ATMEGA48A-CCUR - 8-Bit AVR MCU 20MHz 4KB Flash 32-UFBGA | Microchip
부품 번호: ATMEGA48A-CCUR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.46 | $14.60 |
| 100 | $1.3 | $130.00 |
| 500 | $1.15 | $575.00 |
| 1,000 | $1.02 | $1,020.00 |
ATMEGA48A-CCUR 개요
A microcontroller (MCU) is a single-chip computer integrating a processor core, program memory, data memory, and peripherals such as timers, UART, SPI, I2C, and ADC onto one die. Microcontrollers sit at the device level of the embedded-systems hierarchy: microcontroller -> 8-bit MCU -> embedded processor -> semiconductor IC. They execute control, sensing, and communication tasks in virtually every electronic product.
The ATMEGA48A executes 131 powerful instructions, most in a single clock cycle, through its Advanced RISC architecture with 32 general-purpose working registers. Key features include 4KB self-programmable Flash, a 6-channel 10-bit ADC, three flexible timer/counters with compare modes, and an internal calibrated RC oscillator, all in an industrial temperature rating (I suffix).
The A-version die is manufactured on Microchip's optimized AVR process, delivering lower power consumption and improved electrical characteristics versus the original ATmega48 while remaining functionally identical (per Microchip application note AVR532, the ATmega48A is a drop-in replacement for the ATmega48). The 32-UFBGA package offers the smallest possible footprint for space-constrained designs.
Typical applications include compact battery-powered sensor nodes, consumer appliances, industrial control boards, and handheld instruments where board area is at a premium and the ball-grid package enables high-density assembly.
Design consideration: use the BGA package only where reflow assembly and X-ray inspection capability exist; the device cannot be hand-soldered or reworked like a TQFP.
This page synthesizes distributor pricing, verified drop-in alternatives, design guidance, and FAQ content not found in the manufacturer datasheet.
드롭인 대체품: ATMEGA48A-CCUR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATMEGA48A-CCUR (동일 폼 팩터 및 풋프린트) — 차이점: Package, Supply Voltage Range, EEPROM, Flash Memory, SRAM.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATMEGA48A-CCU
✅ 드롭인✓ 재고 있음
$1.12 / 개
데이터시트 보기 →ATMEGA48PA-CCUR
✅ 드롭인✓ 재고 있음
$1.3 / 개
데이터시트 보기 →ATMEGA88A-CCUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
가격 문의
데이터시트 보기 →ATMEGA168A-CCUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1.92 / 개
데이터시트 보기 →ATMEGA88PA-CCUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1.08 / 개
데이터시트 보기 →ATMEGA48A-CCUR 최대 정격 & 전기적 특성
| Core Processor | AVR 8-bit RISC |
| Core Size | 8-Bit |
| Speed | 20 MHz |
| Flash Memory | 4KB (2K x 16) |
| EEPROM | 256B |
| SRAM | 512B |
| Number of I/O | 23 |
| Supply Voltage Range | 2.5V / 3.3V / 5V (4.5V to 5.5V at 20 MHz) |
| Instructions | 131, most single-cycle |
| General Purpose Working Registers | 32 |
| Timer/Counters | 3 flexible timer/counters with compare modes |
| Package Type | 32-UFBGA, 4 x 4 mm, 1 mm height, 0.45 mm pitch |
| 실장 유형 | Surface Mount (BGA) |
| 동작 온도 | -40C to +85C (industrial, I suffix) |
| Packaging | Tape & Reel (R suffix) |
| 수명 주기 상태 | ACTIVE |
| RoHS 상태 | GREEN package (per digchip) |
ATMEGA48A-CCUR 32-ufbga, 4 x 4 mm, 1 mm height, 0.45 mm pitch 핀 구성 가이드
ATMEGA48A-CCUR(32-ufbga, 4 x 4 mm, 1 mm height, 0.45 mm pitch 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATMEGA48A-CCUR.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATMEGA48A-CCUR 적합 용도: 6 애플리케이션s: Battery-Powered Sensor Nodes, Industrial Control and Actuator Boards, Consumer Appliances, Handheld and Portable Instruments, IoT Edge Nodes and RF Modules, Medical and Wellness Monitoring Accessories.
Battery-Powered Sensor Nodes
The ATMEGA48A-CCUR suits compact battery-powered sensor nodes because it combines a 4KB Flash program space with AVR low-power sleep modes and an internal calibrated RC oscillator, eliminating the crystal's quiescent power in non-critical timing designs. Running from a 3.3V coin cell or two AA cells, the device spends most of its life in power-down sleep and wakes on pin-change or timer interrupts to sample sensors via its 10-bit ADC. The 4 x 4 mm UFBGA footprint lets the MCU share a PCB with the RF module and battery clip in nodes under 1 cm square. Trade-off: wake-up and ADC overhead per sample should be budgeted in the energy model.
추천
Industrial Control and Actuator Boards
In industrial control, the ATMEGA48A-CCUR drives relays, valves, and small motors from its 23 general-purpose I/O lines while monitoring feedback through the 6-channel 10-bit ADC and the three timer/counters with compare modes for PWM generation. The industrial -40C to +85C temperature rating (I suffix) matches factory-floor ambient ranges, and the AVR watchdog timer plus brown-out detection provide the fault recovery required in unattended equipment. Operating at 5V gives 20 MHz full-speed execution and noise-robust logic levels on long wiring runs. The UFBGA package demands reflow assembly and X-ray inspection, which most industrial SMT lines already support.
