PIC24FJ64GA202-E/SO - 16-bit 32MHz 64KB Flash MCU | Microchip
MPN: PIC24FJ64GA202-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.41 | $1,205.00 |
| 1,000 | $2.1 | $2,100.00 |
PIC24FJ64GA202-E/SO Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory (Flash), data memory (RAM), peripherals, and I/O. The PIC24F family is a 16-bit modified Harvard architecture MCU line from Microchip that targets low-power and cost-sensitive embedded designs, sitting in the broader taxonomy: PIC24F -> 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'GA2' sub-family specifically adds an integrated crypto engine for secure applications and Core Independent Peripherals (CIPs) for offloading CPU tasks.
Key features include eXtreme Low Power (XLP) operation with multiple sleep modes and sub-microamp standby currents, an integrated crypto module, 21 GPIO pins, multiple timers, a 10/12-bit ADC, and standard serial interfaces (UART, SPI, I2C). The 64 KB Flash supports self-programming, and 8 KB RAM is sufficient for typical sensor-fusion and protocol-stack workloads. The device is engineered for low-power embedded and IoT designs.
The architecture combines a 16-bit modified-Harvard core with a hardware crypto accelerator (AES) and CIPs that handle I/O events without wake-up, enabling deterministic low-power behaviour. Core Independent Peripherals such as Configurable Logic Cells and DMA-equivalent peripheral engines let developers build responsive event-driven designs without CPU intervention.
Typical applications include IoT sensor nodes, secure connected devices, battery-powered wearables, low-power industrial sensors, consumer electronics with secure firmware, and metering devices. The integrated crypto engine simplifies secure boot, secure firmware update, and authenticated communication. For higher pin count or more memory, the related PIC24FJ128GA202 or PIC24FJ64GA306 families extend within the same architecture. This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not found in the standalone datasheet.
Drop-in alternatives for PIC24FJ64GA202-E/SO — 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 PIC24FJ64GA202-E/SO (same form factor and footprint) — differing in Package, Operating Temperature, Program Memory (Flash), ADC, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ128GA202-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.74 / Unit
View Datasheet →PIC24FJ64GA002-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.78 / Unit
View Datasheet →PIC24FJ64GA002-E/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.81 / Unit
View Datasheet →PIC24FJ64GA002-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.51 / Unit
View Datasheet →PIC24FJ128GA202-E/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.6 / Unit
View Datasheet →DSPIC33FJ64GP802-I/SO
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →PIC24FJ64GA202-E/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Family | PIC® XLP™ 24F |
| Sub-family | GA2 (with crypto engine) |
| Maximum CPU Speed | 32 MHz |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM | 8 KB |
| I/O Pins | 21 |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (Extended, '-E' suffix) |
| Package | 28-pin SOIC (0.295 inch / 7.50 mm width) |
| Mounting Type | Surface Mount |
| Crypto Engine | Integrated (AES) |
| Low Power Mode | eXtreme Low Power (XLP) |
| RoHS Status | Compliant |
PIC24FJ64GA202-E/SO Pin Configuration
| Pin 1 | RA0 — Port A bit 0 / analog input |
| Pin 2 | RA1 — Port A bit 1 / analog input |
| Pin 3 | RA2 — Port A bit 2 / analog input / reference |
| Pin 4 | RA3 — Port A bit 3 / analog input |
| Pin 5 | RA4 — Port A bit 4 |
| Pin 6 | RA5 — Port A bit 5 |
| Pin 7 | RA6 — Port A bit 6 / oscillator |
| Pin 8 | RA7 — Port A bit 7 / oscillator |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply (2.0-3.6V) |
| Pin 11 | RB0 — Port B bit 0 |
| Pin 12 | RB1 — Port B bit 1 |
| Pin 13 | RB2 — Port B bit 2 |
| Pin 14 | RB3 — Port B bit 3 |
| Pin 15 | RB4 — Port B bit 4 |
| Pin 16 | RB5 — Port B bit 5 |
| Pin 17 | RB6 — Port B bit 6 / ICSP programming clock |
| Pin 18 | RB7 — Port B bit 7 / ICSP programming data |
| Pin 19 | VSS — Ground reference (second) |
| Pin 20 | VDD — Positive supply (second) |
| Pin 21 | RC0 — Port C bit 0 |
| Pin 22 | RC1 — Port C bit 1 |
| Pin 23 | RC2 — Port C bit 2 |
| Pin 24 | RC3 — Port C bit 3 |
| Pin 25 | RC4 — Port C bit 4 |
| Pin 26 | RC5 — Port C bit 5 |
| Pin 27 | RC6 — Port C bit 6 |
| Pin 28 | RC7 — Port C bit 7 |
Typical Applications
PIC24FJ64GA202-E/SO is suitable for 6 applications: Low-Power IoT Sensor Nodes, Secure Connected Devices, Battery-Powered Wearables, Industrial Sensor Monitoring, Consumer Electronics with Secure Firmware, Smart Metering and Energy Monitoring.
