PIC24EP64GP202-I/SP - 70 MIPS 64KB Flash 16-bit MCU | Microchip
料号： PIC24EP64GP202-I/SP ✓ 量产中PIC24EP64GP202-I/SP 概述
A 16-bit microcontroller (MCU) is a microprocessor core with a 16-bit data path, ALU, and register width that balances computational throughput against code density. The PIC24EP series uses a modified Harvard architecture with separate program and data buses plus DSP extensions, positioning it above 8-bit MCUs in the hierarchy (8-bit MCU -> 16-bit MCU -> 32-bit MCU) while remaining below dedicated DSP controllers. It is widely used for motor control, power conversion, sensor fusion, and real-time control loops where deterministic interrupt response and rich analog peripherals are required.
Key features of the PIC24EP64GP202 include 64 KB (22K x 24) Flash, 8 KB RAM, a 16-channel 12-bit ADC with up to 500 ksps conversion rate, three op-amps for signal conditioning, four comparators for fast threshold detection, four general-purpose 16-bit timers, and a Peripheral Trigger Generator that automates peripheral sequencing without CPU intervention. The device supports communication interfaces including UART, SPI, and I2C.
The architecture combines a 16-bit CPU with DSP instructions and a hardware multiplier for single-cycle MAC operations. The CTMU allows precise time measurement for capacitive touch and current sensing, while the PTG can orchestrate peripheral events to offload timing-critical tasks. This blend makes the PIC24EP64GP202 well suited for sensor interfacing and closed-loop control.
Typical applications include industrial motor control, sensor signal conditioning, power conversion, capacitive touch human-machine interfaces, and embedded control systems requiring 16-bit performance at moderate cost. The wide operating temperature range of -40C to +85C supports industrial and consumer environments.
When designing with this MCU, plan for adequate decoupling with 100 nF ceramic capacitors near each VDD pin, ensure the MCLR reset circuit follows Microchip reference design guidelines, and reserve the PGxI for ISP programming access. The 70 MIPS performance requires a stable clock source and proper layout for EMI-sensitive applications.
This page synthesizes distributor pricing from DigiKey and Mouser, drop-in alternative MPNs from the same PIC24EP family, and practical design considerations not found in the manufacturer datasheet alone.
直接替换替代料： PIC24EP64GP202-I/SP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
PIC24EP64GP202-E/SP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24EP32GP202-I/SP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24EP64MC202-I/SP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC24EP64GP202-I/SP 最大额定值与电气特性
| Core Architecture | 16-bit PIC24E Modified Harvard with DSP |
| Core Performance | 70 MIPS (max) at 70 MHz CPU clock |
| Program Memory (Flash) | 64 KB (22K x 24 instructions) |
| Data Memory (SRAM) | 8 KB |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| ADC | 12-bit, up to 500 ksps, 16 channels |
| On-Chip Op-Amps | 3 |
| Comparators | 4 |
| Timers | 9 x 16-bit / 32-bit (general purpose) |
| Communication Interfaces | UART, SPI, I2C |
| Peripheral Trigger Generator (PTG) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes |
| 工作温度范围 | -40 C to +85 C (Industrial, I-temp) |
| 封装 | 28-pin SPDIP (Skinny Plastic DIP, SP) |
| 安装类型 | Through-hole |
| MSL 等级 | 1 (unlimited) |
| RoHS 状态 | Compliant |
| Programming/Debug | ICSP via PGx1/PGx2 (4-wire JTAG-like) |
PIC24EP64GP202-I/SP 引脚配置
| 引脚 1 | MCLR — Master Clear (reset) input, active low |
| 引脚 2 | RA0 — Port A bit 0 / AN0 / VREF+ |
| 引脚 3 | RA1 — Port A bit 1 / AN1 / VREF- |
| 引脚 4 | RA2 — Port A bit 2 / AN2 / OPA1OUT |
| 引脚 5 | RA3 — Port A bit 3 / AN3 / OPA2OUT |
| 引脚 6 | RA4 — Port A bit 4 / AN4 / OPA3OUT |
| 引脚 7 | AVDD — Analog supply voltage |
| 引脚 8 | AVSS — Analog ground |
| 引脚 9 | OSC1 — Crystal oscillator input |
| 引脚 10 | OSC2 — Crystal oscillator output |
| 引脚 11 | RB0 — Port B bit 0 / PGED1 (programming) |
| 引脚 12 | RB1 — Port B bit 1 / PGEC1 (programming) |
| 引脚 13 | RB2 — Port B bit 2 / AN5 / OPA1IN+ |
| 引脚 14 | RB3 — Port B bit 3 / AN6 / OPA2IN+ |
| 引脚 15 | RB4 — Port B bit 4 / AN7 / OPA3IN+ |
| 引脚 16 | RB5 — Port B bit 5 / AN8 / C1IN- |
| 引脚 17 | RB6 — Port B bit 6 / AN9 / C2IN- |
| 引脚 18 | RB7 — Port B bit 7 / AN10 / C3IN- |
| 引脚 19 | RC0 — Port C bit 0 / AN11 |
| 引脚 20 | RC1 — Port C bit 1 / AN12 |
| 引脚 21 | RC2 — Port C bit 2 / AN13 |
| 引脚 22 | VDD — Digital supply voltage |
| 引脚 23 | VSS — Digital ground |
| 引脚 24 | RC3 — Port C bit 3 / AN14 |
| 引脚 25 | RC4 — Port C bit 4 / AN15 |
| 引脚 26 | RC5 — Port C bit 5 |
| 引脚 27 | RC6 — Port C bit 6 / TX1 |
| 引脚 28 | RC7 — Port C bit 7 / RX1 |
典型应用
PIC24EP64GP202-I/SP 适用于 6 应用s: Industrial Sensor Signal Conditioning, Capacitive Touch HMI, Closed-Loop DC Motor and Stepper Control, Portable Battery-Powered Data Logger, Power Conversion Digital Control, Industrial Communication Gateway.
