ATTINY424-XF - 20MHz 4KB AVR MCU | Microchip Technology
Teilenummer: ATTINY424-XF ✓ AktivATTINY424-XF Übersicht
A microcontroller is an integrated circuit that executes firmware, reads inputs, controls outputs, and manages system timing within one device. The ATTINY424 belongs to Microchip's tinyAVR 2 family, combining an 8-bit AVR CPU with embedded nonvolatile memory, SRAM, and Core Independent Peripherals. This hierarchy places it between simple logic controllers and larger application-specific microcontrollers.
The ATTINY424-XF provides 9-channel, 12-bit analog-to-digital conversion, allowing one device to acquire several analog inputs without requiring an external ADC. Its 20 MHz maximum operating frequency supports deterministic firmware execution, while 4 KB of Flash provides 4096 bytes for program storage. The 512-byte SRAM supports working variables and stack operations, and the 128-byte EEPROM provides nonvolatile data storage for configuration values or counters.
The 14-pin TSSOP package limits board area while retaining separate GPIO connections and analog inputs. The -XF ordering identifies the TSSOP package configuration in the relevant Microchip ordering system. Because this device combines an AVR CPU, ADC, EEPROM, and event-oriented peripherals in one compact package, it can reduce external component count and simplify firmware architecture compared with a discrete processor-and-converter design.
Typical applications include compact industrial controllers, digital thermometers, sensor-conditioning nodes, LED status panels, small motor-control modules, and low-cost consumer-control boards. The 12-bit ADC is particularly useful when the application requires more resolution than a basic digital threshold input but does not justify a larger mixed-signal microcontroller.
The primary design consideration is firmware capacity. A 4 KB Flash device is appropriate for compact control tasks, but code growth should be checked against the 4096-byte program-memory limit. Use the pin-description table in the manufacturer datasheet when assigning PCB tracks, and preserve the device's specified decoupling and programming connections around the TSSOP-14 footprint.
This product summary combines the manufacturer family specifications, orderable-part information, and practical implementation guidance. It adds application context, interface considerations, and same-family replacement guidance to help engineers evaluate the ATTINY424-XF before schematic capture or PCB layout.
Drop-in-Alternativen für ATTINY424-XF – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
ATTINY424-XSH
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATTINY824-XF
✅ Drop-In ⚠️ Spezifikationen ungeprüftPreis auf Anfrage
Datenblatt ansehen →ATTINY824-XSH
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
ATTINY424-XF Grenzwerte & elektrische Eigenschaften
| Product Type | 8-bit AVR microcontroller |
| Maximale Taktfrequenz | 20 MHz |
| CPU Architecture | AVR with hardware multiplier |
| Flash Memory | 4 KB |
| Program Memory Organization | 4K x 16-bit pages |
| SRAM | 512 bytes |
| EEPROM | 128 bytes |
| ADC Resolution | 12-bit |
| ADC Channels | 9 channels |
| Gehäuse | 14-pin TSSOP |
| Montageart | Surface mount |
| Maximum Operating Temperature | 125 °C |
| Programming Memory | In-system programmable Flash |
| Program Memory Organization | 4K x 16-bit pages |
ATTINY424-XF 14-pin tssop Pinbelegungsleitfaden
Pinbelegung für ATTINY424-XF (14-pin tssop-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für ATTINY424-XF.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
ATTINY424-XF ist geeignet für 6 Anwendungs: Compact Industrial Sensor Node, Digital Thermometer and Display Controller, Low-Cost LED Status Panel, Small Motor and Actuator Controller, Smart Home Sensor Interface, Consumer Control Module.
Compact Industrial Sensor Node
The ATTINY424-XF fits a compact sensor node because it combines a 20 MHz AVR processor, a 9-channel 12-bit ADC, 4 KB of Flash, and 512 bytes of SRAM in one 14-pin TSSOP package. The microcontroller can acquire several analog inputs, apply calibration and filtering, and publish results through its GPIO without requiring a separate ADC. Its 128-byte EEPROM can retain calibration constants or configuration data across power cycles. The design should budget the 4 KB program-memory limit, keep analog traces short, and use the datasheet pin-description table to assign ADC-capable pins.
Empfohlen
Digital Thermometer and Display Controller
The ATTINY424-XF is appropriate for a digital thermometer because its 12-bit ADC can sample a ratiometric or referenced sensor, while the AVR CPU performs conversion, filtering, and display updates. At up to 20 MHz, the device provides ample computation for temperature compensation, hysteresis, alarm thresholds, and button handling. The 512-byte SRAM supports display buffers and measurement variables, while the 128-byte EEPROM can preserve user settings. Keep the sensor input away from fast-switching signals, follow the ADC input recommendations, and verify that the final firmware remains within the 4 KB Flash limit.