추천
Consumer Appliances
Consumer appliance control boards - coffee makers, fans, small heaters, and chargers - fit comfortably within the ATMEGA48A-CCUR's 4KB Flash and 256B EEPROM, which stores user settings and calibration across power cycles. The internal 8 MHz RC oscillator removes the crystal BOM line, and the device's GREEN RoHS-compliant package satisfies consumer environmental regulations. At 5V and 20 MHz, button debouncing, LED multiplexing, and temperature control loops run with large timing margins. The 32-ball BGA minimizes PCB layers and size, cutting Appliance board cost. Volume pricing near USD 1.00-1.30 at 1000 pieces keeps the total control electronics budget small.
추천
Handheld and Portable Instruments
Portable instruments such as meters, testers, and diagnostic tools benefit from the ATMEGA48A-CCUR's combination of small footprint and low supply voltage operation down to the 2.5V class, extending battery runtime in 3.3V designs. The 10-bit ADC reads sensor bridges and divider networks directly, while SPI and I2C interfaces connect displays, EEPROM, and front-end ICs. The 4 x 4 mm BGA lets the MCU tuck under the display module on a dense two-layer PCB. Design consideration: the BGA cannot be reworked in the field, so prototype on the TQFP variant (ATMEGA48A-AU) and transition to the CCUR for production units.
추천
IoT Edge Nodes and RF Modules
As a companion controller beside an RF module (sub-GHz, Bluetooth, or proprietary 2.4 GHz radios), the ATMEGA48A-CCUR handles sensor polling, packet framing, and power management so the radio can sleep aggressively. Its 512B SRAM accommodates typical 802.15.4-class frame buffers, and the UART plus SPI interfaces link directly to common transceiver ICs. The small UFBGA footprint stacks well under or beside the RF module on compact PCBs, and power-down sleep current keeps the node's standby budget within milliamp-hour targets. Firmware fits comfortably: protocol stacks of this class typically consume 2-3KB of the available 4KB Flash.
추천
Medical and Wellness Monitoring Accessories
Low-power wellness accessories - thermometers, pulse monitors, and activity pucks - use the ATMEGA48A-CCUR where 4KB Flash covers measurement sequencing, filtering, and simple user interface logic. The 10-bit ADC digitizes sensor front ends, the EEPROM retains calibration constants, and sleep modes keep average current in the microamp range between measurement events. The RoHS GREEN package and industrial temperature rating align with medical accessory manufacturing requirements, and the 4 x 4 mm BGA suits wearable-form-factor PCBs. Design note: for designs that will later add USB or richer interfaces, the pin-compatible ATMEGA88A-CCUR or ATMEGA168A-CCUR provides a no-PCB-change memory upgrade path.
추천
추천 제품 요약
엔지니어링 참조 데이터: ATMEGA48A-CCUR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATMEGA48A-CCU | ATMEGA48PA-CCUR | ATMEGA88A-CCUR | ATMEGA168A-CCUR |
|---|---|---|---|---|---|
| Package | 32-UFBGA (4x4 mm, 0.45 mm pitch) | 32-UFBGA (4x4 mm) - same, tray | 32-UFBGA (4x4 mm) - same | 32-UFBGA (4x4 mm) - same | 32-UFBGA (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 4KB | 4KB | 4KB | 8KB | 16KB |
| SRAM | 512B | 512B | 512B | 1KB | 1KB |
| EEPROM | 256B | 256B | 256B | 512B | 512B |
| Max Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Power Optimization | Standard A-version | Standard A-version | picoPower | Standard A-version | Standard A-version |
| Packaging Format | Tape & Reel (R suffix) | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
주요 차별점
- Smallest-footprint ATmega48A option (vs ATMEGA48A-AU)
- Cost versus picoPower variant (vs ATMEGA48PA-CCUR)
- Same-footprint memory upgrade path (vs ATMEGA168A-CCUR)
설계 노트
The 32-UFBGA requires Microchip's recommended BGA land pattern with solder-mask-defined or non-solder-mask-defined pads at 0.45 mm pitch. Plan via-in-pad or dog-bone fanout carefully on the two outer ball rows; the inner rows on a 32-ball package usually escape through the center. Solder joint inspection requires X-ray because balls are concealed beneath the package. Do not plan hand rework - use the TQFP ATMEGA48A-AU on prototype boards and switch to the CCUR for production, or validate your assembly house's BGA capability first.
Decouple VCC and AVCC with 100 nF ceramic capacitors placed as close as possible to the respective supply balls, plus a bulk 4.7-10 uF capacitor per rail. If the ADC is used, connect AVCC to VCC through a low-pass LC network and tie AREF to a clean reference with its own 100 nF capacitor. Remember the speed-versus-voltage curve: 20 MHz is only valid near 4.5-5.5V; derate maximum frequency when operating at 3.3V or 2.5V to avoid marginal timing.
Reserve the RESET ball for ISP programming access; routing it as a general I/O locks out in-system reprogramming and forces BGA-level rework, which is effectively impossible. Bring MOSI/MISO/SCK and RESET to test pads or a 2x3 ISP header. Per Microchip application note AVR532, the A-version shares functionality with the original ATmega48 but has a separate datasheet - always verify fuse defaults and electrical characteristics against the ATmega48A document, not the older ATmega48 datasheet, when setting CKDIV8, BOD levels, and boot configuration.
규정 준수 정보
Package described as GREEN plastic per digchip listing, indicating RoHS/lead-free compliance. REACH, halogen-free, and conflict-minerals statements not present in provided data.
