ATMEGA88PA-15MZ - 8KB AVR MCU 16MHz 32-QFN | Microchip
MPN: ATMEGA88PA-15MZ ✓ AktifATMEGA88PA-15MZ Ringkasan
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, ADCs, and serial interfaces. Within the power management of embedded systems hierarchy, the MCU sits at the top of the control stack, executing firmware that coordinates sensors, actuators, and communication links. The AVR family, originally developed by Atmel and now part of Microchip Technology, is widely used in industrial control, consumer appliances, and automotive body electronics.
Key features include the Advanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle; 8KB of self-programmable Flash with read-while-write support; an internal RC oscillator that removes the need for an external crystal in many designs; and picoPower technology that cuts power consumption in sleep modes to microamp levels. Peripherals include an 8-channel 10-bit ADC, two 8-bit and one 16-bit timer with PWM, USI-compatible SPI and I2C, and a full-duplex USART.
Technically, the AVR core uses a Harvard architecture with 32 general-purpose working registers directly connected to the ALU, achieving up to 16 MIPS throughput at 16MHz. The ATMEGA88PA picoPower revision reduces dynamic current consumption versus the base ATmega88 while preserving full code compatibility, so firmware written for ATmega88 or ATmega168 runs without modification within the respective memory limits.
Typical applications include automotive body modules (door controllers, lighting, sensor nodes), industrial sensor and actuator control, and battery-powered consumer devices where the picoPower sleep modes extend battery life. The 32-QFN package suits compact, space-constrained boards.
When designing with this part, provide a solid ground plane under the exposed pad and decouple both VCC and AVCC pins; the internal 8MHz RC oscillator tolerates most general-purpose timing, but use an external crystal for UART at 115200 baud or precise timing.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Pilihan pengganti yang segera untuk ATMEGA88PA-15MZ — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera ATMEGA88PA-15MZ (sama faktor bentuk dan kaki) — berbeza dalam Package, Core Processor, EEPROM, Operating Temperature, SRAM.
ATMEGA88PA-15AZ
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
ATMEGA168PA-15MZ
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATMEGA48PA-15MZ
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATMEGA88PA-MMHR
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATMEGA168PA-MMHR
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif rujukan (tidak dalam katalog)
ATMEGA88-15MZ
✅ Masuk Drop-InHubungi untuk harga
Lihat Datasheet →ATMEGA88PA-15MZ Penilaian maksimum & Ciri-ciri Elektrik
| Core Processor | AVR 8-bit RISC |
| Core Size | 8-bit |
| Speed | 16 MHz |
| Program Memory Size | 8 KB (4K x 16) Flash |
| RAM Size | 1K x 8 SRAM |
| EEPROM Size | 512 x 8 |
| Number of I/O | 23 |
| Tegangan Pemberi Arus | 1.8 V to 5.5 V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Suhu Operasi | -40C to +125C (TA) |
| Qualification Grade | Automotive |
| Kemasan / Case | 32-QFN (5x5 mm) Exposed Pad (MLF) |
| Jenis Pemasangan | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Series | AVR ATmega, picoPower |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I2C, SPI, UART/USART |
Konfigurasi Pin ATMEGA88PA-15MZ
| Pin 1 | PD3 — Port D, bit 3 (GPIO / INT1) |
| Pin 2 | PD4 — Port D, bit 4 (GPIO / XCK/T0) |
| Pin 3 | GND — Ground |
| Pin 4 | VCC — Digital supply voltage |
| Pin 5 | GND — Ground |
| Pin 6 | VCC — Digital supply voltage |
| Pin 7 | PB6 — Port B, bit 6 (XTAL1/TOSC1) |
| Pin 8 | PB7 — Port B, bit 7 (XTAL2/TOSC2) |
| Pin 9 | PD5 — Port D, bit 5 (T1 / OC0B) |
| Pin 10 | PD6 — Port D, bit 6 (AIN0 / OC0A) |
| Pin 11 | PD7 — Port D, bit 7 (AIN1) |
| Pin 12 | PB0 — Port B, bit 0 (ICP1 / CLKO) |
