ATSAM4LS4BA-UUR - 48MHz Cortex-M4 MCU 256KB Flash | Microchip
부품 번호: ATSAM4LS4BA-UUR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $7.42 | $7.42 |
| 10 | $6.68 | $66.80 |
| 100 | $6.5123 | $651.23 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.75 | $5,750.00 |
ATSAM4LS4BA-UUR 개요
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one chip, forming the lowest layer of the embedded systems hierarchy: MCU -> embedded processor -> system-on-chip -> semiconductor device. The SAM4L family belongs to Atmel (now Microchip Technology) ARM-based flash microcontrollers, positioned for low-power embedded control.
Key features include the high-performance 32-bit ARM Cortex-M4 RISC processor core, 10-bit and 12-bit ADC options for analog sensing, and operation across multiple nominal supply rails of 1.8V, 2V, 2.3V, and 3.3V. The extremely compact 64-WLCSP (4.31 x 4.43 mm) ball grid array package makes the device attractive for space-constrained portable electronics where board area is the dominant constraint.
Technically, the SAM4L series is a member of a family of flash microcontrollers based on the high-performance 32-bit ARM Cortex-M4 RISC processor. The Cortex-M4 core brings hardware DSP instructions and single-cycle MAC capability, allowing filtering and control-loop math to execute efficiently at the modest 48 MHz clock while preserving the SAM4L series low-power design philosophy.
Typical applications include battery-powered portable instruments, wearable and sensor-node designs, industrial sensing front-ends using the 10/12-bit ADCs, and compact embedded controllers where a 32-bit ARM ecosystem with 256KB of on-chip flash is required in a minimal footprint.
A key design consideration is the WLCSP package itself: wafer-level chip-scale balls demand tight PCB pad accuracy and reflow control, and the underside ball array requires careful via-in-pad or escape-routing strategy for signal access.
This page synthesizes distributor pricing, drop-in family alternatives, comparison data, and practical WLCSP layout guidance not consolidated in the manufacturer datasheet.
드롭인 대체품: ATSAM4LS4BA-UUR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4LS4BA-UUR (동일 폼 팩터 및 풋프린트) — 차이점: Package, Flash Memory, Core Size, Packaging, Wake-up Time.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATSAM4LC4BA-UUR
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →ATSAM4LC8BA-UUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$3.95 / 개
데이터시트 보기 →ATSAM4LS8BA-UUR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$2.03 / 개
데이터시트 보기 →ATSAM4LS2BA-UUR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4LC2BA-UUR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ATSAM4LS4BA-UUR 최대 정격 & 전기적 특성
| Core Processor | ARM Cortex-M4 |
| Core Size | 32-Bit |
| 최대 클록 주파수 | 48 MHz |
| Program Memory Type | FLASH |
| Program Memory Size | 256KB (256K x 8) |
| RAM Size | 32K x 8 |
| Supply Voltage Range (Vcc/Vdd) | 1.62V to 3.6V |
| Nominal Supply Voltages | 1.8V / 2V / 2.3V / 3.3V |
| Series | SAM4L |
| ADC Resolution | 10-bit and 12-bit |
| 패키지 | 64-WLCSP (4.31 x 4.43 mm) |
| Supplier Device Package | 64-WLCSP (4.31x4.43) |
| Terminal Form | Ball Grid Array (WLCSP) |
| Number of Terminals | 64 |
| 실장 유형 | Surface Mount |
| Packaging | Tape & Reel (T/R) |
ATSAM4LS4BA-UUR 64-wlcsp (4.31x4.43) 핀 구성 가이드
ATSAM4LS4BA-UUR(64-wlcsp (4.31x4.43) 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: ATSAM4LS4BA-UUR.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATSAM4LS4BA-UUR 적합 용도: 6 애플리케이션s: Wearable and Portable Devices, Battery-Powered Sensor Nodes, Industrial Analog Sensing Front-Ends, Compact Embedded Controllers, Health and Medical Monitoring Devices, IoT Edge Nodes and Smart Home Devices.
