PIC24EP256GP202-I/SS - 256KB Flash 16-Bit 70 MIPS MCU | Microchip
料号： PIC24EP256GP202-I/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.16 | $8.16 |
| 10 | $7.34 | $73.40 |
| 100 | $6.42 | $642.00 |
| 500 | $5.71 | $2,855.00 |
| 1,000 | $5.09 | $5,090.00 |
PIC24EP256GP202-I/SS 概述
A PIC microcontroller (Programmable Interface Controller) is a single-chip computer containing a CPU core, Flash program memory, RAM, configurable peripherals, and I/O. PIC microcontrollers are widely used across automotive, industrial, medical, and consumer applications. The PIC24 family introduces 16-bit native data path and DSP instructions, bridging the gap between 8-bit PIC16/PIC18 microcontrollers and the 32-bit PIC32 lines.
Key differentiating features include 70 MIPS execution speed, dual 10/12-bit ADC modules with up to 1.1 Msps throughput, four on-chip op-amps usable as analog front-ends, configurable logic cells, and a Charge Time Measurement Unit (CTMU) for capacitive touch and accurate time measurement. The device runs at 3.0 V to 3.6 V VDD and supports an industrial temperature range of -40C to +85C.
The PIC24EP core uses a modified Harvard architecture with separate 24-bit program and 16-bit data paths, sixteen 16-bit working registers, and a hardware multiplier supporting 17x17-bit MAC operations in one cycle. This enables single-cycle DSP-class math for motor control, audio processing, and digital filtering. Peripherals include up to two I2C, two SPI, two UART modules, and a 16-bit Parallel Master Port.
Typical applications include industrial motor control (BLDC, PMSM, stepper), digital power conversion, LED lighting, capacitive touch HMIs, sensor conditioning, and low-cost DSP co-processing. The op-amps, CTMU, and PTG enable highly integrated signal-chain solutions with reduced external component count.
When designing with this part, ensure that the core supply (3.3 V nominal) is decoupled with both bulk and high-frequency ceramics, and that unused op-amp outputs are tied to valid rails rather than floating. Programming via ICSP requires specific VPP and ICSPCLK/ICSPDAT pin routing.
This page consolidates distributor pricing, verified drop-in alternatives, and design notes synthesized from the Microchip datasheet and reference designs.
直接替换替代料： PIC24EP256GP202-I/SS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24EP256GP202-I/SS （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package.
快速对比工具——选择替代料号进行并排对比：
PIC24EP256GP202-E/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP256GP202T-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP256GP202-H/SS
✅ 直接替换✓ 有现货
$6.3 / 个
查看数据手册 →PIC24EP256GP202-I/SP
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP256GP202-I/SO
✅ 直接替换📋 参考替代料（不在目录中）
dsPIC33EP256GP502-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC24EP256GP202-I/SS 最大额定值与电气特性
| Core Processor | PIC24 |
| Core Size | 16-Bit |
| Core Speed | 70 MIPS |
| Program Memory | 256 KB Flash (85.5K x 24) |
| RAM | 32 KB |
| Auxiliary Flash | 4 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | 28-SSOP (5.30 mm width) |
| 安装类型 | Surface Mount |
| Connectivity | I2C, IrDA, LIN, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, Motor Control PWM, POR, PWM, WDT |
| Number of I/O | 21 |
| Data Converters | A/D 10x12-bit |
| Oscillator Type | Internal |
| RoHS 状态 | Compliant |
| 无卤 | Compliant |
PIC24EP256GP202-I/SS 引脚配置
