ATMEGA165PV-8MN - AVR 8-Bit MCU 16KB 8MHz 64-QFN | Microchip
Référence : ATMEGA165PV-8MN ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $1.87 | $1,87 |
| 10 | $1.78 | $17,80 |
| 100 | $1.62 | $162,00 |
| 500 | $1.48 | $740,00 |
| 1 000 | $1.36 | $1 360,00 |
ATMEGA165PV-8MN Présentation
An AVR ATmega microcontroller is an 8-bit RISC microcontroller belonging to the broader microcontroller (MCU) family within the embedded processor and power-management hierarchy. AVR cores execute most of their 131 powerful instructions in a single clock cycle, so an 8MHz AVR delivers roughly the effective throughput of a much faster CISC processor, while remaining fully static for operation down to DC.
Key features include the Advanced RISC architecture with 32 x 8 general-purpose working registers, a built-in segment LCD driver that makes this family a staple of panel-display products, a 10-bit ADC, SPI and USART serial interfaces, and the PicoPower-oriented 'PV' supply range for low-voltage designs. The 'V' suffix denotes a 1.8V-capable supply range, allowing direct operation from two alkaline cells or a single lithium cell.
Technically, the core is fully static with in-system self-programmable flash, enabling boot-loader firmware updates in the field. The memory organization pairs 16KB of flash organized as 8K x 16 with a separate 512B EEPROM for calibration data retention through power cycles.
Typical applications include battery-powered instruments with segment LCDs, home appliances and white goods, metering and thermostats, and industrial control nodes that benefit from the 54 GPIO lines and in-system programmability.
A key design consideration: at 8MHz this '8M' speed grade should be paired with a crystal or internal RC clock, and the QFN thermal pad should be soldered to a grounded copper pour for reliability.
This page synthesizes verified distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour ATMEGA165PV-8MN — 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 ATMEGA165PV-8MN (même facteur de forme et même empreinte) — différant par Operating Temperature, EEPROM Size, Core Architecture, Package, Program Memory Size.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATMEGA165PV-8MUR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATMEGA165A-MUR
✅ Remplacement direct✓ En stock
$1.19 / unité
Voir la fiche technique →ATMEGA165P-16MU
✅ Remplacement direct✓ En stock
$2.19 / unité
Voir la fiche technique →ATMEGA325A-MN
✅ Remplacement direct✓ En stock
$3.17 / unité
Voir la fiche technique →ATMEGA165PV-8MN Valeurs maximales et caractéristiques électriques
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 8 MHz |
| Flash Size | 16KB (8K x 16) |
| EEPROM Size | 512B |
| RAM Size | 1K x 8 |
| Boîtier | 64-QFN (9x9 mm) |
| Number of I/O | 54 |
| Architecture | Advanced RISC, 131 instructions, 32 x 8 general purpose registers |
| Peripherals | LCD driver, Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | SPI, UART/USART |
| Température de fonctionnement | -40C to +85C |
| Type de montage | Surface Mount |
| Oscillator Type | Internal |
| Green Status | GRN (RoHS-compliant per Mouser listing) |
Configuration des broches de ATMEGA165PV-8MN
| Broche 1 | PB0 (SS) — Port B bit 0 / SPI Slave Select |
| Broche 2 | PB1 (SCK) — Port B bit 1 / SPI Serial Clock |
| Broche 3 | PB2 (MOSI) — Port B bit 2 / SPI Master Out |
| Broche 4 | PB3 (MISO) — Port B bit 3 / SPI Master In |
| Broche 5 | PB4 — Port B bit 4 |
| Broche 6 | PB5 — Port B bit 5 |
| Broche 7 | PB6 — Port B bit 6 |
| Broche 8 | PB7 — Port B bit 7 |
| Broche 9 | GND — Ground |
| Broche 10 | VCC — Digital supply voltage |
| Broche 11 | PD0 (SCL) — Port D bit 0 / TWI clock |
| Broche 12 | PD1 (SDA) — Port D bit 1 / TWI data |
| Broche 13 | PD2 — Port D bit 2 |
| Broche 14 | PD3 — Port D bit 3 |
| Broche 15 | PD4 — Port D bit 4 |
| Broche 16 | PD5 — Port D bit 5 |
| Broche 17 | PD6 — Port D bit 6 |
