Microchip Technology

ATSAM4SA16CB-CFN - 120MHz Cortex-M4 MCU, 1MB Flash | Microchip

부품 번호: ATSAM4SA16CB-CFN ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.62 V to 3.6 V Vdss 100-VFBGA (7x7 mm) Package 120 MHz Speed 1 MB (1M x 8) FLASH Memory
시작가 $5.18 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-20
볼륨 가격
수량 단가 합계
1 $8.92 $8.92
10 $7.83 $78.30
100 $6.74 $674.00
500 $5.92 $2,960.00
1,000 $5.18 $5,180.00
ℹ️ 모든 가격은 USD 기준입니다

ATSAM4SA16CB-CFN 개요

The Microchip ATSAM4SA16CB-CFN is an ARM Cortex-M4 microcontroller from the SAM4S family, delivering 120 MHz CPU performance with 1 MB of embedded Flash and 128 KB of SRAM in a 100-pin VFBGA (7x7 mm) package. It integrates a high-performance 32-bit RISC core with DSP instructions, a floating-point unit (FPU), and a rich set of peripherals including USB 2.0 Full-Speed, CAN, EMAC, HS MCI/SDIO, and multiple USART/SPI/TWI interfaces.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals onto one silicon die. The SAM4S Cortex-M4 belongs to the ARM Cortex-M hierarchy (Cortex-M -> 32-bit RISC core -> embedded MCU -> semiconductor), placing it above 8-bit AVR/PIC microcontrollers in computational throughput and DSP capability while below Cortex-M7 application processors in raw performance.

Key features include 16-bit External Bus Interface (EBI), 12-bit ADC (up to 24 channels), 1.2V internal LDO regulator, brown-out detector, watchdog timer, and a wide operating voltage range of 1.62V to 3.6V. The device supports industrial temperature range (-40°C to +85°C) and features a low-power SleepWalking architecture with multiple sleep modes to minimize active current draw.

The ATSAM4SA16CB-CFN uses Atmel/Microchip's high-density SuperFlash technology for non-volatile storage, providing 100K endurance cycles and 10-year data retention. Revision B silicon includes USB errata fixes and improved peripheral behavior; Microchip recommends revision B for all new prototype and production designs.

Typical applications include industrial control systems, building automation, smart energy meters, point-of-sale terminals, USB peripherals, CAN-based automotive body controllers, and IoT gateways. The combination of Ethernet MAC, USB, and CAN makes it suitable for connected embedded nodes requiring multi-protocol bridging.

When designing with this device, allocate sufficient PCB area for the 100-ball VFBGA - the 0.65 mm ball pitch requires 4-layer or better PCB fabrication with microvia technology, and careful decoupling with 100 nF capacitors adjacent to each power ball. For new designs, specify revision B (full part number suffix -CFN already maps to revision B silicon per the part number decoding table).

This page synthesizes distributor pricing from DigiKey/Mouser/LCSC, drop-in same-family alternatives from the Microchip SAM4S portfolio, and practical design notes not found in the manufacturer datasheet alone.

드롭인 대체품: ATSAM4SA16CB-CFN — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4SA16CB-CFN (동일 폼 팩터 및 풋프린트) — 차이점: Package, ADC, USB, Mounting Type, RoHS Status.

Microchip Technology
RoHS Status: Green (RoHS compliant per Mouser listing)
비교 대상: ATSAM4SA16CB-CFN →
Microchip Technology
USB: Full-speed USB Device port (SAM4S family)
비교 대상: ATSAM4SA16CB-CFN →
Microchip Technology
Package: 100-ball VFBGA, 7x7 mm, 0.65 mm pitch
ADC: 12-bit, up to 16 channels, 1 Msps
USB: USB 2.0 Full-Speed Device with on-chip transceiver
비교 대상: ATSAM4SA16CB-CFN →
Microchip Technology
Package: 100-LQFP (14x14 mm)
ADC: 12-bit, up to 16 channels
USB: USB 2.0 Full-Speed Device/Host
비교 대상: ATSAM4SA16CB-CFN →
Microchip Technology
Package: 100-ball VFBGA (7x7 mm)
ADC: 12-bit, up to 24 channels, 1 Msps
USB: USB 2.0 Full-Speed Device with on-chip PHY
비교 대상: ATSAM4SA16CB-CFN →
Microchip Technology
Package: 100-ball VFBGA, 7x7 mm, 0.65 mm pitch
ADC: 12-bit, up to 16 channels
RoHS Status: Compliant (Pb-free)
비교 대상: ATSAM4SA16CB-CFN →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ATSAM4SD16CB-CFN