Low-Power IoT Sensor Nodes
The PIC24FJ64GA202-E/SO is purpose-built for battery-powered IoT sensor nodes. Its eXtreme Low Power (XLP) technology provides sub-microamp sleep currents and multiple idle/sleep modes that let the MCU spend the vast majority of its time in deep sleep, waking only for periodic sensor reads. The 64 KB Flash easily fits typical BLE/Zigbee protocol stacks (when paired with an external radio), and the integrated 16-bit ADC with hardware averaging handles temperature, humidity, and analog sensor sampling. Unlike 32-bit Cortex-M0+ alternatives, this PIC24F offers deterministic interrupt latency via its Core Independent Peripherals (CIPs) - critical for time-synchronized sensor sampling. The extended -40C to +125C temperature range supports outdoor and industrial deployments. 8 KB RAM is sufficient for buffering packet bursts and short sensor-fusion pipelines before transmission. Designed-in for 3.3V coin-cell or two-AA battery rails.
Recommended
Secure Connected Devices
The integrated hardware crypto (AES) engine on the PIC24FJ64GA202-E/SO makes it a strong fit for secure connected devices requiring encrypted communication, secure boot, or authenticated firmware updates. By offloading AES to dedicated hardware, the CPU retains MIPS for application code while consuming less power than software-based crypto. The 64 KB Flash accommodates typical secure-bootloaders plus application code, and 8 KB RAM supports TLS/DTLS handshake buffers for lightweight protocols. Unlike parts without hardware crypto, this MCU enables FIPS-style key handling without exposing plaintext to RAM dumps. The 28-SOIC package is well-suited for compact IoT gateways, smart locks, and connected sensor hubs. Pair with Microchip's ATECC608B secure element for asymmetric crypto and a TCP/IP stack such as MPLAB Harmony for full IoT connectivity.
Recommended
Battery-Powered Wearables
Wearables demand both low power and compact SMD packages - the PIC24FJ64GA202-E/SO meets both. Its XLP technology delivers nanoWatt-class sleep currents suitable for wearables that spend 99% of their time in standby. The 28-SOIC package is small enough for wrist-worn form factors while still being hand-solderable for prototype builds. The 16-bit ADC and integrated comparators handle photoplethysmography (PPG) and bio-impedance sensor front-ends, and the 21 GPIO pins allow direct drive of low-power OLED displays, haptics, and I2C peripherals (heart-rate sensors, accelerometers). Unlike 8-bit PIC16 alternatives, the 16-bit PIC24F core delivers 16 MIPS at 32 MHz, enabling real-time sensor-fusion math. Hardware AES supports authenticated pairing with host phones, addressing modern wearable security expectations.
Recommended
Industrial Sensor Monitoring
The -40C to +125C extended temperature range on the PIC24FJ64GA202-E/SO makes it ideal for industrial sensor monitoring in factories, HVAC systems, and process-control installations. The integrated 16-bit ADC (with hardware oversampling to 16-bit effective resolution) provides accurate readings from thermocouples, RTDs, 4-20 mA loops, and bridge pressure sensors. Core Independent Peripherals (CIPs) enable deterministic timing of sensor scans independent of CPU activity, reducing jitter in time-critical control loops. 64 KB Flash supports Modbus RTU, IO-Link, or proprietary industrial protocols, and the integrated crypto engine secures communications against industrial espionage. RS-485 transceivers such as Microchip's ISL3179 pair naturally with this MCU for factory-floor networking. The 28-SOIC package is rugged and industry-standard.