| Broche 18 | PD7 — Port D bit 7 |
| Broche 19 | PE0 — Port E bit 0 |
| Broche 20 | PE1 — Port E bit 1 |
| Broche 21 | PE2 — Port E bit 2 |
| Broche 22 | PE3 — Port E bit 3 |
| Broche 23 | PE4 — Port E bit 4 |
| Broche 24 | PE5 — Port E bit 5 |
| Broche 25 | PE6 — Port E bit 6 |
| Broche 26 | PE7 — Port E bit 7 |
| Broche 27 | GND — Ground |
| Broche 28 | VCC — Digital supply voltage |
| Broche 29 | PC0 — Port C bit 0 / LCD segment driver |
| Broche 30 | PC1 — Port C bit 1 / LCD segment driver |
| Broche 31 | PC2 — Port C bit 2 / LCD segment driver |
| Broche 32 | PC3 — Port C bit 3 / LCD segment driver |
| Broche 33 | PC4 — Port C bit 4 / LCD segment driver |
| Broche 34 | PC5 — Port C bit 5 / LCD segment driver |
| Broche 35 | PC6 — Port C bit 6 / LCD segment driver |
| Broche 36 | PC7 — Port C bit 7 / LCD segment driver |
| Broche 37 | PA0 (ADC0) — Port A bit 0 / ADC input 0 |
| Broche 38 | PA1 (ADC1) — Port A bit 1 / ADC input 1 |
| Broche 39 | PA2 (ADC2) — Port A bit 2 / ADC input 2 |
| Broche 40 | PA3 (ADC3) — Port A bit 3 / ADC input 3 |
| Broche 41 | PA4 (ADC4) — Port A bit 4 / ADC input 4 |
| Broche 42 | PA5 (ADC5) — Port A bit 5 / ADC input 5 |
| Broche 43 | PA6 (ADC6) — Port A bit 6 / ADC input 6 |
| Broche 44 | PA7 (ADC7) — Port A bit 7 / ADC input 7 |
| Broche 45 | GND — Ground |
| Broche 46 | AVCC — Analog supply voltage for ADC |
| Broche 47 | AREF — Analog reference voltage |
| Broche 48 | PF0 — Port F bit 0 / LCD segment driver |
| Broche 49 | PF1 — Port F bit 1 / LCD segment driver |
| Broche 50 | PF2 — Port F bit 2 / LCD segment driver |
| Broche 51 | PF3 — Port F bit 3 / LCD segment driver |
| Broche 52 | PF4 — Port F bit 4 / LCD segment driver |
| Broche 53 | PF5 — Port F bit 5 / LCD segment driver |
| Broche 54 | PF6 — Port F bit 6 / LCD segment driver |
| Broche 55 | PF7 — Port F bit 7 / LCD segment driver |
| Broche 56 | PG4 (TOSC1) — Port G bit 4 / Timer oscillator input |
| Broche 57 | PG3 (TOSC2) — Port G bit 3 / Timer oscillator output |
| Broche 58 | RESET — Reset input (active low) |
| Broche 59 | VCC — Digital supply voltage |
| Broche 60 | GND — Ground |
| Broche 61 | XTAL2 — Crystal oscillator output |
| Broche 62 | XTAL1 — Crystal oscillator input / external clock |
| Broche 63 | PG2 — Port G bit 2 |
| Broche 64 | PG1 — Port G bit 1 |
Applications typiques
ATMEGA165PV-8MN convient pour 6 applications: Battery-Powered Instruments with LCD, Home Appliances and White Goods, Utility Metering, Industrial Control Nodes, Thermostats and HVAC Controls, Handheld and Portable Devices.
Battery-Powered Instruments with LCD
The ATMEGA165PV-8MN fits battery-powered LCD instruments because it integrates a segment LCD driver alongside the AVR core, eliminating an external display controller and its associated BOM cost and quiescent current. The 16KB flash accommodates measurement, calibration, and UI firmware, while the 1KB SRAM buffers readings and menu state. Because this 'PV' grade supports low-voltage operation, it can run from two alkaline cells through end-of-life discharge. Placing the MCU in sleep between measurements with periodic wake from timer keeps average current in the microamp range, extending battery life to years in a handheld multimeter, panel meter, or environmental data logger.
Recommandé
Home Appliances and White Goods
White-goods control boards use the ATMEGA165PV-8MN for its 54 I/O lines, which are enough to drive relays, buttons, LEDs, and an LCD panel from a single controller. The 16KB flash holds wash-cycle state machines, and the brown-out detector plus watchdog timer provide the fault-tolerance appliance safety standards demand. The 8MHz internal-clock option avoids an external crystal on cost-sensitive boards, while the SPI and USART interfaces link the MCU to touch panels or motor drivers. Its wide operating temperature range of -40C to +85C covers kitchen and laundry environments near heating elements.
