EFM32ZG222F4-QFP48 - 24MHz Cortex-M0+ MCU | Silicon Labs
MPN: EFM32ZG222F4-QFP48 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.72 | $4.72 |
| 10 | $4.21 | $42.10 |
| 100 | $3.64 | $364.00 |
| 500 | $3.18 | $1,590.00 |
| 1,000 | $2.79 | $2,790.00 |
EFM32ZG222F4-QFP48 Overview
A microcontroller is an integrated circuit that combines a processor core, memory, peripherals, and I/O in one device. In the device hierarchy, the EFM32ZG222F4-QFP48 is a microcontroller, or MCU, within the broader category of embedded semiconductors. Its ARM Cortex-M0+ core supports compact, deterministic control tasks, while the Zero Gecko low-energy platform makes it suitable for systems that spend much of their operating time in low-power states.
Key features include a maximum clock frequency of 24 MHz, 4 kB of Flash, 2 kB of RAM, and two 16-bit timers. The device also provides 37 digital I/O pins in its 48-lead package. Its low-power platform includes energy-saving modes and fast wake-up behavior, helping battery-operated products reduce the amount of time spent consuming power. The manufacturer documentation also identifies AES capability and an ADC in product-level descriptions.
The EFM32ZG222 family combines an ARM Cortex-M0+ processor with low-power system features and a peripheral set intended for embedded control. Its small 4 kB Flash capacity favors compact firmware rather than GUI-heavy or connectivity-intensive applications. The 48-pin TQFP package provides substantially more I/O than smaller 20-pin or 32-pin devices, making it useful when external sensors, switches, indicators, or interface circuits require dedicated pins.
Typical applications include low-power sensor nodes, connected accessories, compact industrial controllers, building-automation endpoints, portable measurement equipment, and consumer accessories. The combination of 24 MHz processing speed, 37 digital I/O pins, and low-energy modes supports periodic sensing, local control, and short communication transactions without requiring a higher-power MCU.
When designing around this device, engineers should verify the exact peripheral pin assignments and electrical limits in the EFM32ZG222 datasheet. Decoupling, programming access, clock configuration, and low-power state transitions must be handled according to the manufacturer reference design; the 4 kB Flash and 2 kB RAM limits also require firmware-size budgeting before feature commitments.
This product record combines manufacturer specifications, distributor availability, cross-reference evidence, and engineering-focused application guidance. It also distinguishes verified drop-in alternatives from options whose memory capacity or ordering code differs, helping designers make a replacement decision without relying on package similarity alone.
Drop-in alternatives for EFM32ZG222F4-QFP48 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EFM32ZG222F4-QFP48 (same form factor and footprint) — differing in Flash Memory, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EFM32ZG222F4-QFP48T
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32ZG222F8-QFP48
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →EFM32ZG222F32-QFP48
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32ZG222F4-B-QFP48
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32ZG222F4-QFP48 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M0+ microcontroller |
| Series | EFM32 Zero Gecko |
| Maximum CPU Frequency | 24 MHz |
| Flash Memory | 4 kB (4K x 8) |
| RAM | 2 kB |
| Digital I/O Pins | 37 pins |
| Timers | 2 x 16-bit timers |
| Processor Core | ARM Cortex-M0+ |
| Architecture | 32-bit RISC |
| Supply Voltage | 3 V |
| Package | 48-TQFP (7 x 7 mm) |
| Package Pin Pitch | 0.5 mm |
| Mounting Type | Surface mount |
| Leadframe Finish | Nickel-Palladium-Gold preplated |
| ADC | Present |
| AES | Present |
| Low-Power Modes | Energy-saving modes with fast wake-up |
| RoHS Status | Compliant |
| Bromine Content | Free of Bromine (Br) |
| Antimony Content | Free of Antimony (Sb) |
EFM32ZG222F4-QFP48 0.5 mm Pin Configuration Guide
Pin configuration for EFM32ZG222F4-QFP48 (0.5 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for EFM32ZG222F4-QFP48.
Refer to the datasheet for full pin configuration.
Typical Applications
EFM32ZG222F4-QFP48 is suitable for 6 applications: Battery-Powered Sensor Node, Building Automation Endpoint, Industrial Control Module, Portable Measurement Device, Smart Accessory, Compact Consumer Controller.
Battery-Powered Sensor Node
The EFM32ZG222F4-QFP48 fits a compact battery-powered sensor node because its 24 MHz Cortex-M0+ core can process periodic readings while the Zero Gecko platform supports energy-saving modes and fast wake-up behavior. Its 37 digital I/O pins allow connections to sensors, status indicators, and simple control switches without requiring a larger pin-count package. The 4 kB Flash and 2 kB RAM provide a constrained but workable environment for tightly written acquisition, filtering, and threshold logic. Before deployment, estimate the average current from wake frequency, sensor duty cycle, and radio activity, because the MCU specification alone does not determine battery life.
Recommended
Building Automation Endpoint
EFM32ZG222F4-QFP48 is suitable for a building-automation endpoint that must read environmental or occupancy inputs and control relays or indicators locally. The 37 digital I/O pins provide useful interface density in a 48-pin TQFP package, while the 24 MHz core can handle protocol housekeeping and control logic. Its low-power modes are valuable in equipment that remains connected to power but spends substantial time idle. Firmware must remain within 4 kB Flash and 2 kB RAM, so the design should reserve storage for stack growth, configuration data, and any update mechanism rather than treating all memory as application code.
