ATTINY13A-PU - 20MHz 8-Bit AVR MCU | Microchip
Référence : ATTINY13A-PU ✓ ActifATTINY13A-PU Présentation
An 8-bit microcontroller is a programmable semiconductor that executes instructions from embedded flash memory and uses registers, SRAM, and peripherals to control a system. The ATtiny13A belongs to the TinyAVR family within the AVR architecture and provides a practical balance of processing speed, memory, analog measurement, and low power operation for cost-sensitive embedded products. Its small pin count makes it especially useful where board area and simplicity are important.
Core resources include 1 KB of flash, 64 bytes of SRAM, 64 bytes of EEPROM, and a 32-byte register file. The four-channel 10-bit ADC supports analog sensing, while the AVR enhanced RISC architecture executes instructions in a single clock cycle. At 20 MHz, the processor can approach 20 MIPS of instruction throughput under suitable operating conditions. In-system programming supports programming and reprogramming through the ICSP interface.
The device is based on a low-power CMOS process and uses the AVR enhanced RISC architecture. The picoPower implementation is intended to improve power efficiency relative to the original ATtiny13 while retaining a familiar programming model and peripheral arrangement. A limited 1 KB flash capacity favors compact control routines, pin-change interrupts, timers, communication state machines, and other tasks that do not require a large application framework.
Typical uses include LED lighting controls, small motor or actuator controllers, simple keypads, compact sensor interfaces, teaching boards, and low-cost embedded products. The four ADC channels make the device useful for reading resistive or analog sensors, while its GPIO pins can operate digital inputs and outputs. The 8-PDIP format also simplifies breadboard prototyping, hand assembly, repair, and educational experiments.
Designers should allocate the small SRAM carefully and avoid duplicating library functions that consume substantial flash. Place the decoupling capacitor close to VCC, use the reset and programming pins according to the manufacturer data sheet, and verify ADC input limits against the selected operating voltage. When timing, brown-out detection, or power-consumption behavior is important, review the device-specific electrical characteristics before production release.
This product record combines the manufacturer data sheet, programming resources, package information, and application-oriented guidance. It also identifies the clearest same-package drop-in alternative and explains the hardware and software checks that should accompany any replacement decision.
Alternatives de remplacement direct pour ATTINY13A-PU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATTINY13A-PU (même facteur de forme et même empreinte) — différant par Architecture, Flash Memory.
ATTINY13-20PU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATTINY13A-PU Valeurs maximales et caractéristiques électriques
| Microcontroller Type | 8-bit AVR microcontroller |
| Architecture | AVR enhanced RISC |
| Fréquence d'horloge maximale | 20 MHz |
| Maximum Throughput | 20 MIPS at 20 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Flash Memory | 1 KB |
| Program Memory Organization | 512 x 16 words |
| EEPROM | 64 bytes |
| SRAM | 64 bytes |
| Register File | 32 bytes |
| ADC Resolution | 10 bits |
| ADC Channel Count | 4 channels |
| Process Technology | Low-power CMOS |
| Boîtier | 8-PDIP |
| Programming Interface | In-system programming via ICSP |
| Type de montage | Through-hole |
Configuration des broches de ATTINY13A-PU
| Broche 1 | PC2 — GPIO and ADC input |
| Broche 2 | PC3 — GPIO and ADC input |
| Broche 3 | GND — Ground reference |
| Broche 4 | RESET / PB4 — Reset input and alternate PB4 GPIO function |
| Broche 5 | PB3 — General-purpose I/O and ADC input |
| Broche 6 | PB2 — General-purpose I/O and ADC input |
| Broche 7 | PB1 — General-purpose I/O and ADC input |
| Broche 8 | VCC — Power supply input |
Applications typiques
ATTINY13A-PU convient pour 6 applications: Compact LED Lighting Controller, Small Motor and Actuator Control, Analog Sensor Interface, Battery-Powered IoT Sensor Node, Educational Electronics and Maker Board, Appliance Button and Status Interface.
Compact LED Lighting Controller
The ATTINY13A-PU suits small LED lighting modules because it combines a 20 MHz AVR core with a four-channel 10-bit ADC and enough GPIO for switch inputs and dimming outputs. The microcontroller can evaluate analog control signals, update multiple LED channels, and apply timer-based fading without requiring a larger controller. Its low-power CMOS implementation is useful when the product spends most of its time idle. The 1 KB flash limit requires compact routines, and the 64-byte SRAM should be checked carefully against buffering requirements.