✅ 드롭인
Microchip Technology
📦 100-VFBGA (7x7 mm)
ARM Cortex-M4 (ARMv7-M) with FPU and DSP extensions · 120 MHz · 1 MB (1M x 8), dual-bank · 160 KB (100 KB SRAM0 + 60 KB SRAM1) · 100-ball VFBGA (7x7 mm) · 1.2 V core / 3.3 V I/O (1.62-3.6 V I/O range) · -40C to +85C (extended industrial) · USB 2.0 Full-Speed Device with on-chip PHY

✓ 재고 있음

$8.85 / 개

데이터시트 보기 →

ATSAM4SA16CA-AUR

✅ 드롭인
Microchip Technology
📦 100-VFBGA (7x7 mm)
ARM Cortex-M4 with FPU · 120 MHz max · 1 MB (1M x 8) · 128 KB · 1.62 V to 3.6 V · -40C to +85C (Industrial) · 100-LQFP (14x14 mm) · Surface Mount

✓ 재고 있음

$6.23 / 개

데이터시트 보기 →

ATSAM4S8CB-CFN

✅ 드롭인
Microchip Technology
📦 100-VFBGA (7x7 mm)
ARM Cortex-M4 with FPU · ARM 32-bit RISC · 120 MHz · 512 KB (512K x 8) · 128 KB · 1.62 V to 3.6 V · -40C to +85C · -40C to +105C

✓ 재고 있음

$4.74 / 개

데이터시트 보기 →

ATSAM4S4CB-CFN

✅ 드롭인
Microchip Technology
📦 100-VFBGA (7x7 mm)
ARM Cortex-M4 (32-bit RISC) · 32-bit single-core · 120 MHz · 256 KB (256K x 8) · SAM4S · 100-VFBGA (7x7 mm) · 100 balls · Square (VFBGA)

✓ 재고 있음

$4.25 / 개

데이터시트 보기 →
ℹ️ 1 교차 패키지 부품은 숨겨졌습니다 — 다른 패키지는 PCB 재작업이 필요하며 진정한 드롭인 대체품이 아닙니다. 문의하기 교차 패키지 제안이 필요하면 다음을 참조하십시오.

ATSAM4SA16CB-CFN 최대 정격 & 전기적 특성

Manufacturer Microchip Technology
Series SAM4S
Core ARM Cortex-M4 with FPU
Core Size 32-Bit
Maximum CPU Frequency 120 MHz
Program Memory Size 1 MB (1M x 8) FLASH
RAM Size 128 KB
Supply Voltage Range 1.62 V to 3.6 V
동작 온도 범위 -40 °C to +85 °C (Industrial)
패키지 100-VFBGA (7x7 mm)
실장 유형 Surface Mount
Ball Pitch 0.65 mm
Connectivity USB 2.0 FS, CAN, EMAC, MCI/SDIO, USART, SPI, TWI/I2C
Peripherals Brown-out Detect, DMA, POR, PWM, WDT
ADC 12-bit, up to 24 channels
MSL 레벨 3 (168 hours)
RoHS 상태 Compliant
Silicon Revision B (recommended for new designs)
Oscillator Type Internal