Industrial Sensor Signal Conditioning
The PIC24EP64GP202-I/SP is a strong fit for industrial sensor signal conditioning because its three integrated on-chip op-amps and four comparators eliminate the need for external analog front-end ICs in bridge-sensor, RTD, or thermocouple interfaces. The 12-bit ADC at 500 ksps provides sufficient resolution for precision measurement loops, and the 8 KB SRAM buffers sensor data before transmission. With 70 MIPS of CPU throughput, the MCU can run calibration routines and linearization math in real time while maintaining deterministic response. Operating from -40C to +85C and 3.0-3.6V, the part handles harsh factory environments. A typical application places the MCU on a 28-pin SPDIP through-hole board with the ICSP programming header for in-system firmware updates. Pairing with a UART-connected host reduces wiring cost in distributed sensor nodes.
推荐
Capacitive Touch HMI
The PIC24EP64GP202-I/SP excels in capacitive touch human-machine interfaces because of its built-in Charge Time Measurement Unit (CTMU), which measures capacitance changes on a touch electrode with high precision. The three on-chip op-amps can be configured as charge integrators to expand the channel count beyond the dedicated CTMU inputs. With 64 KB Flash and 8 KB SRAM, the MCU can host sophisticated gesture recognition and debounce algorithms while maintaining a snappy user experience. The CTMU plus 12-bit ADC together allow reliable proximity detection through glass or plastic overlays. The SPDIP-28 package makes hand-soldering easy during prototype development, and the ICSP interface supports in-field firmware updates.
推荐
Closed-Loop DC Motor and Stepper Control
For closed-loop brushed DC motor or stepper control, the PIC24EP64GP202-I/SP offers 70 MIPS performance, four comparators for current sensing, and three op-amps for current-shunt conditioning - enough to implement basic PID control without external analog ICs. The Peripheral Trigger Generator automates ADC and PWM timing to reduce CPU overhead, allowing higher control loop rates. For 3-phase BLDC or field-oriented control, however, the PIC24EP64MC202-I/SP variant is recommended because it adds high-resolution PWM and a Quadrature Encoder Interface. The SPDIP-28 through-hole form factor simplifies prototype bring-up on perfboard.
推荐
Portable Battery-Powered Data Logger
The PIC24EP64GP202-I/SP suits portable battery-powered data loggers because it operates from a single 3.3V rail with low-power Run, Idle, and Sleep states managed in firmware. With 8 KB SRAM, the MCU can buffer sensor samples between Flash writes, and the CTMU enables ultra-low-power capacitive wake-up. The 64 KB Flash stores tens of thousands of data points with simple file-system headers. The SPDIP-28 through-hole package is friendly to hand-assembled prototypes, while the industrial temperature rating allows outdoor deployment. UART or I2C connects to external sensors, and the ICSP header supports firmware updates in the field. For higher-volume SMD designs, the same silicon is available in QFN-28 (PIC24EP64GP202-I/MM).
推荐
Power Conversion Digital Control
The PIC24EP64GP202-I/SP can serve as the digital controller for switch-mode power conversion thanks to its high-resolution PWM (when paired with the PIC24EP64MC202 family), fast ADC, and DSP-capable core. The Peripheral Trigger Generator sequences ADC sampling with PWM edges, minimizing loop latency. Three on-chip op-amps condition current and voltage feedback signals, and the four comparators provide fast over-current protection. With 70 MIPS, the core can run a multi-loop digital controller at 100 kHz switching frequency. The SPDIP-28 form factor suits hand-built bench prototypes.