Empfohlen
Low-Cost LED Status Panel
A compact LED status panel can use the ATTINY424-XF to decode inputs, manage indicator states, and implement blink patterns or timers without a larger controller. Its 20 MHz AVR core handles multiple GPIO-driven indicators efficiently, and the 4 KB Flash capacity is suitable for modest firmware with compact table-driven effects. The integrated 12-bit ADC can also monitor a light sensor or supply condition, allowing brightness adjustment or fault detection. GPIO current limits, total port current, and indicator-driver topology should be checked in the device documentation; use transistor drivers when the load exceeds a direct GPIO output.
Empfohlen
Small Motor and Actuator Controller
The ATTINY424-XF can serve as the supervisory controller in a small actuator or motor module, where it interprets limit switches, operates indicator outputs, and sequences discrete control events. Its 20 MHz AVR architecture allows responsive debouncing and state-machine execution, while the 9-channel 12-bit ADC can monitor current proxies, potentiometers, or temperature. The device should not directly drive loads beyond its specified GPIO limits; use suitable transistor or MOSFET stages and add protection for inductive or motor-generated transients. Firmware size and control timing must be validated against the 4 KB Flash and 512-byte SRAM resources.
Empfohlen
Smart Home Sensor Interface
The ATTINY424-XF is useful as a smart-home sensing endpoint when the required protocol and processing logic fit within 4 KB of Flash. It can read several analog sensors through its 9-channel 12-bit ADC, preprocess local measurements, and drive digital status or alarm outputs. A 512-byte SRAM and 128-byte EEPROM provide resources for short message buffers, operating counters, and persistent configuration. Low-power behavior, external sensor standby strategy, and communication-interface timing should be defined before release. The TSSOP-14 footprint supports compact boards, although continuous ADC use can increase power consumption compared with a duty-cycled acquisition design.
Empfohlen
Consumer Control Module
A consumer appliance or accessory control module can use the ATTINY424-XF for compact logic centered on an AVR CPU, GPIO, ADC, and nonvolatile configuration storage. The 20 MHz clock supports responsive button, timer, and menu logic, while the 128-byte EEPROM can retain configuration without consuming Flash. The integrated 12-bit ADC supports simple analog front ends such as potentiometers or sensor dividers. Because the ATTINY424-XF offers only 4 KB of program memory, developers should avoid large libraries and select compact state-machine implementations. Confirm operating-temperature, supply-voltage, and package requirements during qualification before volume release.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATTINY424-XF – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATTINY424-XSH | ATTINY824-XF | ATTINY824-XSH |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TSSOP-14 | TSSOP-14 - same | TSSOP-14 - same | TSSOP-14 - same |
| CPU Architecture | 8-bit AVR with hardware multiplier | 8-bit AVR with hardware multiplier | 8-bit AVR with hardware multiplier | 8-bit AVR with hardware multiplier |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 4 KB | 4 KB | 8 KB | 8 KB |
| SRAM | 512 bytes | 512 bytes | 512 bytes | 512 bytes |
| EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| ADC | 9-channel, 12-bit | 9-channel, 12-bit | 9-channel, 12-bit | 9-channel, 12-bit |
Wichtigste Unterscheidungsmerkmale
- Combines CPU, ADC, and persistent storage in a compact footprint (vs. ATTINY824-XSH)
- Direct 4 KB Flash configuration for compact embedded firmware (vs. ATTINY824-XF)
- Identified 125 °C maximum operating temperature (vs. ATTINY424-XSH)
Designhinweise
Place the device's decoupling network and programming-access connections directly beside the associated TSSOP-14 pins, and route analog-capable GPIO away from switching nodes. Keep the footprint consistent with the manufacturer's package drawing, including pin-1 orientation, exposed pad status, and land pattern. Because the part combines ADC inputs and debug or programming functions, trace geometry should minimize coupling between external signals and high-impedance analog channels.
Design the power rail from the manufacturer's electrical-characteristics table, including operating voltage, absolute maximum voltage, and current limits. Verify that the selected regulator can supply both average and transient current without violating the microcontroller's limits. If the board also powers motors, relays, or LEDs, separate noisy loads from the MCU rail and include suitable local filtering so switching transients do not corrupt ADC readings or cause unintended resets.
Do not treat the 4 KB Flash limit as unlimited: check the final linked binary size and reserve space for a bootloader, self-programming, or future fault handling. Likewise, account for stack depth against the 512-byte SRAM before adding nested interrupts or large local buffers. Avoid blocking delays when timing accuracy matters, and use the AVR timer facilities for debouncing, periodic ADC sampling, and other periodic events.
For analog measurements, use the datasheet's ADC acquisition guidance and keep the sensor source impedance within the supported range. Place analog ground and digital return paths so ADC currents do not share a noisy path with switching outputs. Add an RC filter when a sensor or long trace is susceptible to high-frequency interference, but recalculate the filter's settling time against the selected ADC sampling settings.
Compliance-Informationen
RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status require confirmation from the manufacturer product documentation or supplier declaration.