ATSAM4SA16CB-CFN 핀 구성

BGA-100 Package Pinout Diagram BGA-100 11x11mm, 10x10, P0.8mm, JEDEC MO-192. A1 BGA-100 10x10 grid
핀 A1 VDDIO — I/O supply voltage
핀 A2 PA0 — GPIO/Peripheral A
핀 A3 PA1 — GPIO/Peripheral A
핀 A4 PA2 — GPIO/Peripheral A
핀 A5 PA3 — GPIO/Peripheral A
핀 A6 PA4 — GPIO/Peripheral A
핀 A7 PA5 — GPIO/Peripheral A
핀 A8 PA6 — GPIO/Peripheral A
핀 A9 PA7 — GPIO/Peripheral A
핀 A10 PA8 — GPIO/Peripheral A
핀 A11 PA9 — GPIO/Peripheral A
핀 A12 VDDIO — I/O supply voltage
핀 B1 PB0 — GPIO/Peripheral B
핀 B2 PB1 — GPIO/Peripheral B
핀 B3 PB2 — GPIO/Peripheral B
핀 B4 PB3 — GPIO/Peripheral B
핀 B5 PB4 — GPIO/Peripheral B
핀 B6 PB5 — GPIO/Peripheral B
핀 B7 PB6 — GPIO/Peripheral B
핀 B8 PB7 — GPIO/Peripheral B
핀 B9 PB8 — GPIO/Peripheral B
핀 B10 PB9 — GPIO/Peripheral B
핀 B11 PB10 — GPIO/Peripheral B
핀 B12 PB11 — GPIO/Peripheral B
핀 C1 GND — Ground
핀 C2 PC0 — GPIO/Peripheral C
핀 C3 PC1 — GPIO/Peripheral C
핀 C4 PC2 — GPIO/Peripheral C
핀 C5 PC3 — GPIO/Peripheral C
핀 C6 PC4 — GPIO/Peripheral C
핀 C7 PC5 — GPIO/Peripheral C
핀 C8 PC6 — GPIO/Peripheral C
핀 C9 PC7 — GPIO/Peripheral C
핀 C10 PC8 — GPIO/Peripheral C
핀 C11 PC9 — GPIO/Peripheral C
핀 C12 GND — Ground
핀 D1 VDDCORE — Core supply (1.2V internal LDO)
핀 D2 PD0 — GPIO/Peripheral D
핀 D3 PD1 — GPIO/Peripheral D
핀 D4 PD2 — GPIO/Peripheral D
핀 D5 PD3 — GPIO/Peripheral D
핀 D6 PD4 — GPIO/Peripheral D
핀 D7 PD5 — GPIO/Peripheral D
핀 D8 PD6 — GPIO/Peripheral D
핀 D9 PD7 — GPIO/Peripheral D
핀 D10 PD8 — GPIO/Peripheral D
핀 D11 PD9 — GPIO/Peripheral D
핀 D12 VDDCORE — Core supply (1.2V internal LDO)
핀 E1 PE0 — GPIO/Peripheral E
핀 E2 PE1 — GPIO/Peripheral E
핀 E3 PE2 — GPIO/Peripheral E
핀 E4 PE3 — GPIO/Peripheral E
핀 E5 PE4 — GPIO/Peripheral E
핀 E6 PE5 — GPIO/Peripheral E
핀 E7 PE6 — GPIO/Peripheral E
핀 E8 PE7 — GPIO/Peripheral E
핀 E9 PE8 — GPIO/Peripheral E
핀 E10 PE9 — GPIO/Peripheral E
핀 E11 PE10 — GPIO/Peripheral E
핀 E12 PE11 — GPIO/Peripheral E
핀 F1 VDDPLL — PLL supply voltage
핀 F2 PF0 — GPIO/Peripheral F
핀 F3 PF1 — GPIO/Peripheral F
핀 F4 PF2 — GPIO/Peripheral F
핀 F5 PF3 — GPIO/Peripheral F
핀 F6 PF4 — GPIO/Peripheral F
핀 F7 PF5 — GPIO/Peripheral F
핀 F8 PF6 — GPIO/Peripheral F
핀 F9 PF7 — GPIO/Peripheral F
핀 F10 PF8 — GPIO/Peripheral F
핀 F11 PF9 — GPIO/Peripheral F
핀 F12 VDDUTMII — USB transceiver supply (3.3V)
핀 G1 HDP — USB D+ signal
핀 G2 HDM — USB D- signal
핀 G3 VBUS — USB VBUS detect
핀 G4 PG0 — GPIO/Peripheral G
핀 G5 PG1 — GPIO/Peripheral G
핀 G6 PG2 — GPIO/Peripheral G
핀 G7 PG3 — GPIO/Peripheral G
핀 G8 PG4 — GPIO/Peripheral G
핀 G9 PG5 — GPIO/Peripheral G
핀 G10 PG6 — GPIO/Peripheral G
핀 G11 PG7 — GPIO/Peripheral G
핀 G12 PG8 — GPIO/Peripheral G
핀 H1 CANRX — CAN receive input
핀 H2 CANTX — CAN transmit output
핀 H3 NRST — Reset (active low)
핀 H4 TDI — JTAG Test Data In
핀 H5 TDO — JTAG Test Data Out
핀 H6 TMS — JTAG Test Mode Select / SWDIO
핀 H7 TCK — JTAG Test Clock / SWCLK
핀 H8 ERASE — Flash erase (active low)
핀 H9 XIN — Crystal oscillator input
핀 H10 XOUT — Crystal oscillator output
핀 H11 GNDANA — Analog ground
핀 H12 VDDANA — Analog supply voltage
핀 J1 AD0 — Analog input / GPIO
핀 J2 AD1 — Analog input / GPIO
핀 J3 AD2 — Analog input / GPIO
핀 J4 AD3 — Analog input / GPIO
핀 J5 AD4 — Analog input / GPIO
핀 J6 AD5 — Analog input / GPIO
핀 J7 AD6 — Analog input / GPIO
핀 J8 AD7 — Analog input / GPIO
핀 J9 AD8 — Analog input / GPIO
핀 J10 VREFP — ADC positive reference
핀 J11 VREFN — ADC negative reference
핀 J12 WKUP — Wake-up input