| 引脚 1 | MCLR — Master Clear (reset) input, active low |
| 引脚 2 | RA0 — Port A bit 0 / AN0 analog input |
| 引脚 3 | RA1 — Port A bit 1 / AN1 analog input |
| 引脚 4 | RA2 — Port A bit 2 / AN2 analog input / op-amp output |
| 引脚 5 | RA3 — Port A bit 3 / AN3 analog input / op-amp output |
| 引脚 6 | RA4 — Port A bit 4 / AN4 analog input |
| 引脚 7 | AVDD — Analog supply voltage |
| 引脚 8 | AVSS — Analog ground |
| 引脚 9 | OSC1 — Oscillator crystal input / CLKI |
| 引脚 10 | OSC2 — Oscillator crystal output / CLKO |
| 引脚 11 | RB0 — Port B bit 0 / AN5 / PGED1 programming |
| 引脚 12 | RB1 — Port B bit 1 / AN6 / PGEC1 programming |
| 引脚 13 | RB2 — Port B bit 2 / AN7 |
| 引脚 14 | RB3 — Port B bit 3 / AN8 |
| 引脚 15 | RB4 — Port B bit 4 / AN9 |
| 引脚 16 | RB5 — Port B bit 5 / AN10 |
| 引脚 17 | RB6 — Port B bit 6 / AN11 |
| 引脚 18 | RB7 — Port B bit 7 / AN12 |
| 引脚 19 | VSS — Digital ground |
| 引脚 20 | VDD — Digital supply voltage |
| 引脚 21 | RB8 — Port B bit 8 |
| 引脚 22 | RB9 — Port B bit 9 |
| 引脚 23 | RB10 — Port B bit 10 |
| 引脚 24 | RB11 — Port B bit 11 |
| 引脚 25 | RC0 — Port C bit 0 |
| 引脚 26 | RC1 — Port C bit 1 |
| 引脚 27 | RC2 — Port C bit 2 |
| 引脚 28 | RC3 — Port C bit 3 |
典型应用
PIC24EP256GP202-I/SS 适用于 7 应用s: BLDC / PMSM Motor Control, Digital Power Conversion / PFC, Capacitive Touch HMI, LED Lighting Control, Sensor Conditioning & Data Acquisition, Industrial Automation & PLC I/O, Medical & Health Monitoring Devices.
BLDC / PMSM Motor Control
The PIC24EP256GP202-I/SS is well suited to brushless DC and permanent-magnet synchronous motor control, with the 70 MIPS core closing FOC current loops in microseconds and the Motor Control PWM peripheral delivering complementary outputs with programmable dead time. Its four on-chip op-amps provide current-sense amplification without external components, and the 12-bit ADC at up to 1.1 Msps samples phase currents with low latency. Compared with discrete analog controllers, this MCU reduces board area and BOM while supporting sensorless and sensored algorithms. The 256 KB Flash accommodates lookup tables, observer coefficients, and user interface code for variable-speed drives.
推荐
Digital Power Conversion / PFC
The PIC24EP256GP202-I/SS powers digital PFC and LLC converters, leveraging its 70 MIPS core to run average-current-mode control at 100 kHz switching frequency with margin. Its 12-bit ADC provides high-resolution inductor-current and bus-voltage sampling, while the on-chip op-amps condition feedback signals directly. The 256 KB Flash supports coefficient tables for adaptive loop compensation, and the Peripheral Trigger Generator (PTG) sequences ADC and PWM events deterministically without CPU intervention. This integration replaces dedicated PFC controllers with a flexible software-defined solution.
推荐
Capacitive Touch HMI
The PIC24EP256GP202-I/SS integrates a Charge Time Measurement Unit (CTMU) that measures capacitance changes with sub-picofarad resolution, enabling robust capacitive touch buttons, sliders, and proximity sensors. The 70 MIPS CPU processes CTMU scans across dozens of channels while running debounce, gesture, and backlight control code. With 32 KB of RAM, the device holds calibration tables for environmental compensation without external memory. Designers can implement appliance front panels, smart locks, and industrial HMIs using only the MCU, eliminating dedicated touch ICs and reducing system cost.
