CC3220SF12ARGKR - SimpleLink Wi-Fi MCU, 1MB Flash, 256kB RAM | Texas Instruments
料号： CC3220SF12ARGKR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.2 | $9.20 |
| 10 | $8.55 | $85.50 |
| 100 | $7.62 | $762.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.3 | $6,300.00 |
CC3220SF12ARGKR 概述
A SimpleLink Wi-Fi wireless MCU is a single-chip solution that combines an industry-standard microcontroller core with a Wi-Fi network processor, offloading the complex 802.11 MAC/PHY stack so the host MCU can focus on application logic. The CC3220x family sits within TI's broader SimpleLink MCU platform, which also includes low-energy Bluetooth, Sub-1 GHz, and host MCUs that share a common SDK and toolchain. The network processor subsystem includes its own ARM Cortex-M3 dedicated to Wi-Fi, hardware crypto engines, and a TCP/IP stack, allowing the application Cortex-M4 to wake only when needed for ultra-low-power IoT operation.
Key features include integrated Wi-Fi security with hardware-accelerated WPA2 and WPA3, 27 GPIO pins, and a rich serial peripheral set including ADC, I2C, SPI, UART, and PCM interfaces. The wide supply range of 2.1V to 3.6V supports direct connection to a single Li-ion cell or 3.3V regulated rail. The CC3220SF12ARGKR is the SF (Secure Flash) variant with 1MB user Flash, building on the CC3220S's MCU-level file-system encryption, secure boot, and debug security, and the CC3220R's IoT networking security and device identity/keys.
Architecturally, the CC3220SF separates the Wi-Fi network processor from the user application MCU, allowing independent firmware updates for each subsystem. The integrated hardware crypto block accelerates AES, SHA, and TLS handshake operations, offloading the application MCU. This makes it well-suited for cloud-connected IoT nodes where TLS handshake latency and power budget are critical.
Typical applications include cloud-connected home automation gateways, industrial IoT sensor nodes reporting over MQTT, Wi-Fi-enabled medical telemetry devices, smart appliances with Over-The-Air update capability, and asset tracking beacons. The 1MB Flash supports richer application code than the CC3220S variant.
When designing with this device, carefully follow TI's layout guidelines for the RF section, paying particular attention to the 50-ohm antenna trace impedance and ground plane stitching. The CC3220SF includes a 4-wire JTAG debug interface; ensure the debugger reset line is correctly pulled during flash programming to avoid bricking.
This page synthesizes distributor pricing, drop-in CC3220x family alternatives, and practical design considerations not found in a quick scan of the manufacturer datasheet.
直接替换替代料： CC3220SF12ARGKR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
CC3220SF12ARGKT
✅ 直接替换📋 参考替代料（不在目录中）
CC3220S12ARGKR
✅ 直接替换📋 参考替代料（不在目录中）
CC3220R12ARGKR
✅ 直接替换📋 参考替代料（不在目录中）
CC3220SF-LARGKR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CC3220SF12ARGKR 最大额定值与电气特性
| Product Type | Wireless MCU (Wi-Fi SoC) |
| Core Architecture | 32-bit Arm Cortex-M4 (application MCU) + Cortex-M3 (network processor) |
| Flash Memory (User) | 1 MB |
| RAM | 256 kB |
| Wireless Standard | IEEE 802.11 b/g/n (2.4 GHz) |
| Transmit Power | 18 dBm |
| Receive Sensitivity | -96 dBm |
| Supply Voltage Range | 2.1 V to 3.6 V |
| Current - Receiving | 59 mA |
| Current - Transmitting | 223 mA |
| GPIO Count | 27 |
| Serial Interfaces | ADC, I2C, SPI, UART, PCM |
| 工作温度 | -40 C to +85 C |
| 封装 | VQFN-64 (RGK) with exposed pad |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| 无卤 | Compliant |
| MSL 等级 | 3 |
CC3220SF12ARGKR 引脚配置
| 引脚 1 | GND — Ground |
| 引脚 2 | RF_BG — 2.4 GHz RF antenna port (50 ohm) |
| 引脚 3 | GND — Ground |
| 引脚 4 | VDD_ANA1 — Analog 1.85V supply (internal LDO output, decouple) |
| 引脚 5 | GND — Ground |
| 引脚 6 | VDD_ANA2 — Analog 1.85V supply (internal LDO output, decouple) |
| 引脚 7 | GPIO10 — General purpose I/O / UART1_TX |
| 引脚 8 | GPIO11 — General purpose I/O / UART1_RX |
| 引脚 9 | GPIO12 — General purpose I/O / I2C_SCL |
