. Keep the analog ground reference and sensor traces short, avoid routing them beneath digital clocks, and use a quiet ground path when the application measures low-level signals. The four ADC channels are useful, but their practical accuracy still depends on source impedance, filtering, grounding, and firmware averaging.
Informations de conformité
No definitive RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement was identified for the exact MPN. AEC-Q100 qualification is not stated and should not be assumed for this standard product.
