ATMEGA48PA-CCUR - 4KB Flash AVR MCU 20MHz 32-UFBGA | Microchip
Référence : ATMEGA48PA-CCUR ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $1.54 | $1,54 |
| 10 | $1.49 | $14,90 |
| 100 | $1.42 | $142,00 |
| 500 | $1.36 | $680,00 |
| 1 000 | $1.3 | $1 300,00 |
ATMEGA48PA-CCUR Présentation
A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and programmable peripherals on one die. The AVR ATmega family sits within the broader taxonomy of 8-bit MCUs, which are widely used where low cost, deterministic execution, and low power matter more than raw processing throughput. The ATMEGA48PA is the picoPower variant of the ATmega48, engineered for battery-operated and energy-conscious designs.
Key features include 131 RISC instructions with mostly single-cycle execution, up to 20 MIPS throughput at 20MHz, 4KB (2K x 16) self-programmable FLASH, 256B EEPROM and 512B SRAM (per family datasheet), and supply operation across 1.8V to 5.5V per Microchip documentation, supporting 2.5V, 3.3V, and 5V systems.
The picoPower technology provides multiple sleep modes with sub-uA sleep currents, making the PA grade attractive for coin-cell products. Two 8-bit and one 16-bit timers, a 10-bit ADC, USART, SPI, and TWI (I2C) peripherals cover most embedded interfacing needs. The compact 4x4 mm UFBGA suits space-constrained, two-layer or four-layer portable boards.
Typical applications include battery-powered sensor nodes, consumer handheld devices, industrial sensing front ends, and small HMI controllers.
Design consideration: the fine 0.45 mm ball pitch demands precise PCB land patterns and X-ray or AOI inspection during reflow; plan test points early since BGA balls are not probeable.
This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, drop-in alternatives within the same 32-UFBGA footprint, and practical design notes in one place.
Alternatives de remplacement direct pour ATMEGA48PA-CCUR — 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 ATMEGA48PA-CCUR (même facteur de forme et même empreinte) — différant par Package, Flash Memory, Mounting Type, EEPROM, SRAM.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATMEGA48PA-CCU
✅ Remplacement direct✓ En stock
$0.85 / unité
Voir la fiche technique →ATMEGA48A-CCUR
✅ Remplacement direct✓ En stock
$1.02 / unité
Voir la fiche technique →ATMEGA48A-CCU
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$1.12 / unité
Voir la fiche technique →ATMEGA48P-20MMU
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$0.1698 / unité
Voir la fiche technique →ATMEGA48PA-CCUR Valeurs maximales et caractéristiques électriques
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20 MHz |
| Flash Memory Size | 4 KB (2K x 16) |
| Supply Voltage Range | 1.8 V to 5.5 V |
| Operating Voltage Classes | 2.5 V / 3.3 V / 5 V |
| Number of I/O | 23 |
| Boîtier | 32-UFBGA (4x4 mm, 0.45 mm pitch) |
| Package Height | 1.0 mm |
| Type de montage | Surface Mount |
| Operating Temperature Min | -40 C |
| Operating Temperature Max | 85 C |
| Packaging | Tape & Reel (T/R) |
| Program Memory Type | FLASH (In-System Programmable) |
| Instructions | 131 instructions, most single-cycle |
| Number of ADCs | 1 |
Guide de configuration des broches du ATMEGA48PA-CCUR 1.0 mm
Configuration des broches du ATMEGA48PA-CCUR (boîtier 1.0 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATMEGA48PA-CCUR.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATMEGA48PA-CCUR convient pour 6 applications: Battery-Powered Sensor Nodes, Wearable and Portable Devices, Industrial Sensing Front Ends, Consumer Small Appliances, IoT Edge Nodes and Smart Home Devices, Embedded HMI and Display Controllers.
Battery-Powered Sensor Nodes
The ATMEGA48PA-CCUR fits battery-powered sensor nodes because its picoPower technology offers multiple sleep modes with sub-microamp standby current, extending coin-cell or AA battery life from months to years. The 20MHz AVR core wakes quickly to sample a sensor via the integrated 10-bit ADC or a digital interface, processes the reading, and returns to sleep. Its 1.8V to 5.5V supply range tolerates declining battery voltage without a regulator, and the 4x4 mm 32-UFBGA keeps the node compact. Trade-off: 4KB Flash limits protocol stacks, so keep firmware lean.
Recommandé
Wearable and Portable Devices
Wearable and handheld products benefit from the ATMEGA48PA-CCUR's combination of a 4x4 mm, 1.0 mm-high UFBGA package, picoPower sleep modes, and 1.8V low-voltage operation that matches single-cell lithium supplies. The 23 I/O lines drive buttons, LEDs, vibration motors, and I2C sensor buses directly without external glue logic. Because the ball pitch is 0.45 mm, a four-layer PCB with via-in-pad is recommended for routability and reliability. Typical companion parts include MEMS accelerometers and small OLED controllers on the TWI bus.