| Pin 13 | PB1 — Port B, bit 1 (OC1A) |
| Pin 14 | PB2 — Port B, bit 2 (SS / OC1B) |
| Pin 15 | PB3 — Port B, bit 3 (MOSI / OC2A) |
| Pin 16 | PB4 — Port B, bit 4 (MISO) |
| Pin 17 | PB5 — Port B, bit 5 (SCK) |
| Pin 18 | AVCC — ADC supply voltage |
| Pin 19 | ADC6 — ADC input channel 6 |
| Pin 20 | AREF — ADC analog reference |
| Pin 21 | GND — Ground |
| Pin 22 | ADC7 — ADC input channel 7 |
| Pin 23 | PC0 — Port C, bit 0 (ADC0 / SCL) |
| Pin 24 | PC1 — Port C, bit 1 (ADC1 / SDA) |
| Pin 25 | PC2 — Port C, bit 2 (ADC2 / TCK) |
| Pin 26 | PC3 — Port C, bit 3 (ADC3 / TMS) |
| Pin 27 | PC4 — Port C, bit 4 (ADC4 / TDO) |
| Pin 28 | PC5 — Port C, bit 5 (ADC5 / TDI) |
| Pin 29 | PC6 — Port C, bit 6 (RESET, active low) |
| Pin 30 | PD0 — Port D, bit 0 (RXD) |
| Pin 31 | PD1 — Port D, bit 1 (TXD) |
| Pin 32 | PD2 — Port D, bit 2 (INT0) |
Aplikasi Biasa
ATMEGA88PA-15MZ patut untuk 6 aplikasis: Automotive Body Electronics, Industrial Sensor Nodes, Battery-Powered Consumer Devices, Motor Control and PWM Actuation, Home Automation and IoT Sensor Endpoints, Legacy ATmega88/ATmega8 Design Upgrades.
Automotive Body Electronics
The ATMEGA88PA-15MZ fits automotive body modules such as door controllers, seat-position sensors, and interior lighting because it combines an automotive qualification grade with a -40C to +125C operating range and a 1.8V to 5.5V supply that tolerates load-dump-degraded 5V rails. In a typical lighting module, the 16MHz AVR core runs LIN-style polling firmware over USART while three timers generate hardware PWM with 8-bit resolution for lamp dimming, leaving the CPU free for diagnostics. The 8-channel 10-bit ADC reads switch arrays and NTC temperature sensors directly without external front ends. Use the brown-out detector and watchdog to guarantee safe state recovery during crank transients.
Disebarkan
Industrial Sensor Nodes
In industrial sensor nodes, the ATMEGA88PA-15MZ pairs its 8-channel 10-bit ADC with an internal 2.56V reference to digitize 4-20mA-derived voltage loops or NTC temperature inputs with about 2.5mV effective resolution. The 16MHz core executes linearization and averaging firmware inside the 8KB Flash, while SPI or I2C streams filtered data to a host controller or RS-485 transceiver through the USART. picoPower sleep modes cut idle current to microamp levels for loop-powered or battery-backed installations. The exposed-pad 32-QFN package conducts sensor-interface heat into the PCB, improving ADC temperature stability in sealed enclosures near motors and drives.
Disebarkan
Battery-Powered Consumer Devices
For battery-powered consumer products such as remote controls, toys, and portable meters, the picoPower ATMEGA88PA-15MZ minimizes average current by spending most of the duty cycle in power-down sleep, waking on pin-change interrupts or watchdog timeout. The internal 8MHz RC oscillator eliminates the crystal and its standing current, cutting BOM cost while preserving sufficient timing accuracy for key scanning and LED multiplexing at 3V from two AA cells. The 23 GPIO lines drive LED matrices and read keypads directly, and the 1.8V supply floor allows operation deep into the battery discharge curve, extending usable runtime versus 2.7V-floor competitors.
Disebarkan
Motor Control and PWM Actuation
The ATMEGA88PA-15MZ drives small DC and stepper motors in printers, locks, and valve actuators using its two 8-bit timers and one 16-bit timer, each with hardware PWM outputs and complementary dead-time-capable modes. At 16MHz, an 8-bit PWM reaches 62.5kHz carrier frequency, inaudible and well above typical motor time constants, while the 16-bit timer generates precise 1us-class step pulses for steppers. The 10-bit ADC reads back current via a sense resistor for stall detection, and the watchdog enforces safe shutdown on firmware faults. Solid grounding under the exposed pad keeps switching ground bounce out of the analog domain.