Wearable and Portable Devices
The ATSAM4LS4BA-UUR fits wearables because its 64-ball WLCSP measures only 4.31 x 4.43 mm, one of the smallest footprints available for a 256KB flash 32-bit ARM MCU, freeing board area for battery and sensors. The 1.62V to 3.6V supply range allows direct connection to a 3V coin cell or single-cell primary lithium across its full discharge curve, eliminating a regulator stage. The 48 MHz Cortex-M4 with hardware DSP instructions processes sensor fusion and filtering locally at low clock rates, conserving energy compared with higher-clocked parts. Place the MCU on a rigid-flex segment with via-in-pad escapes; the SAM4L low-power architecture supports long standby between sensor samples.
추천
Battery-Powered Sensor Nodes
In battery-powered sensor nodes, the ATSAM4LS4BA-UUR aligns through its 10-bit and 12-bit ADCs, which digitize analog sensors without an external converter, and its 1.62V to 3.6V input tolerance that accepts three alkaline cells (4.5V via LDO) or a 3V lithium cell directly. The 48 MHz Cortex-M4 core executes duty-cycled acquisition bursts quickly, so the MCU spends most of its lifetime in sleep. With 256KB flash, protocol stacks such as BLE host layers or LoRaWAN MAC firmware fit on-chip without external storage. Budget sensor excitation and radio transmit as the dominant energy consumers; the MCU contribution shrinks further when sampling intervals exceed one second.
추천
Industrial Analog Sensing Front-Ends
Industrial sensor front-ends benefit from the ATSAM4LS4BA-UUR because the integrated 10-bit and 12-bit ADCs convert 0-3.3V analog channels directly, while the Cortex-M4 single-cycle MAC and DSP instructions run digital filtering (IIR notch, FIR averaging) at 48 MHz without external DSP hardware. The 1.62V to 3.6V tolerance survives the sag and ripple typical of industrial 3.3V rails, and the 256KB flash holds lookup tables, calibration data, and communication firmware simultaneously. Mount the WLCSP on the underside of a four-layer board with a solid ground plane under the ball array; keep ADC reference traces short and star-grounded to preserve effective converter resolution in electrically noisy panels.
추천
Compact Embedded Controllers
For compact embedded controllers where a 32-bit ARM ecosystem is required in minimal area, the ATSAM4LS4BA-UUR provides 256KB flash and 32KB SRAM on-chip, sufficient for a bootloader plus application image with room for field firmware updates. The 48 MHz Cortex-M4 delivers roughly 1.25 DMIPS/MHz class throughput adequate for I/O scheduling and lightweight control loops, and the WLCSP-64 ball count exposes enough GPIO for keypad, display, and actuator interfaces in a 4.31 x 4.43 mm body. Design the carrier PCB with HDI microvias and X-ray inspection in the test plan; the concealed ball array prevents optical inspection of solder joints after reflow.
추천
Health and Medical Monitoring Devices
Medical monitoring accessories such as pulse oximeters and portable ECG front-ends use the ATSAM4LS4BA-UUR for its combination of 12-bit ADC resolution for physiological signals, DSP capability for digital filtering of motion artifacts, and the small 64-WLCSP body that suits adhesive patch and handheld form factors. The wide 1.62V to 3.6V operating range tolerates battery voltage droop across the full discharge profile, an important reliability factor in safety-relevant wearables. Sample physiologic channels at typical rates of 125 to 500 sps, apply the Cortex-M4 MAC unit to 50/60 Hz notch filtering in firmware, and confirm the final assembly meets applicable medical electrical safety standards for patient-coupled circuits.
추천
IoT Edge Nodes and Smart Home Devices
IoT edge nodes leverage the ATSAM4LS4BA-UUR because 256KB of flash accommodates network stacks (MQTT, BLE peripheral profiles) plus application logic, while the 48 MHz Cortex-M4 with DSP instructions handles payload encryption and sensor preprocessing locally. The WLCSP 4.31 x 4.43 mm package lets designers embed compute inside wall plates, door sensors, and bulb form factors where every square millimeter counts, and the 1.62V floor permits direct operation from two NiMH cells (2.4V nominal). Keep the radio power amplifier supply separate from the MCU rail, as transmit bursts of 100-300 mA can induce droop; the MCU tolerance range of up to 3.6V provides headroom for a shared 3.3V rail design.
