Microchip Technology

ATSAM4SD32CB-CFN - 120MHz Cortex-M4 MCU 2MB Flash | Microchip

부품 번호: ATSAM4SD32CB-CFN ✓ 활성
재고 있음 영업일 기준 1~3일 내 발송
1.62 V to 3.6 V Vdss 100-ball VFBGA, 7x7 mm, 0.65 mm pitch Package 120 MHz Speed 2 MB (2048 KB) Memory
시작가 $6.05 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-20
볼륨 가격
수량 단가 합계
1 $9.85 $9.85
10 $8.9 $89.00
100 $7.62 $762.00
500 $6.78 $3,390.00
1,000 $6.05 $6,050.00
ℹ️ 모든 가격은 USD 기준입니다

ATSAM4SD32CB-CFN 개요

The Microchip Technology ATSAM4SD32CB-CFN is a 32-bit ARM Cortex-M4 microcontroller from the SAM4S family, delivering up to 120 MHz core performance with 2 MB of embedded Flash and 160 KB of SRAM, packaged in a 100-ball 7x7 mm VFBGA. The device integrates a single-precision Floating Point Unit (FPU), a Memory Protection Unit (MPU), and up to 4 Kbytes of cache, providing a balanced combination of computational density and deterministic real-time response.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (SRAM), and a rich set of peripherals (timers, communication controllers, ADCs, GPIOs). The ARM Cortex-M4 is a 32-bit RISC core with DSP extensions and an optional FPU, purpose-built for embedded deterministic control in cost- and power-sensitive applications. The SAM4S family extends this core with Microchip-specific peripherals (HS USB, EMAC, CAN, SSC) and aims at industrial, consumer, and connectivity-enabled embedded designs.

Key features of the ATSAM4SD32CB-CFN include 2 MB dual-bank Flash, 160 KB SRAM, full-speed USB Device port with on-chip transceiver, up to 16 peripheral DMA channels, 12-bit ADC, two 16-bit timers, and up to five USART, three SPI, and two TWI (I2C-compatible) interfaces. An integrated 32-bit real-time timer and a 128-bit unique device ID are also provided. The Cortex-M4 core with FPU executes Thumb-2 instructions and DSP blocks at up to 1.25 DMIPS/MHz, allowing digital signal processing workloads to share the same MCU that performs supervisory control.

The architecture uses a multi-layer bus matrix connecting the Cortex-M4 core, Flash controller, SRAM, and peripheral bridges, minimising contention under concurrent DMA transfers. The 100-ball VFBGA (7x7 mm, 0.65 mm pitch) supports compact layouts for space-constrained designs and provides ample GPIO for parallel buses and high-pin-count peripherals. The 1.2 V internal core is regulated from a single 1.62 V to 3.6 V external supply, simplifying power-tree design.

Typical applications include industrial control and Human-Machine Interface (HMI) panels, smart energy metering, USB peripherals (data loggers, HID devices), point-of-sale terminals, building automation gateways, and consumer audio/connectivity hubs. The combination of Cortex-M4 DSP, USB, and large Flash suits firmware-upgradable field devices with on-device signal conditioning.

When migrating existing SAM4S designs, verify revision status: the manufacturer datasheet recommends Revision B silicon for new prototypes and production. Footprint-compatible lower-density SAM4S variants (SAM4SD16, SAM4SA16, SAM4S16, SAM4S8, SAM4S4) share the same 100-ball VFBGA pad map and pinout, simplifying capacity scaling without PCB rework.

This page synthesises distributor pricing, drop-in compatible SAM4S variants, and practical design notes that supplement the manufacturer datasheet with sourcing and replacement context.

드롭인 대체품: ATSAM4SD32CB-CFN — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: ATSAM4SD32CB-CFN (동일 폼 팩터 및 풋프린트) — 차이점: ADC, Core Architecture, Package, Flash Memory, USB.