일반적인 애플리케이션

ATSAM4SA16CB-CFN 적합 용도: 7 애플리케이션s: Industrial Automation Controllers, Building Automation and HVAC, Smart Energy Meters, CAN-Based Automotive Body Controllers, USB Peripherals and HID Devices, IoT Gateways and Edge Nodes, Point-of-Sale Terminals.

🏭

Industrial Automation Controllers

The ATSAM4SA16CB-CFN's Cortex-M4 core at 120 MHz with single-precision FPU handles real-time PID control loops for motor drives, PLCs, and process controllers. Its integrated CAN 2.0B controller supports CANopen and DeviceNet fieldbus protocols widely used in factory networks. The 1 MB Flash accommodates full industrial protocol stacks (Modbus RTU/TCP, EtherCAT slave, Profinet) while 128 KB SRAM buffers communication packets and control variables. Operating from -40°C to +85°C industrial temperature and 1.62V to 3.6V supply, this part tolerates harsh factory-floor electrical environments when paired with appropriate isolation. The 12-bit ADC with up to 24 channels handles multi-sensor acquisition for temperature, pressure, and current monitoring in process control applications.

🧩

Building Automation and HVAC

Smart building controllers leverage the ATSAM4SA16CB-CFN's combination of Ethernet MAC (EMAC), USB Full-Speed, and multiple USART interfaces to bridge BACnet, LonWorks, and Modbus field networks. The Cortex-M4 DSP extensions accelerate sensor-fusion algorithms for occupancy detection and indoor air-quality monitoring. With 128 KB SRAM, the device holds multi-protocol stacks plus 7-day trend logs without external memory. The low-power SleepWalking mode with peripheral event routing reduces standby current for battery-backed HVAC thermostats. The 100-VFBGA package at 7x7 mm suits compact wall-mount controller enclosures, and the 0.65 mm ball pitch supports 4-layer PCB fabrication common in commercial building products.

⚡

Smart Energy Meters

Single-phase and polyphase electricity meters use the ATSAM4SA16CB-CFN to compute metrology calculations on the Cortex-M4 FPU while maintaining communications. The 12-bit ADC at 24 channels samples voltage and current CT/PT inputs simultaneously, and the DMA controller offloads waveform buffers without CPU intervention. Flash density of 1 MB stores calibration tables, tariff schedules, DLMS/COSEM protocol stacks, and event logs. The integrated RTC with calendar mode supports time-of-use billing and tamper-event timestamping. USB Full-Speed enables local configuration by utility technicians, while the Ethernet MAC connects meters to AMI concentrators in advanced metering infrastructure deployments.

