ATTINY827-MF - 20MHz 8-bit AVR MCU, 8KB Flash, 24-VQFN | Microchip
MPN: ATTINY827-MF ✓ AktifATTINY827-MF Genel Bakış
A microcontroller is a self-contained computing element that integrates a CPU core, non-volatile program memory, working RAM and dedicated peripherals onto one die. The tinyAVR 2 family, to which the ATTINY827 belongs, extends that hierarchy from general-purpose MCU down to a compact 8-bit AVR core optimized for cost-sensitive embedded control. The ATTINY827 sits at the top of that family in memory density, giving small control boards real code space without moving to a 32-bit core.
Key features of the ATTINY827-MF include a hardware multiplier in the CPU core, 8 KB of Flash for program storage, 1 KB of SRAM for data, and 128 bytes of EEPROM for non-volatile parameter retention. The family uses the latest Core Independent Peripherals (CIPs) from Microchip, and the ATtiny827 variant additionally carries the serial and timer resources typically required for connected control nodes. The 24-VQFN land pattern at 4 x 4 mm keeps the footprint smaller than the equivalent 20- and 24-lead SOIC options, saving board area in densely packed appliances and sensor modules.
Because the CPU runs the classic AVR instruction set with a hardware multiplier, arithmetic-heavy loops such as PID updates or sensor compensation run without software multiplication routines. The tinyAVR 2 core combines that throughput with a low-power design that suits battery-operated and duty-cycled systems, while the CIP peripherals let functions such as timers, comparators and communication modules be routed to pins without heavily loading the CPU.
Typical applications include small motor and pump controllers, LED lighting and signage drivers, battery-powered sensor nodes, appliance user-interface boards, and compact current-measurement or energy-metering sub-systems. In each case the part replaces a discrete logic solution while keeping bill-of-material cost and board area low.
A key design consideration is that a 4 x 4 mm VQFN demands careful PCB layout: land patterns are dense, the exposed pad must be soldered and tied to ground for thermal performance, and the package has no lead room for hand rework. Use the pin description table in the Microchip ATtiny424/426/427/824/826/827 data sheet when assigning tracks.
This page consolidates manufacturer specifications, package and pin-out guidance, family drop-in alternatives and practical layout notes into one place, adding engineering context that a bare parametric distributor listing does not provide.
Drop-in alternatifler için ATTINY827-MF — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
ATTINY827-MFR
✅ Yerleştirme📋 Katalogda Olmayan Referans Alternatifi
ATTINY826-MF
✅ Yerleştirme ⚠️ Onaylanmamış ÖzelliklerFiyat için iletişime geçin
Veri Şablonunu Görüntüle →ATTINY826-MFR
✅ Yerleştirme ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
ATTINY824-MF
✅ Yerleştirme ⚠️ Onaylanmamış Özellikler📋 Katalogda Olmayan Referans Alternatifi
ATTINY827-MF Maksimum Değerlendirmeler & Elektriksel Özellikler
| Product Type | 8-bit Microcontroller (MCU) |
| Device Family | tinyAVR 2 |
| CPU Core | AVR with hardware multiplier |
| Core Width | 8-bit RISC |
| Azami Saat Hızı | 20 MHz |
| Flash Program Memory | 8 KB |
| SRAM | 1 KB |
| EEPROM | 128 bytes |
| Paket | 24-pin VQFN (4 x 4 mm) |
| Montaj Türü | Surface Mount |
| Peripheral Architecture | Core Independent Peripherals (CIPs) |
| Operating Temperature Grade | Industrial, +125 C maximum |
| Minimum Operating Voltage | 2.7 V at 8 MHz (distributor listing) |
| RoHS Durumu | unknown |
ATTINY827-MF 24-pin vqfn (4 x 4 mm) Pin Yapısı Kılavuzu
ATTINY827-MF (24-pin vqfn (4 x 4 mm) paket) için pin yapısı. Bu dijital IC, GPIO, iletişim arayüzleri (UART, SPI, I2C) ve güç pinleri içerir. Alternatif pin işlevleri ve yapılandırma seçenekleri için üretici veri kitapçığını referans alın. Tünel sistem tasarımı ve PCB yerleşimi için temel bir bileşendir.