Disebarkan
Home Automation and IoT Sensor Endpoints
In smart-home endpoint devices such as PIR sensors, door contacts, and thermostat nodes, the ATMEGA88PA-15MZ handles wake-on-interrupt sensing, debounce logic, and sub-GHz or 2.4GHz radio module management over SPI. The 8KB Flash accommodates a lightweight protocol stack plus OTA-style command handling, and 512B EEPROM stores calibration and network credentials across power cycles. The internal oscillator and picoPower sleep modes support coin-cell operation measured in months to years, and the -40C to +125C range permits mounting in unconditioned garages and outdoor enclosures. The compact 5x5mm QFN suits slim wall-mount form factors.
Disebarkan
Legacy ATmega88/ATmega8 Design Upgrades
The ATMEGA88PA-15MZ is a direct migration path for legacy ATmega88-15MZ and pin-compatible ATmega8 designs: Microchip application note AVR094 documents the ATmega8-to-ATmega88 migration, and the PA picoPower revision preserves full register-level compatibility while reducing dynamic current. Because the 32-QFN footprint and pinout are unchanged, existing PCBs accept the part without layout edits, and most firmware recompiles unchanged; only calibration byte handling and some fuse defaults differ. This lets manufacturers extend the life of mature boards, gain RoHS-compliant automotive-graded silicon, and consolidate procurement on one modern, actively supported SKU.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk ATMEGA88PA-15MZ — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | ATMEGA88PA-15AZ | ATMEGA168PA-15MZ | ATMEGA48PA-15MZ | ATMEGA88PA-MMHR |
|---|---|---|---|---|---|
| Package | 32-QFN (5x5 mm, MLF) Exposed Pad | 32-QFN (5x5 mm, MLF) - same | 32-QFN (5x5 mm, MLF) - same | 32-QFN (5x5 mm, MLF) - same | 32-QFN (5x5 mm, MLF) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8 KB (4K x 16) | 8 KB | 16 KB | 4 KB | 8 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 512 B | 1 KB |
| Maximum Clock Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +125C (automotive) |
| ADC | 8-channel 10-bit | 8-channel 10-bit | 8-channel 10-bit | 8-channel 10-bit | 8-channel 10-bit |
Penyeberangsung Jelas
- Extended -40C to +125C temperature rating (vsATMEGA88PA-15AZ)
- 8KB Flash provides 2x code headroom over the small sibling (vsATMEGA48PA-15MZ)
- picoPower die cuts active current versus base ATmega88 (vsATMEGA88-15MZ)
Catatan Desain
The 32-QFN MLF package routes GND and VCC through pads 3/5/21 and 4/6 respectively. Solder the exposed pad to a solid ground plane with an array of at least 9 vias; this is the primary thermal and ground return path. Place 100nF ceramic decoupling capacitors within 2mm of each VCC pad and a 100nF plus 10uF pair at AVCC, connected to VCC through an LC or ferrite filter when ADC noise matters. AREF should be decoupled with 100nF to ground and never driven above AVCC.
The 1.8V to 5.5V supply range allows direct 3.3V or 5V operation, but the safe maximum clock derates with voltage per the datasheet frequency-vs-voltage curve - about 10MHz at 3.3V and the full 16MHz only at 4.5V to 5.5V. Running 16MHz at 3.3V is out of specification and a common cause of field failures. Estimated: at 5V and 16MHz with typical activity, dynamic current is in the few-mA range per picoPower family data, so a 100mA linear regulator provides ample margin for GPIO loads of 20mA per pin within the 200mA total device limit stated in the datasheet.
The internal 8MHz RC oscillator carries about 10% factory tolerance and is unsuitable for UART speeds above roughly 9600 baud without calibration; for reliable 115200 baud USART or precise 16-bit timer work, fit an external crystal on PB6/PB7 or use the USART baud-error table in the datasheet to pick a friendly clock. Also note PC6 doubles as RESET and is not a general I/O by default - disabling RESET via fuse removes ISP programming access, so leave it enabled unless you have a debugWIRE strategy.
Maklumat Kesediaan
Listed as automotive qualification grade with -40C to +125C rating in distributor data (ansinor, Mouser). Formal REACH and conflict-minerals declarations should be obtained from official Microchip compliance documents.