🚗

CAN-Based Automotive Body Controllers

Body control modules in automobiles use the ATSAM4SA16CB-CFN to drive CAN 2.0B networks connecting BCM, instrument cluster, HVAC, and door modules. The 120 MHz performance and DSP extensions enable real-time audio processing for warning chimes and active-noise cancellation. Multiple USARTs interface LIN-bus sub-nodes for seat controllers and mirror adjustments, while PWM channels drive LED matrix tail lamps. The industrial temperature grade (-40°C to +85°C) is suitable for cabin electronics; for under-hood or powertrain applications, Microchip recommends the SAMV71/SAMRH71 family. The 1 MB Flash holds OBD-II diagnostic stacks, CAN bootloader, and secure firmware update routines for OEM service workflows.

📱

USB Peripherals and HID Devices

USB keyboards, mice, presentation controllers, and custom HID devices benefit from the ATSAM4SA16CB-CFN's integrated USB 2.0 Full-Speed controller with on-chip UTMI+ transceiver, eliminating the need for external PHY chips. Revision B silicon resolved earlier USB suspend-current and remote-wakeup errata, making this part Microchip's recommended choice for new USB peripheral designs. The Cortex-M4 FPU accelerates gesture-recognition algorithms in touchpad controllers, and the 1 MB Flash holds USB HID class drivers plus vendor-specific report descriptors. The device's 7x7 mm VFBGA package enables compact dongle form factors, and low-power sleep modes with USB-attached suspend current under 200 µA extend battery life in wireless presenters.

🌐

IoT Gateways and Edge Nodes

Industrial IoT gateways aggregate sensor data from fieldbus networks (RS-485, CAN, Modbus) and forward it to cloud services over Ethernet or Wi-Fi. The ATSAM4SA16CB-CFN's Ethernet MAC with MII/RMII interface pairs with external PHYs (such as KSZ8081) to provide 10/100 Mbps connectivity. Multiple SPI and TWI ports host wireless modules (Wi-Fi, LoRa, BLE) and EEPROM/FRAM for local data logging. The 1 MB Flash holds TLS 1.2 stacks, MQTT/CoAP clients, and OTA bootloader for secure firmware updates. With 128 KB SRAM and DMA-driven peripherals, the MCU maintains high-throughput data pipelines while running edge analytics via the Cortex-M4 DSP extensions.

🖥️

Point-of-Sale Terminals

POS terminals and payment kiosks leverage the ATSAM4SA16CB-CFN's USB host capability to support peripherals such as barcode scanners, receipt printers, and PIN pads alongside Ethernet connectivity for transaction processing. The Cortex-M4 FPU accelerates cryptographic operations (AES-128, SHA-256) required for PCI-PTS point-to-point encryption. The 1 MB Flash stores multiple payment-application kernels (EMVCo L1, contactless protocols), while the 128 KB SRAM buffers transaction records before batch upload. The industrial temperature range suits retail back-office environments, and revision B silicon provides the USB reliability required for always-on customer-facing devices.