Ayrıntılı pin çıkış verisi mevcut değil: ATTINY827-MF.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
ATTINY827-MF için uygundur 6 uygulamas: Compact Pump and Valve Control Nodes, LED Lighting and Signage Drivers, Battery-Powered Sensor and IoT Nodes, Energy Metering and Current Sensing Front Ends, Appliance User-Interface and Control Boards, Industrial Data Acquisition and Conditioning.
Compact Pump and Valve Control Nodes
The ATTINY827-MF fits appliance and industrial pump controllers because its 20 MHz AVR core with hardware multiplier executes closed-loop timing and duty calculations quickly, while 8 KB of Flash holds the state machine and 1 KB of SRAM handles working variables. Placed on a small board next to a MOSFET driver, the 24-pin VQFN (4 x 4 mm) footprint keeps the controller compact enough for a space-limited appliance. Core Independent Peripherals let timer outputs, comparators and the ADC work without constant CPU polling, so the CPU spends most of its time in a low-power state between pump cycles. Use the pin description table in the family data sheet to place PWM outputs and the ADC input on accessible pins, and confirm the exposed-pad thermal design when driving high-current loads through the board.
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LED Lighting and Signage Drivers
For LED lighting strips, signage and display backlight drivers, the ATTINY827-MF combines the timer and PWM resources of the tinyAVR 2 family with 1 KB of SRAM for frame and fading data. Its 8-bit AVR core at up to 20 MHz gives the resolution needed for smooth dimming curves, and the hardware multiplier speeds up the gamma-correction arithmetic that dominates LED fade computation. The 24-pin VQFN (4 x 4 mm) package places several PWM-capable pins, serial inputs and the supply on a very small area, which matters when the driver board sits behind a thin panel. Keep the layout away from the switching stages and follow the published land pattern so the exposed pad keeps the junction temperature within the +125 C grade limit.
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Battery-Powered Sensor and IoT Nodes
Battery-operated sensor nodes benefit from the ATTINY827-MF because the tinyAVR 2 architecture is built for low-power operation, and 128 bytes of EEPROM store calibration and node identity without a separate memory IC. The 8 KB of Flash is enough for a compact protocol stack plus sampling logic, while the 20 MHz core finishes a conversion cycle quickly so the MCU can return to sleep between readings. Core Independent Peripherals can trigger the ADC and timer from peripheral events, cutting wake-up processing time. The 4 x 4 mm VQFN land pattern suits coin-cell and enclosed housings where board area is the binding constraint, and the +125 C industrial grade supports operation inside sealed enclosures near heat sources.
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Energy Metering and Current Sensing Front Ends
In energy-metering sub-boards, the ATTINY827-MF handles current and voltage sampling, RMS calculation and calibration storage on a single device. Its hardware multiplier accelerates the multiply-accumulate work behind true-RMS and power-factor computation, and 1 KB of SRAM is sufficient for the sample buffer needed between conversions. The 128-byte EEPROM holds gain and offset constants, avoiding an external non-volatile memory. With Core Independent Peripherals available for timer capture and analog comparison, the design can trigger sampling precisely from the mains-derived zero crossing. The small 24-VQFN (4 x 4 mm) footprint lets the metering section sit close to the shunt and current transformer, reducing trace length on the sensitive analog path.
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Appliance User-Interface and Control Boards
Appliance control boards use the ATTINY827-MF to combine key scanning, display multiplexing and motor or relay sequencing in one microcontroller. The 20 MHz AVR core is fast enough to service a matrix keypad and refresh a segment or LED display while still managing state logic, and 8 KB of Flash holds the UI table plus the appliance state machine. Core Independent Peripherals move periodic display refresh and button debounce work out of the main loop, leaving the CPU free for the functional sequence. The 24-pin VQFN (4 x 4 mm) package is short enough to fit behind a membrane keypad panel, and the industrial +125 C rating suits environments where the board sits near a hot appliance chassis. Match the pin functions to the family data sheet before finalizing the layout.