| 引脚 10 | GPIO13 — General purpose I/O / I2C_SDA |
| 引脚 11 | GPIO14 — General purpose I/O / SPI_CLK |
| 引脚 12 | GPIO15 — General purpose I/O / SPI_MOSI |
| 引脚 13 | GPIO16 — General purpose I/O / SPI_MISO |
| 引脚 14 | GPIO17 — General purpose I/O / SPI_CS |
| 引脚 15 | VDD_BAT — Battery/supply input (2.1-3.6V) |
| 引脚 16 | GND — Ground |
| 引脚 17 | GPIO22 — General purpose I/O / UART0_TX |
| 引脚 18 | GPIO23 — General purpose I/O / UART0_RX |
| 引脚 19 | GPIO24 — General purpose I/O |
| 引脚 20 | GPIO25 — General purpose I/O |
| 引脚 21 | GPIO26 — General purpose I/O |
| 引脚 22 | GPIO27 — General purpose I/O / ADC channel 0 |
| 引脚 23 | GPIO28 — General purpose I/O / ADC channel 1 |
| 引脚 24 | GPIO29 — General purpose I/O / ADC channel 2 |
| 引脚 25 | GPIO30 — General purpose I/O / ADC channel 3 |
| 引脚 26 | GPIO0 — General purpose I/O / JTAG_TCK |
| 引脚 27 | GPIO1 — General purpose I/O / JTAG_TMS |
| 引脚 28 | GPIO2 — General purpose I/O / JTAG_TDI |
| 引脚 29 | GPIO3 — General purpose I/O / JTAG_TDO |
| 引脚 30 | GPIO4 — General purpose I/O |
| 引脚 31 | GPIO5 — General purpose I/O |
| 引脚 32 | GPIO6 — General purpose I/O / PWM |
| 引脚 33 | GPIO7 — General purpose I/O / PWM |
| 引脚 34 | GPIO8 — General purpose I/O / UART2_TX |
| 引脚 35 | GPIO9 — General purpose I/O / UART2_RX |
| 引脚 36 | RESET — Active-low reset input |
| 引脚 37 | HIBERNATE — Active-low hibernate control |
| 引脚 38 | nRESET — Reset (active-low) |
| 引脚 39 | TCK — JTAG test clock |
| 引脚 40 | TMS — JTAG test mode select |
| 引脚 41 | TDI — JTAG test data in |
| 引脚 42 | TDO — JTAG test data out |
| 引脚 43 | GND — Ground |
| 引脚 44 | VDD_IO — Digital I/O supply (1.8V) |
| 引脚 45 | VDD_DIG — Digital core supply (1.15V, internal LDO output) |
| 引脚 46 | GND — Ground |
| 引脚 47 | GPIO18 — General purpose I/O / I2S_WS |
| 引脚 48 | GPIO19 — General purpose I/O / I2S_CLK |
| 引脚 49 | GPIO20 — General purpose I/O / I2S_FS |
| 引脚 50 | GPIO21 — General purpose I/O / I2S_DATA |
| 引脚 51 | GPIO31 — General purpose I/O / PCM_CLK |
| 引脚 52 | GPIO32 — General purpose I/O / PCM_SYNC |
| 引脚 53 | GPIO33 — General purpose I/O / PCM_IN |
| 引脚 54 | GPIO34 — General purpose I/O / PCM_OUT |
| 引脚 55 | GND — Ground |
| 引脚 56 | XIN — 40 MHz crystal input |
| 引脚 57 | XOUT — 40 MHz crystal output |
| 引脚 58 | GND — Ground |
| 引脚 59 | VDD_PA — Power amplifier supply |
| 引脚 60 | ANT — Antenna select / RF port |
| 引脚 61 | GND — Ground |
| 引脚 62 | NC — Not connected (per datasheet) |
| 引脚 63 | NC — Not connected (per datasheet) |
| 引脚 64 | EP — Exposed thermal pad - connect to ground |
典型应用
CC3220SF12ARGKR 适用于 6 应用s: Cloud-Connected Home Automation Gateway, Industrial IoT Sensor Node with MQTT, Wi-Fi-Enabled Medical Telemetry Device, Smart Appliance with Over-The-Air Update, Asset Tracking and Beacon Node, Wi-Fi-Connected Educational/Consumer Electronics.
Cloud-Connected Home Automation Gateway
The CC3220SF12ARGKR is an excellent fit for cloud-connected home automation gateways that bridge Wi-Fi to low-power IoT nodes. Its integrated 802.11 b/g/n radio with 18 dBm TX power and -96 dBm RX sensitivity supports reliable whole-home coverage, while the 1MB Flash stores gateway application logic, MQTT/TLS stacks, and OTA update logic. The hardware-accelerated WPA2/WPA3 encryption offloads TLS handshake from the application Cortex-M4, reducing cloud-connect latency. The 27 GPIO and ADC/I2C/SPI/UART set support direct sensor aggregation without an external MCU, lowering BOM cost.
推荐
Industrial IoT Sensor Node with MQTT
The CC3220SF12ARGKR suits industrial IoT sensor nodes that report over MQTT to cloud brokers. The 256kB RAM supports TLS connection buffers plus local data buffering, while the 1MB Flash accommodates the SimpleLink SDK, an MQTT client, and application sensor processing. The wide 2.1-3.6 V supply supports 3.6V industrial rails directly, and the -40 to +85 C operating range covers factory floor environments. The ADC and I2C peripherals connect directly to analog and digital sensors without external glue logic, simplifying PCB design.