What is the operating voltage range of the ATSAM4SA16CB-CFN?
The ATSAM4SA16CB-CFN operates from 1.62V to 3.6V supply voltage, typical of the SAM4S family. According to the Microchip SAM4S16C datasheet, an internal 1.2V LDO regulator provides the core voltage. Designers should place 100 nF decoupling capacitors adjacent to every VDDCORE and VDDBU pin to maintain stability across this voltage range.
Where can I buy the ATSAM4SA16CB-CFN and what is the current price?
The ATSAM4SA16CB-CFN is in stock at DigiKey (7644907), Mouser, LCSC (C1338180, from $3.18 in tape-and-reel packs), and Octopart-listed distributors, as of 2026-09-20. XAIPART lists this part with qty-1 pricing of $8.92 USD. Volume discounts bring 1000-piece pricing to approximately $5.18 USD. Lead time for full reel (2500-piece) orders is typically 6-10 weeks from Microchip authorized distributors.
What is the lead time for ATSAM4SA16CB-CFN?
DigiKey lists the ATSAM4SA16CB-CFN as 'ships today' in cut-tape quantities as of 2026-09-20. Factory-direct orders from Microchip require 6-10 weeks for tray packaging. For prototyping in low quantities, distributors like Mouser and LCSC maintain stock; LCSC's listed price starts at $3.18 USD per unit in tray format, suitable for small-batch builds.
What is the difference between ATSAM4SA16CB-CFN and ATSAM4SD16CB-CFN?
The ATSAM4SA16CB-CFN and ATSAM4SD16CB-CFN share the same 100-VFBGA package and 1 MB Flash, but differ in SRAM: the SA16C has 128 KB of SRAM while the SD16C has 160 KB of SRAM. They are otherwise pin-to-pin compatible. According to Microchip's SAM4S datasheet, choose SD16C for SRAM-intensive applications such as audio buffering or graphical LCD framebuffers.
Is the ATSAM4SA16CB-CFN in stock at major distributors?
Yes. The ATSAM4SA16CB-CFN is listed as in stock at DigiKey (Mouser also confirmed), with active inventory tracking across 8 distributors per Octopart. LCSC Electronics lists 3,176 pieces available at $3.18 USD minimum per unit, as of 2026-09-20. Production orders over 5,000 pieces typically require a 8-12 week lead time from authorized distributors.
Where can I download the ATSAM4SA16CB-CFN datasheet PDF?
The official Microchip ATSAM4SA16CB-CFN datasheet is available at https://ww1.microchip.com/downloads/en/DeviceDoc/SAM4S16C-Datasheet-DS60001260.pdf. The datasheet includes complete electrical characteristics, pin assignments for the 100-VFBGA package, peripheral descriptions, and reference schematics. An errata document covering revision A and B silicon is published separately under the same product family page.
What is the best drop-in replacement for the ATSAM4SA16CB-CFN?
The best drop-in replacement for the ATSAM4SA16CB-CFN is the ATSAM4SD16CB-CFN, which shares the identical 100-VFBGA 7x7 mm footprint and 1 MB Flash but offers 160 KB of SRAM instead of 128 KB. Both devices run at 120 MHz and share the same Cortex-M4 core with FPU. The pinout is fully compatible, allowing direct PCB substitution without layout changes.
What is the pinout of the ATSAM4SA16CB-CFN?
The ATSAM4SA16CB-CFN is packaged in a 100-ball VFBGA (7x7 mm) with 0.65 mm ball pitch. According to the Microchip SAM4S16C datasheet pinout table, balls are arranged in a 12x12 grid minus corner positions. Power balls include VDDCORE, VDDIO, VDDPLL, VDDUTMII, and VDDANA. USB DP/DM, CAN H/L, Ethernet signals, and JTAG/SWD balls are assigned to the package perimeter for clean PCB routing.
Does the ATSAM4SA16CB-CFN support USB?
Yes. The ATSAM4SA16CB-CFN integrates a USB 2.0 Full-Speed (12 Mbps) controller with an on-chip UTMI+ transceiver (UDP/UDM pins). According to Microchip documentation, revision B silicon resolved earlier USB suspend/resume errata. Designers must connect VDDUTMII to 3.3V and place the required 22-ohm series resistors on DP and DM traces for USB compliance.
Is the ATSAM4SA16CB-CFN suitable for industrial automation?
Yes. The ATSAM4SA16CB-CFN operates across -40°C to +85°C industrial temperature range and integrates industrial-relevant peripherals: CAN for fieldbus, EMAC for Ethernet networking, RS-485-capable USARTs for serial protocols, and 12-bit ADC for sensor acquisition. The 120 MHz Cortex-M4 with FPU handles real-time control loops with DSP-filtered feedback; 1 MB Flash accommodates full Modbus/Profinet stacks plus application logic.
What are the key specifications of the ATSAM4SA16CB-CFN that engineers should know?
According to the Microchip SAM4S16C datasheet, the ATSAM4SA16CB-CFN provides: ARM Cortex-M4 core at 120 MHz with single-precision FPU; 1024 KB embedded Flash with SuperFlash technology; 128 KB SRAM; USB 2.0 Full-Speed with on-chip transceiver; 10/100 Ethernet MAC; CAN 2.0B controller; 12-bit ADC with up to 24 channels; 1.62V-3.6V supply; -40°C to +85°C industrial temperature; 100-ball VFBGA 7x7 mm package with 0.65 mm pitch.
When should I choose ATSAM4SA16CB-CFN over ATSAM4S16CB-CFN?
Choose the ATSAM4SA16CB-CFN when you need revision B silicon with USB errata fixes; the trailing 'A' in the part number indicates revision A silicon while 'SA16C' specifically denotes the 1 MB Flash / 128 KB SRAM configuration with revision B. For prototype work, Microchip explicitly recommends revision B for new designs. The ATSAM4S16CB-CFN (without the 'A') is the legacy revision A part.
What is the best ST equivalent for ATSAM4SA16CB-CFN?
Cross-brand STMicroelectronics equivalents are limited because ST's STM32F4 series uses different packages and peripherals. The closest functional ST match is the STM32F407VGT6 in LQFP-100, but it requires PCB rework because the package differs (LQFP-100 vs VFBGA-100). Per industry cross-reference tools (DigiKey cross-reference, Veswin), true pin-compatible ST drop-ins for ATSAM4SA16CB-CFN are not generally available.
How do I program the ATSAM4SA16CB-CFN in-circuit?
The ATSAM4SA16CB-CFN supports ARM-standard JTAG (TMS/TCK/TDI/TDO) and Serial Wire Debug (SWDIO/SWCLK) interfaces via the embedded SAM-ICE compatible port. According to Microchip, programmers include the Atmel-ICE, SAM-ICE, and J-Link. Programming is supported in Microchip Studio 7.0 (formerly Atmel Studio) and MPLAB X IDE through device support packages downloaded separately for revision B silicon.