추천
추천 제품 요약
엔지니어링 참조 데이터: ATSAM4LS4BA-UUR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATSAM4LC4BA-UUR | ATSAM4LC8BA-UUR | ATSAM4LS8BA-UUR | ATSAM4LS2BA-UUR | ATSAM4LC2BA-UUR |
|---|---|---|---|---|---|---|
| Package | 64-WLCSP (4.31 x 4.43 mm) | 64-WLCSP (4.31 x 4.43 mm) - same | 64-WLCSP (4.31 x 4.43 mm) - same | 64-WLCSP (4.31 x 4.43 mm) - same | 64-WLCSP (4.31 x 4.43 mm) - same | 64-WLCSP (4.31 x 4.43 mm) - same |
| Brand | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) | Microchip Technology (Atmel) |
| Core | ARM Cortex-M4, 32-bit | ARM Cortex-M4, 32-bit | ARM Cortex-M4, 32-bit | ARM Cortex-M4, 32-bit | ARM Cortex-M4, 32-bit | ARM Cortex-M4, 32-bit |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| Flash Memory | 256KB (256K x 8) | 256KB | 512KB | 512KB | 128KB | 128KB |
| Supply Voltage Range | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V | 1.62V to 3.6V |
| Family / Peripheral Emphasis | SAM4LS (low-power walk/sleep modes) | SAM4LC (complete feature set) | SAM4LC (complete feature set) | SAM4LS (low-power walk/sleep modes) | SAM4LS (low-power walk/sleep modes) | SAM4LC (complete feature set) |
| Packaging | Tape & Reel (T/R) | Tape & Reel (T/R) | Tape & Reel (T/R) | Tape & Reel (T/R) | Tape & Reel (T/R) | Tape & Reel (T/R) |
주요 차별점
- Smallest-footprint 256KB ARM MCU option (vs ATSAM4LS4BA-AUR)
- Pin-compatible 512KB flash upgrade (vs ATSAM4LC8BA-UUR)
- Cost-down path without redesign (vs ATSAM4LS2BA-UUR)
설계 노트
The 64-WLCSP (4.31 x 4.43 mm) package uses a fine-pitch ball array on the underside of the die, so route escapes with via-in-pad (filled and plated) or 0.2 mm-class microvias on the layer directly beneath. Use NSMD pads sized per the manufacturer package drawing and follow Microchip WLCSP application guidance for solder-mask opening and reflow profile to avoid solder beading. Because solder joints are invisible after reflow, include X-ray or boundary-scan coverage in your production test plan; optical AOI will only see the perimeter balls.
The 1.62V to 3.6V supply range accepts 1.8V, 2V, 2.3V, and 3.3V nominal rails directly. Decouple each supply ball with 100 nF ceramics placed on the immediate layer beneath the array, plus one bulk 4.7-10 uF capacitor per rail. If sharing a 3.3V rail with radios or motor drivers, isolate the MCU rail with a ferrite bead, since transmit bursts on a shared rail can dip below the 1.62V brown-out threshold. Verify the brown-out reset threshold setting in firmware matches your worst-case rail droop.
Do not confuse the U-suffix WLCSP part with the A-suffix TQFP part (e.g., ATSAM4LS4BA-AUR): although the silicon and memory are identical, the packages are mechanically incompatible and the AUR variant cannot be substituted onto a WLCSP land pattern. Also confirm the SAM4LS versus SAM4LC family selection before tape-out, because peripheral sets differ between the two families even on the same footprint. Flash-size variants within the same package are pin-compatible, but always verify the exact ball map in the current datasheet revision before layout release.
규정 준수 정보
Compliance status was not stated in the provided verified web data; confirm RoHS/REACH status on the official Microchip product page before ordering.