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Industrial Data Acquisition and Conditioning
Small data-acquisition modules built around the ATTINY827-MF can run autonomous logging loops because the device combines ADC support, timers and serial communication in a 4 x 4 mm footprint. At up to 20 MHz the CPU can filter and scale sensor streams between acquisitions, and the hardware multiplier helps with the arithmetic involved in linearization and digital calibration. The 1 KB of SRAM supports short rolling buffers, while 128 bytes of EEPROM retains setup data across resets. Because the part comes from the Core Independent Peripheral-based tinyAVR 2 family, timing-critical capture can be linked through the event system instead of software polling, improving repeatability in the field. Use the exposed pad as a ground and thermal plane per the published land pattern to keep the die within its temperature rating.
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Önerilen Ürünler Özeti
Mühendislik referans verileri: ATTINY827-MF — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | ATTINY827-MFR | ATTINY826-MF | ATTINY826-MFR | ATTINY824-MF |
|---|---|---|---|---|---|
| Package | 24-VQFN (4 x 4 mm) | 24-VQFN (4 x 4 mm) - same | 24-VQFN (4 x 4 mm) - same | 24-VQFN (4 x 4 mm) - same | 24-VQFN (4 x 4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Program Memory | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| CPU Core | AVR with hardware multiplier, 8-bit | AVR with hardware multiplier, 8-bit - identical | AVR with hardware multiplier, 8-bit - identical | AVR with hardware multiplier, 8-bit - identical | AVR with hardware multiplier, 8-bit - identical |
| Peripheral Set | Core Independent Peripherals, full tinyAVR 2 24-pin set | Identical to ATTINY827 | Reduced peripheral set vs ATTINY827 | Reduced peripheral set vs ATTINY827 | Smallest peripheral set of the 8 KB 24-pin members |
| Packing / Order Code | ATTINY827-MF (tray ordering code) | Tape and reel | Tray | Tape and reel | Tray |
Ana Farklılayıcılar
- Largest peripheral complement among the 8 KB, 24-pin tinyAVR 2 members (karşılaştırma:ATTINY826-MF)
- Identical silicon with production-ready reel packing (karşılaştırma:ATTINY827-MFR)
- Industry-standard 20 MHz AVR core with hardware multiplier (karşılaştırma:ATTINY824-MF)
- Compact 4 x 4 mm VQFN land pattern for space-constrained boards (karşılaştırma:ATTINY88-MUR)
Tasarım Notları
The 24-pin VQFN (4 x 4 mm) land pattern leaves almost no room for error: build the footprint directly from the package drawing published in the Microchip ATtiny424/426/427/824/826/827 data sheet (DS40002311A), including the exposed ground pad and its thermal vias. Place the pad on a solid ground plane with short stitched vias so the die can dissipate heat, and keep high-current or fast-switching traces on a separate layer from the analog inputs to avoid coupling into the ADC front end.
Decoupling for this 20 MHz AVR core follows the family data sheet: place a 100 nF ceramic capacitor at each supply pin as close as possible to the pad, plus a bulk capacitor of about 1 uF or more on the rail. Estimated: at 20 MHz with a 2.7 V-class supply the core draws current in the low-millampere range, so rail droop during switching bursts is the main risk rather than average dissipation. Confirm the actual supply-voltage range and decoupling values in the electrical characteristics section of the manufacturer data sheet before freezing the BOM.
Route the exposed pad as a solid ground pour with multiple thermal vias rather than a fragmented copper spider; the ATtiny827 family parts are graded to +125 C and rely on that pad as their primary heat path. Keep the crystal or external clock traces short and away from switching nodes and the high-current LED or motor drivers on the same board. Because a 4 x 4 mm VQFN cannot be hand-reworked easily, plan the assembly sequence and add a programming or test header before the footprint is committed.
A frequent substitution error is choosing a 20-pin or SOIC-packaged family member for this 24-VQFN footprint, which forces a board respin. Another is assuming that ATTINY826-MF or ATTINY824-MF are functionally identical substitutes: they share the 20 MHz core, 8 KB Flash, 1 KB SRAM and 128-byte EEPROM, but their peripheral complements differ, so any firmware that depends on serial or advanced timer resources must be re-checked against the pin description table of the specific replacement data sheet.
Uyumluluk Bilgisi
The device is an industrial-grade (125 C) 8-bit MCU; no RoHS, REACH, AEC-Q100 or lead-free statements were confirmed for this ordering code, so each field is left as unknown rather than assumed. The ATTINY827 family is not an automotive-qualified ordering option here.