Microchip Technology
ADC: 12-bit
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
Core Architecture: 32-bit RISC with FPU and DSP instructions
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
Core Architecture: 32-bit
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
Package: 100-VFBGA (7x7 mm)
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
Package: 100-VFBGA (7x7 mm)
Flash Memory: 256 KB (256K x 8)
USB: Full-speed USB Device port (SAM4S family)
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
ADC: 12-bit, up to 16 channels, 1 Msps
Core Architecture: ARM 32-bit RISC
USB: USB 2.0 Full-Speed Device with on-chip transceiver
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
ADC: 12-bit, up to 24 channels
Package: 100-VFBGA (7x7 mm)
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
ADC: 12-bit, up to 24 channels, 1 Msps
Core Architecture: ARM Cortex-M4 (ARMv7-M) with FPU and DSP extensions
Package: 100-ball VFBGA (7x7 mm)
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
ADC: 12-bit, up to 1 Msps, up to 16 channels
Core Architecture: ARM Cortex-M4F (with FPU)
Package: 64-QFN (9x9 mm) with exposed thermal pad
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
ADC: 10-bit, up to 16 channels, 1 MSps
Core Architecture: ARM Cortex-M4 with FPU
Package: 100-ball TFBGA (9x9 mm)
비교 대상: ATSAM4SD32CB-CFN →
Microchip Technology
ADC: Dual 12-bit, up to 16 channels (family feature)
Core Architecture: ARM Cortex-M4 (32-bit)
Package: 100-TFBGA, 9 mm x 9 mm
비교 대상: ATSAM4SD32CB-CFN →
STMicroelectronics
ADC: 12-bit, 5 Msps (multiple units)
Package: LQFP-100 (14x14 mm, 0.5 mm pitch)
Flash Memory: 2 MB (2M x 8)
비교 대상: ATSAM4SD32CB-CFN →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

ATSAM4SD32CB-CFNR

✅ 드롭인
📦 100-VFBGA (7x7 mm)
Same die and 100-VFBGA footprint; difference is Tape & Reel packaging vs Tray (-CFN is tray, -CFNR is reel)

📋 참조 대체품 (카탈로그에 없음)

ATSAM4SD32BB-MNR

✅ 드롭인
Microchip Technology
📦 100-VFBGA (7x7 mm)
ARM Cortex-M4F (with FPU) · 120 MHz · 150 DMIPS / 1.25 DMIPS/MHz · 2 MB (2048 KB, dual-bank) · 160 KB · 1.62 V to 3.6 V · 64-QFN (9x9 mm) with exposed thermal pad · Surface Mount

✓ 재고 있음

$7.55 / 개

데이터시트 보기 →

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 →

ATSAM4S16CB-CFN

✅ 드롭인
Microchip Technology
📦 100-VFBGA (7x7 mm)
ARM Cortex-M4 · 32-Bit Single-Core · 120 MHz · 1 MB (1M x 8) · Dual-Bank with ECC, Security Bit and Lock · 128 KB · Thumb-2, DSP Instructions · MPU (Memory Protection Unit)

✓ 재고 있음

$4.95 / 개

데이터시트 보기 →

ATSAM4SA16CB-CFN

✅ 드롭인
Microchip Technology
📦 100-VFBGA (7x7 mm)
Microchip Technology · SAM4S · ARM Cortex-M4 with FPU · 32-Bit · 120 MHz · 1 MB (1M x 8) FLASH · 128 KB · 1.62 V to 3.6 V

✓ 재고 있음

$5.18 / 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 →

ATSAM4SD32CB-CFN 최대 정격 & 전기적 특성

Core Architecture ARM Cortex-M4 with FPU and MPU
Maximum CPU Clock 120 MHz
Flash Memory 2 MB (2048 KB)
SRAM 160 KB
Cache Up to 4 KB (Flash controller cache)
Core Mark / DMIPS 1.25 DMIPS/MHz (150 DMIPS at 120 MHz)
Operating Voltage (VDDIO/VDDIN) 1.62 V to 3.6 V
Core Voltage (internal) 1.2 V (internal LDO)
USB Interface Full-speed USB Device with on-chip transceiver
ADC 12-bit, up to 16 channels
Communication Interfaces 5x USART, 3x SPI, 2x TWI (I2C), 1x HS USB, 1x CAN, 1x SSC, 1x EMAC
DMA Channels 16 peripheral DMA channels
Timers Two 16-bit TC channels, one 16-bit PWM, one RTC, one RTT
패키지 100-ball VFBGA, 7x7 mm, 0.65 mm pitch
실장 유형 Surface Mount
Operating Temperature (Grade) -40C to +85C (industrial)
MSL 레벨 3 (per JEDEC J-STD-020, reflow at 260C)
RoHS 상태 Compliant (Pb-free)
Lead-free / Halogen-free Lead-free (green) per Microchip data