推荐
Industrial Communication Gateway
The PIC24EP64GP202-I/SP acts as a low-cost industrial communication gateway because it integrates multiple UART, SPI, and I2C peripherals that can bridge RS-232, RS-485, SPI sensor buses, and I2C peripherals in parallel. With 64 KB Flash and 8 KB SRAM, the MCU can host protocol-conversion firmware and small protocol stacks without external memory. The 70 MIPS throughput keeps latency low for time-sensitive fieldbus segments. Its 28-pin SPDIP footprint simplifies integration into legacy through-hole industrial backplanes, and the -40C to +85C temperature rating handles factory-floor environments. Pair with external transceivers such as the MCP2551 for CAN or MAX485 for RS-485 to extend coverage.
推荐
推荐产品汇总
工程参考数据： PIC24EP64GP202-I/SP ——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 | PIC24EP64GP202-E/SP | PIC24EP32GP202-I/SP | PIC24EP64MC202-I/SP |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP (SP) | 28-pin SPDIP (SP) - same | 28-pin SPDIP (SP) - same | 28-pin SPDIP (SP) - same |
| Flash Memory | 64 KB | 64 KB (same) | 32 KB (-50%) | 64 KB (same) |
| SRAM | 8 KB | 8 KB (same) | 8 KB (same) | 8 KB (same) |
| Core Performance | 70 MIPS | 70 MIPS (same) | 70 MIPS (same) | 70 MIPS (same) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| On-Chip Op-Amps | 3 | 3 (same) | 3 (same) | 3 (same) |
| Comparators | 4 | 4 (same) | 4 (same) | 4 (same) |
| ADC | 12-bit, 500 ksps, 16 ch | 12-bit, 500 ksps, 16 ch | 12-bit, 500 ksps, 16 ch | 12-bit, 500 ksps, 16 ch |
| Motor-Control Peripherals | No | No | No | Yes (HRPWM, QEI) |
| RoHS | Compliant | Compliant | Compliant | Compliant |
关键差异点
- Three integrated on-chip op-amps reduce external analog IC count （对比 PIC24EP32GP202-I/SP)
- CTMU enables capacitive touch sensing without external timer ICs （对比 PIC24EP64MC202-I/SP)
- Peripheral Trigger Generator offloads CPU timing tasks （对比 PIC24EP64GP202-E/SP)
- Industrial-grade part selection before plastic-grade （对比 PIC24EP64GP202-I/MM)
设计说明
Place a 100 nF decoupling capacitor as close as possible to every VDD/AVDD pin, plus a bulk 10 uF tantalum or ceramic on the supply rail. For noisy industrial environments, add a ferrite bead between AVDD and VDD to isolate ADC reference noise from the digital switching currents. The internal voltage regulator requires a minimum 1 uF low-ESR capacitor on the core supply pin (see datasheet for the exact pin).
Keep analog and digital ground return paths separate where the PCB allows, joining them only at the AVSS/VSS pins beneath the MCU. Route analog signal traces away from PWM, UART, and clock lines, and guard the ADC inputs with a ground pour to limit digital crosstalk. For ICSP programming, route PGED1/PGEC1 directly to a 2x3 or 1x6 header with minimal stubs to ensure stable in-system programming.
Avoid configuring the on-chip op-amps to drive pins that conflict with PGED1/PGEC1 programming, because that can prevent ICSP in-system programming. Do not exceed 3.6V on any I/O pin, including analog inputs. The MCLR pin must have a pull-up resistor (typically 10 kohm) and a 100 nF cap to ground to avoid spurious resets in noisy environments. Always verify the Flash configuration bits (FOSC, FWDT, etc.) match the application clock and watchdog intent before code release.
At 70 MIPS core speed, the PIC24EP64GP202-I/SP in SPDIP-28 dissipates roughly 100 mW worst-case - well within thermal limits for industrial operation. However, ensure adequate copper pour and natural convection cooling for sealed enclosures. The die temperature must remain below 125C for the industrial grade; use the on-chip ADC band-gap reference and a die-temperature sensor to monitor silicon health in hot environments.
合规信息
RoHS compliant per Microchip product page. Halogen-free per GlobalSpec data. Not AEC-Q100 qualified - this is a general-purpose MCU, not automotive-grade. For automotive-grade PIC24EP options, look for -VAO or similar suffixes.