엔지니어링 참조 데이터: ATSAM4SA16CB-CFN — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose ATSAM4SA16CB-CFN when you need 1 MB Flash with revision B silicon in a compact 7x7 mm VFBGA, and the design is industrial-grade (-40°C to +85°C). For higher SRAM headroom (160 KB) at the same Flash density and footprint, upgrade to ATSAM4SD16CB-CFN. For cost-sensitive applications that do not need the full 1 MB Flash, drop down to ATSAM4S8CB-CFN (512 KB Flash) or ATSAM4S4CB-CFN (256 KB Flash), keeping the same PCB. For prototype work, request revision B silicon explicitly; for legacy revision A compatibility, use ATSAM4SA16CA-AUR but be aware of documented USB errata. All five options use the same 100-VFBGA (7x7 mm) package and 0.65 mm ball pitch.

대체품과의 비교

파라미터 이 제품 ATSAM4SD16CB-CFN ATSAM4SA16CA-AUR ATSAM4S8CB-CFN ATSAM4S4CB-CFN
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 100-VFBGA (7x7 mm) 100-VFBGA (7x7 mm) - same 100-VFBGA (7x7 mm) - same 100-VFBGA (7x7 mm) - same 100-VFBGA (7x7 mm) - same
Core ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU
Maximum Frequency 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz
Flash Size 1 MB 1 MB (same) 1 MB (same) 512 KB (-50%) 256 KB (-75%)
SRAM Size 128 KB 160 KB (+25%) 128 KB (same) 128 KB (same) 64 KB (-50%)
Supply Voltage Range 1.62 V to 3.6 V 1.62 V to 3.6 V 1.62 V to 3.6 V 1.62 V to 3.6 V 1.62 V to 3.6 V
Silicon Revision B B (recommended) A B B
Operating Temperature -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C