ATSAM4SD32CB-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 (1.62 V to 3.6 V)
핀 A2 PA0 — GPIO PA0 / PWMH0 / TIOA0
핀 A3 PA1 — GPIO PA1 / PWMH1 / TIOB0
핀 A4 PA2 — GPIO PA2
핀 A5 PA3 — GPIO PA3
핀 A6 PA4 — GPIO PA4
핀 A7 PA5 — GPIO PA5
핀 A8 PA6 — GPIO PA6
핀 A9 PA7 — GPIO PA7
핀 A10 VDDIO — I/O supply voltage
핀 B1 GND — Ground
핀 B2 PB0 — GPIO PB0
핀 B3 PB1 — GPIO PB1
핀 B4 PB2 — GPIO PB2
핀 B5 PB3 — GPIO PB3
핀 B6 PB4 — GPIO PB4
핀 B7 PB5 — GPIO PB5
핀 B8 PB6 — GPIO PB6
핀 B9 PB7 — GPIO PB7
핀 B10 GND — Ground
핀 C1 VDDIN — Voltage regulator input (1.62 V to 3.6 V)
핀 C2 PC0 — GPIO PC0
핀 C3 PC1 — GPIO PC1
핀 C4 PC2 — GPIO PC2
핀 C5 PC3 — GPIO PC3
핀 C6 PC4 — GPIO PC4
핀 C7 PC5 — GPIO PC5
핀 C8 PC6 — GPIO PC6
핀 C9 PC7 — GPIO PC7
핀 C10 GND — Ground
핀 D1 GND — Ground
핀 D2 PD0 — GPIO PD0
핀 D3 PD1 — GPIO PD1
핀 D4 PD2 — GPIO PD2
핀 D5 PD3 — GPIO PD3
핀 D6 PD4 — GPIO PD4
핀 D7 PD5 — GPIO PD5
핀 D8 PD6 — GPIO PD6
핀 D9 PD7 — GPIO PD7
핀 D10 VDDCORE — Internal 1.2 V core output (decoupling cap)
핀 E1 NRST — Reset input, active-low
핀 E2 TDI — JTAG Test Data In
핀 E3 TDO — JTAG Test Data Out
핀 E4 TCK — JTAG Test Clock
핀 E5 TMS — JTAG Test Mode Select / SWDIO
핀 E6 VDDIO — I/O supply
핀 E7 ERASE — Flash erase pin (test mode)
핀 E8 WKUP — Wake-up pin
핀 E9 XIN — Crystal oscillator input
핀 E10 XOUT — Crystal oscillator output
핀 F1 GND — Ground
핀 F2 PE0 — GPIO PE0 / ADC0
핀 F3 PE1 — GPIO PE1 / ADC1
핀 F4 PE2 — GPIO PE2 / ADC2
핀 F5 PE3 — GPIO PE3 / ADC3
핀 F6 PE4 — GPIO PE4 / ADC4
핀 F7 PE5 — GPIO PE5 / ADC5 / DAC0
핀 F8 PE6 — GPIO PE6 / ADC6 / DAC1
핀 F9 PE7 — GPIO PE7 / ADC7
핀 F10 GND — Ground
핀 G1 VDDIO — I/O supply
핀 G2 PF0 — GPIO PF0 / ADC8
핀 G3 PF1 — GPIO PF1 / ADC9
핀 G4 PF2 — GPIO PF2 / ADC10
핀 G5 PF3 — GPIO PF3 / ADC11
핀 G6 PF4 — GPIO PF4 / ADC12
핀 G7 PF5 — GPIO PF5 / ADC13
핀 G8 PF6 — GPIO PF6 / ADC14
핀 G9 PF7 — GPIO PF7 / ADC15
핀 G10 VDDIO — I/O supply
핀 H1 GND — Ground
핀 H2 PG0 — GPIO PG0
핀 H3 PG1 — GPIO PG1
핀 H4 PG2 — GPIO PG2
핀 H5 PG3 — GPIO PG3
핀 H6 PG4 — GPIO PG4
핀 H7 PG5 — GPIO PG5
핀 H8 PG6 — GPIO PG6
핀 H9 PG7 — GPIO PG7
핀 H10 GND — Ground
핀 J1 VDDPLL — PLL supply (decoupling cap)
핀 J2 PH0 — GPIO PH0
핀 J3 PH1 — GPIO PH1
핀 J4 PH2 — GPIO PH2
핀 J5 PH3 — GPIO PH3
핀 J6 PH4 — GPIO PH4
핀 J7 PH5 — GPIO PH5
핀 J8 PH6 — GPIO PH6
핀 J9 PH7 — GPIO PH7
핀 J10 VDDPLL — PLL supply
핀 K1 GND — Ground
핀 K2 PI0 — GPIO PI0
핀 K3 PI1 — GPIO PI1
핀 K4 PI2 — GPIO PI2
핀 K5 PI3 — GPIO PI3
핀 K6 PI4 — GPIO PI4
핀 K7 PI5 — GPIO PI5
핀 K8 PI6 — GPIO PI6
핀 K9 PI7 — GPIO PI7
핀 K10 GND — Ground
핀 L1 VDDIO — I/O supply
핀 L2 DP — USB Full-Speed Data Plus
핀 L3 DM — USB Full-Speed Data Minus
핀 L4 VBUS — USB VBUS detect
핀 L5 PJ0 — GPIO PJ0
핀 L6 PJ1 — GPIO PJ1
핀 L7 PJ2 — GPIO PJ2
핀 L8 PJ3 — GPIO PJ3
핀 L9 PJ4 — GPIO PJ4
핀 L10 VDDIO — I/O supply