Recommandé
Small Motor and Actuator Control
ATTINY13A-PU can serve as the controller in a small stepper, relay, or actuator subsystem where a compact 8-pin controller and deterministic timing are more important than large memory capacity. Timers and GPIO outputs can generate control sequences, while the four ADC channels can monitor current or position-related analog signals. Because the device has only 64 bytes of SRAM and 1 KB of flash, firmware should use compact state machines and avoid large motion libraries.
Recommandé
Analog Sensor Interface
The four-channel, 10-bit ADC in ATTINY13A-PU enables compact interfaces for resistive sensors, potentiometers, dividers, and simple analog feedback loops. Operating from 1.8 V to 5.5 V allows the microcontroller to fit both low-voltage and conventional 5 V systems. Designers must confirm that sensor voltages remain within the ADC input range and account for acquisition time and source impedance. The limited 1 KB flash and 64-byte SRAM favor direct measurement routines over elaborate data-processing frameworks.
Recommandé
Battery-Powered IoT Sensor Node
ATTINY13A-PU is appropriate for a small battery-operated IoT node that periodically wakes, reads a sensor, updates an indicator, and sleeps again. Its picoPower architecture is designed to improve low-power operation, while the 20 MHz clock provides enough performance for short foreground tasks. The 8-PDIP package simplifies prototype construction and rework. Battery life still depends on the chosen sleep mode, sensor load, GPIO leakage, and firmware behavior, which must be evaluated as a complete system rather than from processor clock data alone.
Recommandé
Educational Electronics and Maker Board
ATTINY13A-PU is well suited to breadboard-based electronics education because its 8-PDIP form exposes the MCU, supply, reset, programming, and I/O connections without requiring a fine-pitch PCB. Students can learn GPIO control, timers, ADC conversion, serial output, and ISP programming with a small footprint. The part can also be programmed through the Arduino IDE using suitable AVR tooling and the correct board definition. The 1 KB flash limit encourages concise examples and makes compilation-size awareness part of the learning experience.
Recommandé
Appliance Button and Status Interface
ATTINY13A-PU can implement a compact keypad, status-indicator, or simple appliance-control interface. Its GPIO resources support button scanning and LED indication, while the ADC may be used for analog switch or feedback monitoring. The 20 MHz AVR core provides quick response without requiring an external processor, and the through-hole package is practical for hand assembly and field replacement. Firmware should include debouncing and state handling, while keeping stack and SRAM use within the device's 64-byte memory limit.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATTINY13A-PU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATTINY13-20PU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 8-PDIP | 8-PDIP - same package |
| Core | 8-bit AVR enhanced RISC | 8-bit AVR |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Programming Interface | In-system programming via ICSP | In-system programming via ICSP |
Principaux différenciateurs
- PicoPower implementation within the same legacy footprint (vs ATTINY13-20PU)
- Direct 20 MHz same-package substitution path (vs ATTINY13-20PU)
- Compact ADC-equipped control platform (vs ATTINY13-20PU)
Notes de conception
Place the required supply-decoupling capacitor close to the VCC and GND pins, and keep the analog and digital return path compact. For battery-powered products, compare active, idle, and sleep current using the same clock, voltage, and GPIO configuration. The picoPower architecture can reduce consumption in suitable modes, but total system life is also affected by sensor leakage, pull resistors, and external circuitry.
Reserve the ICSP signals and follow the manufacturer connector recommendation when designing the programming header. Maintain clearances around exposed ICSP pads and avoid routing high-current or switching-node copper across the analog inputs. Since the ATtiny13A-PU uses an 8-PDIP footprint, verify every assigned signal against the manufacturer pin table before releasing artwork; RESET and PB4 share a physical pin.
Do not treat the 1 KB flash and 64-byte SRAM limits as negligible. Large Arduino or C library portions may exceed the available program space, and stack-heavy interrupt routines can exhaust SRAM. Compile early, inspect map and memory-use reports, and remove duplicate library functionality. When replacing an ATtiny13 with the ATtiny13A, also retest brown-out detection, power-on reset, ADC behavior, and timing-sensitive outputs.
Keep ADC sources within the permitted input range at the selected operating voltage and account for source impedance during conversion. Route the analog input away from switching nodes and provide a stable reference configuration. For pulse-width or timer-driven outputs, confirm pin multiplexing and timer resources in the manufacturer pin and register descriptions; the limited I/O count makes an incorrect alternate-function assignment easy to overlook.
Informations de conformité
No explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status is stated for the exact ATTINY13A-PU ordering code. Obtain the current manufacturer product compliance declarations before production release.