推荐
Wi-Fi-Enabled Medical Telemetry Device
The CC3220SF12ARGKR is suitable for Wi-Fi-enabled medical telemetry devices such as remote patient monitors and connected health wearables. The integrated WPA2/WPA3 hardware crypto protects HIPAA-relevant data in transit, while the 1MB Flash stores application firmware for vital-signs processing. The Cortex-M4 with FPU handles on-device filtering and threshold detection before transmission, reducing cloud compute load. Low-power hibernate modes extend battery life in portable or wearable form factors, and the wide supply range accommodates Li-ion or coin-cell chemistries.
推荐
Smart Appliance with Over-The-Air Update
The CC3220SF12ARGKR enables smart appliances (washing machines, refrigerators, HVAC controls) with reliable OTA firmware updates. The CC3220SF variant specifically adds user-IP encryption and secure boot, protecting manufacturer firmware from cloning or tampering. The 1MB Flash stores dual application images for A/B OTA rollback, while the Wi-Fi network processor offloads 802.11 maintenance so the application MCU stays focused on appliance control logic. The 27 GPIO easily drive relays, sensors, and user interfaces in typical appliance designs.
推荐
Asset Tracking and Beacon Node
The CC3220SF12ARGKR supports Wi-Fi-based asset tracking and beacon nodes in warehouses or healthcare facilities. The integrated Wi-Fi allows triangulation against existing access points without dedicated infrastructure, while the Cortex-M4 application core runs location-firmware algorithms. The 1MB Flash stores lookup tables for BSSID-to-location mapping. Hibernate current in the microamp range extends battery life for years on coin-cell or Li-SOCl2 cells, and the 2.1V minimum supply supports depleted-battery graceful shutdown.
推荐
Wi-Fi-Connected Educational/Consumer Electronics
The CC3220SF12ARGKR serves as the main MCU in Wi-Fi-connected consumer products such as connected toys, smart speakers, and educational electronics kits. The SimpleLink SDK and TI Resource Explorer provide ready-to-use cloud-connect examples (AWS IoT, Azure, IBM Watson), accelerating time-to-market. The Cortex-M4 with FPU supports audio decoding or graphics rendering, while the integrated Wi-Fi removes the need for a separate network processor. The wide operating temperature and 1MB Flash comfortably host application logic plus Wi-Fi firmware stacks.
推荐
推荐产品汇总
工程参考数据： CC3220SF12ARGKR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | CC3220SF12ARGKT | CC3220S12ARGKR | CC3220R12ARGKR | CC3220SF-LARGKR |
|---|---|---|---|---|---|
| Package | VQFN-64 (RGK) | VQFN-64 (RGK) - same | VQFN-64 (RGK) - same | VQFN-64 (RGK) - same | VQFN-64 (RGK) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| On-die Flash | 1 MB | 1 MB | 0 (external serial Flash required) | 0 (external serial Flash required) | 1 MB (L-suffix variant) |
| RAM | 256 kB | 256 kB | 256 kB | 256 kB | 256 kB |
| Wi-Fi Standard | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n | 802.11 b/g/n |
| MCU-Level Security | Yes (file system encryption, secure boot) | Yes | Yes | No | Yes |
| TX Power | 18 dBm | 18 dBm | 18 dBm | 18 dBm | 18 dBm |
| GPIO Count | 27 | 27 | 27 | 27 | 27 |
| Unit Price (qty 1, USD) | 9.20 | Similar to ARGKR | Lower (no on-die Flash) | Lowest in family | Similar |
关键差异点
- On-die 1MB Flash vs external serial Flash （对比 CC3220S12ARGKR)
- Full security feature set vs IoT-only security （对比 CC3220R12ARGKR)
- Identical silicon, different reel packaging （对比 CC3220SF12ARGKT)
设计说明
Follow TI's CC3220 hardware design guide for the RF section: route the antenna trace as a 50-ohm controlled-impedance microstrip with continuous ground plane underneath. Place the 2.4 GHz antenna as far from the crystal and digital switching circuits as possible. Use ground stitching vias around the RF trace and around the RGK exposed pad to provide a low-impedance return path. Decoupling capacitors (100 nF and 10 uF) must be placed as close to each VDD pin as the layout allows.
Power supply design must handle peak TX currents of 223 mA without voltage droop. Use a low-impedance regulator (LDO or buck) capable of 300 mA peak. Place a 10 uF bulk capacitor plus 100 nF ceramic directly at the VDD_BAT pin. The internal LDOs that generate the 1.85V analog and 1.15V digital rails require 1 uF and 100 nF decoupling per the datasheet. Hibernate mode reduces quiescent current to microamp levels - use the HIBERNATE pin for power gating between active sessions.
Do not omit the external serial Flash footprint on the PCB if there is any chance of dropping down to a CC3220S or CC3220R variant during supply shortages - those require external Flash, while the SF variant does not. Ensure the JTAG debug header is brought out to test points for production programming; a missing JTAG reset pull-down can brick the device during flash operations. Always use TI UniFlash tool with the latest service pack; outdated service packs cause WPA3 and TLS handshake failures in production firmware.
合规信息
RoHS and halogen-free compliant per TI product page. Not AEC-Q100 qualified - for automotive designs use the CC3220SF-Q1 family variant.