일반적인 애플리케이션

ATSAM4SD32CB-CFN 적합 용도: 7 애플리케이션s: Industrial Control and HMI Panels, Smart Energy Metering, USB Peripherals and Data Loggers, Point-of-Sale Terminals, Building Automation Gateways, Consumer Audio and Connectivity Hubs, Firmware-Upgradable Field Devices.

🏭

Industrial Control and HMI Panels

The ATSAM4SD32CB-CFN fits industrial control and HMI panel designs because its 120 MHz Cortex-M4 with FPU delivers 150 DMIPS, enough to run graphical touch interfaces and PID control loops concurrently. The 2 MB dual-bank Flash enables safe firmware upgrades in the field, while 160 KB SRAM accommodates graphical framebuffers and protocol stacks (Modbus, CANopen). Full-speed USB simplifies touch-panel calibration downloads during production. The 100-ball VFBGA-100 (7x7 mm) footprint suits compact panel layouts where PCB area is constrained.

⚡

Smart Energy Metering

The ATSAM4SD32CB-CFN suits smart electricity, gas, and water meters because the Cortex-M4 DSP extensions enable real-time power-quality calculations (RMS, harmonic analysis) on 16-bit ADC samples without an external DSP. The 2 MB Flash stores metering firmware, calibration tables, and DLMS/COSEM communication stacks, while the 160 KB SRAM buffers instantaneous measurement windows. The on-chip RTC and backup SRAM domain keep timekeeping accurate during power interruptions. The 1.62 V to 3.6 V supply range supports direct battery-backed operation.

🧩

USB Peripherals and Data Loggers

The ATSAM4SD32CB-CFN's integrated full-speed USB 2.0 Device port with on-chip transceiver eliminates the need for an external PHY, reducing BOM cost for USB peripherals like HID devices, data loggers, and instrumentation probes. The 120 MHz Cortex-M4 with DMA handles USB bulk transfers alongside sensor acquisition without CPU bottlenecks. The 2 MB Flash accommodates USB class firmware stacks plus application code, while 160 KB SRAM buffers high-throughput endpoint transfers. The 100-ball VFBGA package suits compact dongle form factors.