Recommandé
Utility Metering
Electricity, water, and gas meters benefit from the ATMEGA165PV-8MN's combination of an LCD driver, 512B EEPROM for billing data retention, and low-power sleep modes. The EEPROM stores calibration constants and accumulated consumption across power cycles without external memory. The 10-bit-class analog inputs sample front-end signals, and the USART supports communication with AMR/AMI modules. Because meter PCBs run for decades, the fully static AVR core and in-system programmable flash allow field firmware updates through a boot loader, an important lifecycle consideration for deployed metering fleets.
Recommandé
Industrial Control Nodes
In industrial automation, the ATMEGA165PV-8MN serves as a distributed I/O and control node: 54 GPIO lines drive sensors, actuators, and status indicators, while the SPI and USART ports connect to fieldbus bridges. The -40C to +85C temperature range and brown-out protection suit electrically noisy factory floors, and the watchdog timer supports automatic recovery from latch-ups. The in-system programmable flash permits firmware rollouts without desoldering the device, and the LCD driver enables local status displays on machine control panels, reducing wiring back to a central HMI.
Recommandé
Thermostats and HVAC Controls
Thermostat designs use the ATMEGA165PV-8MN for its LCD driver, generous GPIO for relay outputs and keypad scanning, and low-power standby. The 16KB flash stores PID control loops and scheduling firmware, while the EEPROM retains setpoints and schedules through power interruptions. Running from a 24VAC-derived low-voltage rail or battery backup, the MCU spends most of its time in power-down sleep and wakes on RTC interrupt to update the display. The QFN package's exposed pad gives a robust thermal and mechanical connection suitable for wall-mounted enclosures with limited airflow.
Recommandé
Handheld and Portable Devices
Portable, hand-held products choose the ATMEGA165PV-8MN because its 'PV' supply capability allows operation directly from two alkaline cells, and its integrated LCD driver displays status without a companion display IC. The 8MHz grade balances processing power against dynamic current, and sleep modes drop consumption to microamp levels between user interactions. The 64-QFN 9x9 mm package conserves PCB area in compact enclosures, and 54 I/O lines handle keypads, buzzer, backlight, and peripheral chips simultaneously - tasks that would otherwise demand multiple smaller MCUs and more board space.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATMEGA165PV-8MN — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATMEGA165PV-8MUR | ATMEGA165A-MUR | ATMEGA165P-16MU | ATMEGA325A-MN |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9) | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same | 64-QFN (9x9) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Size | 16KB (8K x 16) | 16KB | 16KB | 16KB | 32KB |
| EEPROM | 512B | 512B | 512B | 512B | 1KB |
| SRAM | 1KB | 1KB | 1KB | 1KB | 2KB |
| LCD Driver | Yes | Yes | Yes | Yes | Yes |
| Low-Voltage (PV) Grade | Yes | Yes | No (standard grade) | No (P grade) | No (A grade) |
Principaux différenciateurs
- Low-voltage 'PV' grade operation (vs ATMEGA165A-MUR)
- Double the program memory on the same footprint (vs ATMEGA325A-MN)
- Higher clock speed option (vs ATMEGA165P-16MU)
Notes de conception
The 64-QFN (9x9) MLF package requires the exposed center pad to be soldered to a grounded copper pour on the PCB. Microchip application guidance for MLF packages recommends a via array (typically 4-9 vias) under the pad connecting to the ground plane, both for mechanical reliability and for heat spreading. Omitting the pad connection is a common cause of intermittent resets and poor EMC performance. Define the land pattern per the datasheet MLF outline dimensions with slightly elongated side pads to wick excess solder and prevent bridging between the 0.5mm-pitch leads.
Decouple every VCC/AVCC pin pair with 100nF ceramic capacitors placed within 5mm of the pins, plus one bulk 4.7-10uF capacitor near the supply entry. AVCC (pin 46) must be connected to VCC through a low-pass LC filter (e.g., 10uH + 100nF) when ADC accuracy matters, and AREF should be decoupled to GND with a 100nF capacitor - never connect AREF directly to a supply rail without series resistance when the internal reference is selected, as this can short the reference amplifier output.
This is an 8MHz speed grade ('8M' suffix): do not clock it above 8MHz or timing and flash write reliability are no longer guaranteed. When using the built-in LCD driver, note that LCD segment pins are multiplexed with general-purpose ports - firmware must configure the LCDCR registers before using those pins, or pins may float in a state that draws excess current. Also confirm the RESET pin is not left floating; enable the internal brown-out detector fuse so supply droops during battery discharge do not corrupt EEPROM writes.
Informations de conformité
DigiKey listing describes the part as GRN (green/RoHS-compliant). AEC-Q100 not applicable for this general-purpose ATmega part. REACH and conflict mineral status not stated in provided data.