Recommended
Consumer Electronics with Secure Firmware
Consumer electronics increasingly demand signed/encrypted firmware to prevent cloning and counterfeiting. The PIC24FJ64GA202-E/SO's integrated hardware AES enables secure boot and secure firmware updates in mainstream consumer products without the BOM cost of an external secure element. The 64 KB Flash holds typical consumer firmware (UI, BLE stack, sensor drivers), and 8 KB RAM supports HCI buffers and display framebuffers for small LCDs. The 16-bit PIC24F core outperforms 8-bit alternatives in driving graphical user interfaces and handling multi-protocol communications. The 28-SOIC package is cost-effective for high-volume consumer builds, and Microchip's MPLAB X IDE / Harmony 3 framework accelerates development. Hardware crypto also supports DRM-style authentication for accessories and consumables.
Recommended
Smart Metering and Energy Monitoring
Smart electricity, gas, and water meters require low power, long-term reliability, and secure communications - all delivered by the PIC24FJ64GA202-E/SO. XLP technology minimizes sleep current to extend battery life in battery-backed metering deployments to 10+ years. The hardware AES engine secures AMI (Advanced Metering Infrastructure) communication against tampering, and the 16-bit ADC accurately measures analog front-ends from current transformers, Rogowski coils, or pulse-output gas/water meters. 64 KB Flash fits Wireless M-Bus, OMS, or proprietary metering stacks, and the extended -40C to +125C temperature range handles outdoor meter enclosures. Core Independent Peripherals enable autonomous metering of pulse counters without CPU wakeup. The 28-SOIC package suits both retrofit and new meter designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GA202-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ128GA202-I/SS | PIC24FJ64GA002-I/SO | PIC24FJ64GA002-E/SO | dsPIC33FJ64GP802-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SSOP | 28-SOIC | 28-SOIC | 28-SOIC |
| Flash Memory | 64 KB | 128 KB | 64 KB | 64 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 40 MHz (dsPIC33 DSP) |
| Hardware Crypto (AES) | Yes (AES engine) | Yes (AES engine) | No | No | No |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Core Independent Peripherals (CIPs) | Yes (enhanced) | Yes (enhanced) | Limited | Limited | Limited |
| XLP (eXtreme Low Power) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated hardware AES crypto engine without BOM cost penalty (vs PIC24FJ64GA002-I/SO)
- Extended -40C to +125C temperature range for harsh environments (vs PIC24FJ128GA202-I/SS)
- Core Independent Peripherals (CIPs) for deterministic, CPU-free I/O (vs dsPIC33FJ64GP802-I/SO)
Design Notes
The PIC24FJ64GA202-E/SO operates from 2.0V to 3.6V. For battery-powered designs, place a 10 uF bulk + 0.1 uF ceramic decoupling cap pair within 5 mm of each VDD pin (pins 10 and 20). Use a low-Iq LDO such as Microchip MCP1700 for sleep-current-critical applications; high-Iq regulators will erase the XLP sleep-current advantage (typically <100 nA). Implement peripheral clock gating and use the deep-sleep mode (DSHEN) to achieve nanoWatt standby. Tie any unused I/O pins to defined logic levels (VSS or VDD) to minimize leakage.
Route the ICSP clock (RB6/PGEC) and ICSP data (RB7/PGED) traces together with minimal length and avoid routing them near switching power or RF traces - they are sensitive to noise during programming. Place a 4.7 kohm pull-up on MCLR if not driven by an external supervisor. Use a continuous ground plane under the SOIC-28 footprint; the SOIC-28 has no exposed pad, so thermal dissipation is primarily through the leads. For high-I/O-toggle designs, route RB6/RB7 away from high-edge-rate signals to avoid EMI coupling into the programming interface.
Common pitfalls with the PIC24FJ64GA202-E/SO: (1) Forgetting to enable the WDT in fail-safe designs and not locking the configuration bits against accidental erase; (2) Using the internal FRC at 32 MHz without tuning - the uncalibrated FRC drift can exceed 2% and break UART communications; (3) Assuming all RA/RB/RC pins are 5V tolerant - this part is 3.3V only and exceeding 3.6V on any pin will damage the device; (4) Not reserving RB6/RB7 for ICSP and disabling them in firmware without keeping a programming entry path; (5) Forgetting the configuration-bit setting for JTAG disabled on RB6/RB7, which can interfere with ICSP.
Compliance Information
RoHS-compliant matte-tin finish per Microchip ordering info. Not AEC-Q100 qualified - for automotive, use AEC-Q100 grades of the PIC24F family. Lead-free and halogen-free per Microchip environmental policy.