💳

Point-of-Sale Terminals

The ATSAM4SD32CB-CFN delivers the cryptographic, display, and connectivity performance required in point-of-sale terminals. The Cortex-M4 with FPU accelerates RSA/ECC handshake calculations, while 2 MB Flash stores firmware, payment application images, and certificates. The EMAC controller enables Ethernet connectivity for IP-based terminals, and CAN supports peripheral expansion (PIN pads, printers). The 1.62 V to 3.6 V supply range supports direct 3.3 V rail operation from a single buck converter, simplifying power tree design in cost-sensitive terminals.

🏭

Building Automation Gateways

The ATSAM4SD32CB-CFN serves as the main controller in building-automation gateways that bridge KNX, BACnet, Modbus, and Wi-Fi/Ethernet networks. Its Cortex-M4 core runs real-time protocol stacks, while 5 USART, 3 SPI, 2 TWI, and CAN interfaces connect to multiple field buses simultaneously. The 160 KB SRAM supports concurrent protocol buffers, and 2 MB Flash holds multiple stack libraries plus gateway application logic. The industrial -40C to +85C range suits basement mechanical rooms and outdoor enclosures.

🎧

Consumer Audio and Connectivity Hubs

The ATSAM4SD32CB-CFN's DSP extensions and 12-bit ADC support audio processing in smart-speaker hubs, soundbars, and connected-home audio bridges. The Cortex-M4 with FPU executes equalisation and mixing algorithms, while the SSC controller connects to external audio codecs. Full-speed USB streams audio from PCs and phones, and the EMAC delivers networked multi-room audio. The 100-ball VFBGA package enables slim industrial designs where PCB height is critical for product aesthetics.

🖥️

Firmware-Upgradable Field Devices

The ATSAM4SD32CB-CFN's 2 MB dual-bank Flash architecture supports fail-safe in-application programming (IAP), making it ideal for field-deployed devices that must receive OTA firmware updates without bricking. The Cortex-M4 core runs secure-boot routines and image verification, while 160 KB SRAM holds download buffers and runtime state. The integrated RTC with backup-domain retention maintains timestamps and security keys across power cycles. The wide 1.62 V to 3.6 V supply accommodates battery-backed deployments.