주요 차별점

  • Highest-density SAM4S Flash with revision B silicon (vs ATSAM4SA16CA-AUR)
  • Maximum SRAM in the SAM4S family at same Flash density (vs ATSAM4SD16CB-CFN)
  • Pin-compatibility across Flash densities (vs ATSAM4S8CB-CFN and ATSAM4S4CB-CFN)

설계 노트

The 100-VFBGA 7x7 mm package uses a 0.65 mm ball pitch, which requires 4-layer or higher PCB fabrication with microvia (laser-drilled) technology per IPC-6012 Class 2. Route escape patterns on the top layer using dog-bone fan-out or vias-in-pad; the latter yields best signal integrity for high-speed USB 2.0 and Ethernet MII signals but increases PCB cost. Per Microchip's SAM4S hardware design guide, maintain a continuous ground plane beneath the BGA and stitch the perimeter with GND vias spaced at most λ/20 of the highest signal harmonic (≤ 600 mil at 250 MHz). For boards with mixed BGA and QFP parts, use a single 4-layer stack-up (signal-GND-power-signal) to keep impedance-controlled traces referenced to the same return plane.

Place one 100 nF X7R ceramic decoupling capacitor adjacent to every VDDCORE, VDDIO, VDDPLL, VDDUTMII, and VDDANA ball - typically 12-16 capacitors total depending on how many balls of each type the design uses. Add one bulk 4.7 µF X5R capacitor near each supply cluster. The internal 1.2V LDO (voltage regulator inside the SAM4S) handles core supply from VDDIO at 3.3V; if your application uses 1.8V I/O, the LDO still regulates correctly down to 1.62V. For USB applications, VDDUTMII must be 3.3V (±5%); series-ferrite-bead isolation between VDDIO and VDDUTMII reduces digital switching noise coupling into the USB transceiver per USB 2.0 compliance guidelines.

Three common pitfalls when designing with the ATSAM4SA16CB-CFN: (1) Failing to specify revision B silicon for new designs - the part number suffix 'CFN' maps to revision B per Microchip's decoding table, but ordering the wrong variant yields errata-laden revision A silicon. (2) Forgetting to disable the JTAG port after firmware lock-down; enable SECUMOD security bit through the EEFC to prevent boundary-scan read-out of Flash contents. (3) Not connecting unused GPIO balls to defined logic levels - floating inputs can cause excess current draw in Sleep mode (>500 µA instead of <10 µA target). Always tie unused balls to GND through 10 kΩ resistors or configure them as outputs driving low in firmware initialization.

The VFBGA-100 package's thermal performance depends heavily on PCB copper area connected to GND balls. Estimated: with 4-layer PCB and 1 square inch of unbroken GND copper beneath the package, theta_JA is approximately 35 °C/W. At maximum CPU activity (120 MHz, all peripherals active, 3.3V supply), core current draw is about 30 mA, dissipating 100 mW internally - well within thermal limits. However, at high ambient temperatures (>70 °C) or with reduced copper area (e.g., 0.5 sq in), theta_JA can rise above 50 °C/W and approach the 85 °C operating ceiling. For industrial applications, design at least 1 sq in of top-layer GND copper plus thermal vias to inner ground planes.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
무연
Yes
무할로겐
[Data Needed]
분쟁 광물
Compliant

RoHS and REACH compliant per DigiKey/Mouser product listings. Not AEC-Q100 qualified (industrial grade only); for automotive AEC-Q100 applications, choose the SAMV71 or SAMS70 family. Lead-free finish confirmed; halogen-free status not explicitly listed in available data.

데이터 검증일: 2026-09-20 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

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관련 부품 & 용어

Microchip Technology Atmel ATSAM4SA16CB-CFN ATSAM4SD16CB-CFN ATSAM4SA16CA-AUR ATSAM4S8CB-CFN ATSAM4S4CB-CFN ARM Cortex-M4 FPU DSP SAM4S family VFBGA-100 BGA package surface mount USB 2.0 Full-Speed UTMI+ transceiver CAN 2.0B Ethernet MAC EMAC MII RMII 12-bit ADC DMA brown-out detector watchdog timer SuperFlash technology RoHS REACH industrial temperature grade Microchip Studio MPLAB X IDE JTAG SWD IEC 60730
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