Recommandé
Industrial Sensing Front Ends
In industrial sensing front ends, the ATMEGA48PA-CCUR provides deterministic 8-bit control with a 10-bit ADC for thermistors, potentiometers, and ratiometric sensors, while USART, SPI, and TWI interfaces link to displays and field buses. Operation from -40C to +85C covers unconditioned factory environments, and the 5V supply class integrates directly with legacy 24V-panel I/O conditioned by optocouplers. Flash self-programming allows field firmware updates. Choose the PA picoPower grade when the node sleeps between polling events to cut average consumption significantly.
Recommandé
Consumer Small Appliances
Small consumer appliances - coffee makers, fans, chargers, and toy controllers - use the ATMEGA48PA-CCUR for its low cost (about $1.50 per unit as of 2026-09-18), 20MHz single-cycle RISC performance, and green RoHS-oriented packaging. The 4KB Flash is typically sufficient for state machines, simple menus, and PWM motor or LED control using the two 8-bit and one 16-bit timers. The 32-UFBGA reduces PCB area for compact housings, though assembly cost at 0.45 mm pitch must be weighed against cheaper TQFP variants in high-volume consumer production.
Recommandé
IoT Edge Nodes and Smart Home Devices
Smart home devices such as sensor pucks, switches, and remote controls use the ATMEGA48PA-CCUR as the local MCU paired with a wireless module over UART or SPI. PicoPower sleep modes let the node sit idle for long periods while a low-power radio wakes it, and 1.8V compatibility allows direct sharing of the radio module's supply rail. With 23 I/O, the MCU handles capacitive or mechanical buttons and status LEDs simultaneously. Firmware must stay under 4KB Flash, so simple binary protocol bridges rather than full TCP/IP stacks are realistic here.
Recommandé
Embedded HMI and Display Controllers
The ATMEGA48PA-CCUR works as a compact HMI controller driving segment LCDs via bit-banged SPI, LED matrices, or small OLED modules through TWI/I2C. The 20MHz core refreshes multiplexed displays without visible flicker while timers handle backlight PWM dimming. Button scanning across up to 23 I/O lines supports keypad arrays with interrupt-on-change wake from deep sleep, saving power in standby. For 5V systems the MCU connects directly to classic HD44780-style text LCDs. Designs needing touch or graphical acceleration should step up to the ATmega328PB or ATmega32 family instead.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATMEGA48PA-CCUR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATMEGA48PA-CCU | ATMEGA48A-CCUR | ATMEGA48A-CCU |
|---|---|---|---|---|
| Package | 32-UFBGA (4x4 mm, 0.45 mm pitch) | 32-UFBGA (4x4 mm) - same | 32-UFBGA (4x4 mm) - same | 32-UFBGA (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 4 KB (2K x 16) | 4 KB (2K x 16) | 4 KB (2K x 16) | 4 KB (2K x 16) |
| Max Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.5 V / 3.3 V / 5 V | 2.5 V / 3.3 V / 5 V |
| PicoPower Technology | Yes (PA grade) | Yes (PA grade) | No (standard A grade) | No (standard A grade) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Packaging Format | Tape & Reel (T/R) | Tray | Tape & Reel (T/R) | Tray |
Principaux différenciateurs
- picoPower technology for battery applications (vs ATMEGA48A-CCUR)
- Wide 1.8V to 5.5V supply range (vs ATMEGA48A-CCUR)
- Low unit cost for an MCU in BGA (vs ATMEGA48PA-CCU)
Notes de conception
The 32-UFBGA with 0.45 mm ball pitch requires NSMD land pads of approximately 0.28-0.30 mm diameter with solder-mask-defined clearance, per standard BGA land-pattern practice. Via-in-pad with microvia fill is recommended on a 4-layer board to escape the inner ball rows. Reflow profiles must follow Microchip's MSL classification for the package, and X-ray or AOI inspection is essential since solder joints are hidden. Estimated: routing all 23 I/O plus power on two layers is impractical; budget at least four layers for signal escape.
Decouple VCC/AVCC with 100 nF ceramic capacitors placed as close to each supply ball as possible, plus a bulk 4.7-10 uF capacitor. With 1.8V to 5.5V operation, ensure brown-out detection is enabled and its threshold is set below the minimum battery voltage for your design. For picoPower savings, disable unused peripherals in the Power Reduction Register and select the deepest sleep mode compatible with your wake latency requirement. Estimated: a 3V coin-cell design sleeping at sub-uA current achieves multi-year shelf-life-class operation.
If migrating to ATmega48PB later, note Microchip application note 00002605A cautions: Pin 3 must not be actively driven when tied to GND and ACO must not be enabled, and Pin 6 must not be actively driven when tied to VCC. Also, ISP programming uses two I/O pins plus reset - reserve pad access or a test footprint for the ISP header, since BGA balls cannot be probed after assembly. Do not exceed 20MHz at the low-voltage end of the supply range without checking the frequency-vs-voltage curve in the datasheet.
Informations de conformité
DigChip lists lifecycle stage ACTIVE and the package as green plastic, suggesting RoHS orientation, but specific RoHS/REACH/lead-free declarations for this ordering code were not present in the provided data.