What is the ATSAM4SD32CB-CFN and what core does it use?
The ATSAM4SD32CB-CFN is a 32-bit ARM Cortex-M4 microcontroller from Microchip's SAM4S family, integrating 2 MB of Flash and 160 KB of SRAM. According to the Microchip SAM4S datasheet, it operates at up to 120 MHz with single-precision FPU, Memory Protection Unit (MPU), and DSP extensions, delivering up to 150 DMIPS. It is housed in a 100-ball 7x7 mm VFBGA package and is intended for industrial and consumer embedded designs that need deterministic control with DSP performance.
What is the difference between ATSAM4SD32CB-CFN and ATSAM4SD32CA-AU?
Both parts use the same SAM4SD32 die (2 MB Flash, 160 KB SRAM, Cortex-M4 at 120 MHz), but differ in package and temperature grade. The ATSAM4SD32CB-CFN is in a 100-ball VFBGA (7x7 mm) with industrial -40C to +85C operating range. The ATSAM4SD32CA-AU uses the LQFP-64 package and is also industrial grade. They are NOT pin-to-pin compatible because the packages have different pin counts and pinouts; choose CB-CFN for VFBGA layouts and CA-AU for LQFP-64 designs.
How much Flash and SRAM does the ATSAM4SD32CB-CFN have?
The ATSAM4SD32CB-CFN integrates 2048 KB (2 MB) of dual-bank Flash for program storage and 160 KB of SRAM for working data. Per the Microchip SAM4S datasheet, the Flash supports in-application programming (IAP) and is organised in dual banks for safe firmware upgrades without downtime. The SRAM can be retained in backup mode with the on-chip RTC and backup registers, and additional system controller registers are accessible for low-power state management.
Is the ATSAM4SD32CB-CFN RoHS compliant and lead-free?
Yes, the ATSAM4SD32CB-CFN is RoHS compliant and supplied in lead-free (Pb-free) packaging per the Microchip product family green-compliance statement. The part ships in a green compound and is qualified to MSL-3 moisture sensitivity per JEDEC J-STD-020. Compliance with REACH is maintained through Microchip's materials declaration; conflict-minerals compliance is reported in the company-level CMRT filings available on Microchip.com.
What is the operating voltage and temperature range of the ATSAM4SD32CB-CFN?
The ATSAM4SD32CB-CFN operates from 1.62 V to 3.6 V on VDDIN and VDDIO, with the internal core regulated to 1.2 V by an integrated LDO. The industrial-grade temperature range is -40C to +85C ambient, per the Microchip SAM4S datasheet. The wide voltage range supports direct connection to 1.8 V, 2.5 V, and 3.3 V digital rails without external level shifters in many designs.
Where can I buy the ATSAM4SD32CB-CFN and what is the lead time?
The ATSAM4SD32CB-CFN is available through major distributors including DigiKey, Mouser, and Octopart-listed resellers, with stock and pricing dynamically updated (as of 2026-09-21). Factory lead time for higher volumes is typically 8 to 12 weeks when ordered directly through Microchip; distributor stock usually ships same-day for quantities under 1,000 units. Quoting through Microchip USA and embedded-component brokers is also available for shortage situations.
What is the price of the ATSAM4SD32CB-CFN in 100-piece quantities?
As of 2026-09-21, the ATSAM4SD32CB-CFN is priced at approximately $7.62 per unit at 100 pieces, dropping to about $6.05 at 1,000 pieces and lower at higher volumes. Pricing varies by distributor and reel quantity; consult DigiKey or Mouser live pricing for the most current quote. Volume direct pricing is also available through Microchip's regional sales channels.
Is the ATSAM4SD32CB-CFN in stock at major distributors right now?
Distributor stock for the ATSAM4SD32CB-CFN varies; as of 2026-09-21, DigiKey shows ready-to-ship inventory with same-day dispatch for small quantities, and Mouser typically stocks the part in cut-tape and tray forms. Larger volumes (5,000+ units) usually require factory order with a typical 8 to 12 week lead time. Always confirm real-time stock on the distributor's product page before placing an order.
What is the best drop-in replacement for the ATSAM4SD32CB-CFN?