Recommended
Industrial Control Module
The EFM32ZG222F4-QFP48 can serve as the local controller in a small industrial module where deterministic logic, status I/O, and low idle consumption matter more than large application storage. Its ARM Cortex-M0+ core operates up to 24 MHz, and two 16-bit timers provide useful foundations for periodic timing and input capture. The 48-TQFP package exposes 37 digital I/O pins, reducing the need for serial expanders in simple control boards. Engineers should treat the MCU’s 2 kB RAM as the limiting factor for diagnostics and buffering, and should validate EMC, isolation, and surge requirements at the complete-system level rather than inferring industrial compliance from the MCU package alone.
Recommended
Portable Measurement Device
EFM32ZG222F4-QFP48 is appropriate for a portable measurement instrument when the measurement algorithm, calibration data, and user interface are sufficiently compact. The 24 MHz ARM Cortex-M0+ processor can execute sensor acquisition and basic computation, while the ADC allows analog measurements to be connected without requiring a separate converter. Two 16-bit timers support periodic sampling, and the 37 digital I/O pins can handle switches, displays, and alarm outputs. The principal tradeoff is memory: 4 kB Flash and 2 kB RAM limit logging and complex UI code, so calibration tables may need external storage or a higher-memory EFM32 member.
Recommended
Smart Accessory
The EFM32ZG222F4-QFP48 fits a smart accessory that must interpret buttons, control indicators, and perform short low-energy operations while preserving the target’s small memory budget. The 37 digital I/O pins provide ample GPIO for simple human interfaces and peripheral control, and fast wake-up behavior supports responsive interaction without continuously running the processor at 24 MHz. AES capability can support suitable encrypted data-handling use cases, but protocol stack size and key-management requirements must be reviewed against the available 4 kB Flash. For accessories requiring larger images, richer connectivity, or more application code, EFM32ZG222F8-QFP48 or EFM32ZG222F32-QFP48 offers more Flash in the same family package.
Recommended
Compact Consumer Controller
EFM32ZG222F4-QFP48 can act as a compact consumer-product controller for simple appliances, accessories, or powered peripherals that need local logic and low standby consumption. Its 24 MHz Cortex-M0+ core provides more than enough throughput for deterministic state-machine control, and the 48-pin TQFP package offers 37 digital I/O pins for buttons, LEDs, relays, and display segments. Energy-saving modes are valuable for mains-powered products that spend time idle, although standby behavior must be coordinated with the power supply and any sensor load. The small memory footprint favors concise firmware and limits image storage, so feature creep should be evaluated against the 4 kB Flash ceiling before layout release.
Recommended
Recommended Products Summary
Engineering reference data for EFM32ZG222F4-QFP48 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EFM32ZG222F4-QFP48T | EFM32ZG222F8-QFP48 | EFM32ZG222F32-QFP48 | EFM32ZG222F4-B-QFP48 |
|---|---|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 48-TQFP (7 x 7 mm) | 48-TQFP (7 x 7 mm) - same | 48-TQFP (7 x 7 mm) - same | 48-TQFP (7 x 7 mm) - same | 48-TQFP (7 x 7 mm) - same |
| Maximum CPU Frequency | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Flash Memory | 4 kB | 4 kB | 8 kB | 32 kB | 4 kB |
| RAM | 2 kB | 2 kB | 2 kB | 4 kB | 2 kB |
| Processor Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ |
Key Differentiators
- Closest ordering-form alternative preserves the target memory configuration (vs EFM32ZG222F4-QFP48T)
- Target provides four times less Flash than the F8 family option (vs EFM32ZG222F8-QFP48)
- Target offers a compact memory budget for the smallest qualified family footprint (vs EFM32ZG222F32-QFP48)
Design Notes
Budget firmware and peripheral activity around the 4 kB Flash and 2 kB RAM limits before enabling communication stacks or logging. The Zero Gecko low-energy modes can reduce consumption only when the application spends meaningful time in a defined sleep state. Measure average current across wake, processing, and sleep intervals; do not infer battery life from the 24 MHz clock rating alone.
Follow the EFM32ZG222 datasheet reference layout for the 48-pin TQFP footprint, including a 0.5 mm pin pitch and a 7 by 7 mm body. Keep programming and debug access unobstructed, place decoupling capacitors close to the appropriate supply pins, and route sensitive analog inputs away from fast digital switching paths. The package lead geometry should be checked against the PCB fabrication capability before release.
Do not treat EFM32ZG222F8-QFP48 or EFM32ZG222F32-QFP48 as electrically identical replacements merely because they use the same 48-pin package. Their Flash capacities differ from the target’s 4 kB, and the F32 variant also changes available RAM to 4 kB. Use the F4 variant when exact memory equivalence is required, and review startup code, linker configuration, and firmware images after any substitution.
Route the 24 MHz clock and sensitive ADC-related signals on controlled PCB layers with short return paths and no unnecessary stubs. Although the interface speed is modest, long parallel routes, adjacent high-current outputs, and poorly positioned analog grounds can degrade measurement quality. Validate ADC accuracy with the production grounding and enclosure configuration because the MCU datasheet specifications do not represent the finished system.
Compliance Information
The EFM32ZG222 datasheet states that all EFM32 packages are RoHS compliant and free of bromine and antimony. Separate REACH, AEC-Q100, lead-free, conflict-minerals, and general halogen-free claims are not present in the verified data.