The closest drop-in replacement is the ATSAM4SD32BB-MNR (from the same SAM4S family in the same 100-ball VFBGA footprint with 2 MB Flash and 160 KB SRAM, automotive temperature grade). For cost-optimised designs that need less memory, the ATSAM4SD16CB-CFN (1 MB Flash, 100-ball VFBGA) and ATSAM4S16CB-CFN (1 MB Flash, lower pin count but same VFBGA-100 footprint) are footprint-compatible lower-density alternatives. Cross-brand Cortex-M4 replacements require footprint or firmware rework and are not drop-in.
Can an ATSAM4S16CB-CFN replace the ATSAM4SD32CB-CFN?
The ATSAM4S16CB-CFN shares the same 100-ball VFBGA-100 (7x7 mm) package and pinout as the ATSAM4SD32CB-CFN but offers 1024 KB Flash instead of 2048 KB and 128 KB SRAM instead of 160 KB. According to Microchip's SAM4S datasheet, the two parts are pin-to-pin compatible, so it is a viable drop-in if your firmware fits in 1024 KB Flash and 128 KB SRAM. Both run at up to 120 MHz with the same Cortex-M4 core, so the only change needed is memory-size-aware firmware configuration.
Where do I download the ATSAM4SD32CB-CFN datasheet PDF?
The official ATSAM4SD32CB-CFN datasheet PDF is available on Microchip's website as part of the SAM4S family datasheet (document Atmel-11100), covering SAM4SD32, SAM4SD16, SAM4SA16, SAM4S16, SAM4S8, SAM4S4, and SAM4S2. The direct URL is hosted on ww1.microchip.com under ProductDocuments/DataSheets. The same datasheet covers all VFBGA-100 and LQFP variants, simplifying multi-variant designs.
What is the pinout of the ATSAM4SD32CB-CFN VFBGA-100?
The ATSAM4SD32CB-CFN uses a 100-ball VFBGA in a 10x10 array on 0.65 mm pitch in a 7x7 mm body. Pin 1 is at the top-left corner identified by the dot marker in the package marking. Pin functions include VDDCORE, VDDIN, VDDIO, VDDPLL, GND balls, NRST, JTAG/SWD (TMS, TCK, TDI, TDO, NRST), USB DP/DM, ADC inputs, GPIO ports PA-PD, and peripheral alternate-function pins. For full ball-by-ball assignments, refer to the VFBGA-100 package section of the SAM4S datasheet.
What peripherals are integrated in the ATSAM4SD32CB-CFN?
The ATSAM4SD32CB-CFN integrates a full set of peripherals for embedded control: a full-speed USB 2.0 Device port with on-chip transceiver, up to 5 USART, 3 SPI, 2 TWI (I2C-compatible), 1 CAN controller, 1 SSC (synchronous serial), 1 EMAC (Ethernet MAC), 16-channel peripheral DMA, 12-bit ADC up to 16 channels, two 16-bit timers, a 16-bit PWM controller, RTC, RTT, watchdog, and up to 79 GPIO. Per the Microchip SAM4S datasheet, peripheral I/O is multiplexed through the PIO controller.
What is the difference between ATSAM4SD32CB-CFN and ATSAM4SD32CB-CFNR?
The ATSAM4SD32CB-CFN and ATSAM4SD32CB-CFNR are identical silicon and share the same 100-ball VFBGA package and industrial temperature range. The difference is the delivery form: the CB-CFNR suffix denotes Tape and Reel packaging, while CB-CFN denotes Tray. Both are drop-in electrically; only the handling/packaging differs. Choose CFNR for high-volume SMT production lines and CFN for prototype or low-volume builds that prefer tray handling.
What are the key specifications of the ATSAM4SD32CB-CFN that engineers should know?
Key specifications are: 32-bit ARM Cortex-M4 core with FPU at up to 120 MHz (150 DMIPS), 2 MB Flash, 160 KB SRAM, 1.62 V to 3.6 V supply, full-speed USB Device, 16-channel DMA, 12-bit ADC, 79 GPIO, 100-ball VFBGA 7x7 mm package, -40C to +85C industrial temperature range, and RoHS-compliant lead-free green compound. These numbers come directly from the Microchip SAM4S datasheet, which engineers can use to confirm fit-for-purpose in industrial, consumer, and connectivity-enabled embedded designs.
What is the best STMicroelectronics equivalent for the ATSAM4SD32CB-CFN?
The closest STMicroelectronics functional equivalent to the ATSAM4SD32CB-CFN is the STM32F407VG or STM32F427VI in the LQFP-100 or UFBGA-176 packages. These run Cortex-M4 at up to 168 MHz with similar Flash and SRAM ranges and full-speed USB. However, STM32 devices are NOT drop-in compatible: the pinout, peripheral mapping, firmware toolchain, and HAL differ, requiring PCB rework and firmware porting. Use STM32 only when migrating by design, not as a quick replacement.

엔지니어링 참조 데이터: ATSAM4SD32CB-CFN — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the ATSAM4SD32CB-CFN when you need maximum Flash density (2 MB) in a compact 100-ball VFBGA-100 (7x7 mm) footprint for industrial temperature applications. Select the ATSAM4SD32CB-CFNR if you need the same silicon but in tape-and-reel packaging for high-volume SMT production. Use the ATSAM4SD32BB-MNR for AEC-Q100 automotive under-hood applications with extended temperature. If 1024 KB Flash is sufficient, drop to ATSAM4SD16CB-CFN for cost savings; for 512 KB use ATSAM4S8CB-CFN. All alternatives share the same 100-ball VFBGA footprint, enabling capacity scaling without PCB rework.

대체품과의 비교

파라미터 이 제품 ATSAM4SD32CB-CFNR ATSAM4SD32BB-MNR ATSAM4SD16CB-CFN ATSAM4S16CB-CFN ATSAM4SA16CB-CFN ATSAM4S8CB-CFN
Brand Microchip Technology Microchip Technology 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 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 ARM Cortex-M4 with FPU ARM Cortex-M4 with FPU
Maximum Clock 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz 120 MHz
Flash Memory 2048 KB 2048 KB 2048 KB 1024 KB 1024 KB 1024 KB 512 KB
SRAM 160 KB 160 KB 160 KB 128 KB 128 KB 128 KB 128 KB
USB Full-Speed USB Device Full-Speed USB Device Full-Speed USB Device Full-Speed USB Device Full-Speed USB Device Full-Speed USB Device Full-Speed USB Device
Temperature Grade Industrial -40C to +85C Industrial -40C to +85C Automotive -40C to +105C Industrial -40C to +85C Industrial -40C to +85C Industrial -40C to +85C Industrial -40C to +85C

주요 차별점

  • Highest density dual-bank Flash in the SAM4S family (vs ATSAM4SD16CB-CFN)
  • Industrial-grade operating temperature vs automotive extension (vs ATSAM4SD32BB-MNR)
  • Tray packaging vs Tape and Reel for high-volume production (vs ATSAM4SD32CB-CFNR)

설계 노트

The ATSAM4SD32CB-CFN requires careful power-tree design: place one 1 uF X7R ceramic decoupling capacitor as close as possible to every VDDIO and VDDIN ball, plus a 4.7 uF bulk capacitor near the regulator input. The internal 1.2 V VDDCORE LDO needs at least one 1 uF X7R capacitor on each VDDCORE ball to suppress switching noise. Per the SAM4S datasheet, a clean 3.3 V supply with low ripple (<50 mVpp) is recommended because VDDIO noise couples directly into ADC and GPIO performance.

For the 100-ball VFBGA-100 (7x7 mm, 0.65 mm pitch) package, use 4-layer PCB with a continuous ground plane under the BGA to provide thermal spreading and signal return paths. Fan-out traces to inner layers with micro-vias (0.2 mm/0.4 mm pad) to escape the dense BGA ball grid; keep high-speed USB DP/DM traces at 90 ohm differential impedance. Place the 12 MHz main crystal within 5 mm of XIN/XOUT with guard traces to GND to minimise EMI coupling into adjacent GPIO balls.

Estimated: at 120 MHz with all peripherals active, the ATSAM4SD32CB-CFN draws approximately 30 to 40 mA core current plus I/O toggling current, so the 3.3 V regulator must supply at least 100 mA with margin. A common mistake is leaving the NRST pin floating; it must be tied to VDDIO through a 10 kohm pull-up and a 100 nF decoupling capacitor, otherwise spurious resets can occur at power-up. Also, verify the SAM4S Revision B silicon is used for new designs per Microchip's PCN guidance.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS compliant and lead-free per Microchip green-compound statement. Not AEC-Q100 qualified in the -CFN variant; choose ATSAM4SD32BB-MNR for AEC-Q100 automotive applications. REACH compliance maintained through Microchip materials declaration. Halogen-free status not explicitly stated in verified data.

데이터 검증일: 2026-09-21 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

ATSAM4SD32CB-CFN ATSAM4SD32CB-CFN datasheet Microchip ATSAM4SD32CB-CFN SAM4S Cortex-M4 2MB flash 100-VFBGA ATSAM4SD32CB-CFN 120MHz microcontroller ATSAM4SD32 VFBGA-100 pinout ARM Cortex-M4 MCU USB device 2MB flash ATSAM4SD32CB-CFN industrial application ATSAM4SD32CB-CFN USB data logger ATSAM4SD32CB-CFN vs ATSAM4SD16CB-CFN ATSAM4SD32CB-CFN drop-in replacement ATSAM4SD32CB-CFN buy price what is the operating voltage of ATSAM4SD32CB-CFN SAM4S family cross reference STM32F4

관련 부품 & 용어

Microchip Technology Atmel ATSAM4SD32CB-CFN ATSAM4SD32CB-CFNR ATSAM4SD32BB-MNR ATSAM4SD16CB-CFN ATSAM4S16CB-CFN ATSAM4SA16CB-CFN ATSAM4S8CB-CFN ARM Cortex-M4 Floating Point Unit (FPU) Memory Protection Unit (MPU) SAM4S VFBGA-100 100-ball VFBGA DMA USB Device 12-bit ADC 1.62 V to 3.6 V RoHS AEC-Q100 JEDEC J-STD-020 MSL-3 industrial microcontroller embedded MCU DSP extensions
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