推荐
LED Lighting Control
Architectural and tunable-white LED drivers benefit from the PIC24EP256GP202-I/SS, which generates multiple PWM channels for color mixing and dimming. The 16-bit PWM resolution supports smooth CCT transitions and flicker-free dimming down to 0.1 percent, while the CTMU can read ambient light sensors for closed-loop brightness control. The 256 KB Flash stores custom dimming curves and DMX/DALI protocol stacks. Compared with analog LED controllers, this MCU enables networked lighting with field-upgradeable firmware via the bootloader over UART or I2C.
推荐
Sensor Conditioning & Data Acquisition
Industrial sensor front-ends rely on the PIC24EP256GP202-I/SS to bridge strain gauges, load cells, and thermocouples into digital buses. Its four on-chip op-amps form a complete instrumentation amplifier, eliminating external analog ICs, while the 12-bit ADC samples with 1.1 Msps throughput for high-bandwidth vibration or pressure monitoring. With 32 KB RAM and 256 KB Flash, the MCU can run digital filters, linearization algorithms, and Modbus or CANopen protocol stacks simultaneously. This makes it ideal for weighing scales, flow meters, and process transmitters.
推荐
Industrial Automation & PLC I/O
The PIC24EP256GP202-I/SS functions as an intelligent I/O module in distributed control systems, providing digital and analog interfaces for factory automation. Its 70 MIPS core runs IEC 61131-3 style logic plus proprietary control algorithms, while the multiple UART, SPI, and I2C ports communicate with sensors and upstream PLCs. The MCPWM and CTMU peripherals support motor and touch integration within the same module, consolidating BOM. With industrial temperature rating and the Motor Control PWM for servo drives, this MCU is suitable for machine builders seeking compact, programmable I/O nodes.
推荐
Medical & Health Monitoring Devices
Portable medical devices such as blood-pressure monitors, pulse oximeters, and wearable health trackers can use the PIC24EP256GP202-I/SS to consolidate signal acquisition, processing, and display control. Its 12-bit ADC digitizes sensor signals, while the 70 MIPS core runs DSP filtering and trend analysis on vital signs. The CTMU enables touch-button interfaces without mechanical parts, improving ingress protection. With 256 KB Flash and 32 KB RAM, the MCU can store firmware supporting multiple measurement modes, calibration data, and BLE firmware stacks for connected health.
推荐
推荐产品汇总
工程参考数据： PIC24EP256GP202-I/SS ——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 | PIC24EP256GP202-E/SS | PIC24EP256GP202T-I/SS | PIC24EP256GP202-H/SS | dsPIC33EP256GP502-I/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| DSP Engine | No | No | No | No | Yes (dsPIC33 DSP) |
| Price @ 100 (USD, approx.) | 6.42 | 7.10 | 6.42 | 8.20 | 7.50 |
关键差异点
- Integrated on-chip op-amps （对比 PIC24EP256GP202T-I/SS)
- Wide temperature range variant （对比 PIC24EP256GP202-H/SS)
- DSP engine availability （对比 dsPIC33EP256GP502-I/SS)
- Peripheral Trigger Generator (PTG) （对比 PIC24EP128GP202-I/SO)
设计说明
Estimated: the PIC24EP256GP202-I/SS draws about 25 mA active at 70 MIPS from a 3.3 V supply (about 82 mW), and less than 10 uA in sleep mode. Place a 10 uF bulk tantalum or ceramic capacitor plus a 0.1 uF high-frequency bypass on every VDD/AVDD pair, with the 0.1 uF located within 5 mm of the pin. AVDD should be tied to VDD through a ferrite bead or shared supply to avoid ADC reference noise. The internal LDO generates 1.8 V core from VDD, so no external core regulator is needed.
Route the ICSP signals (PGEC1/PGED1 on RB1/RB0) without series resistors or buffers, and place a 4.7 kohm pull-up on MCLR as recommended by Microchip. Keep analog traces (ANx, op-amp I/O) short and guarded by a digital ground pour. The 28-SSOP thermal pad is not present, so no center-thermal land is required, but copper pours under the device improve mechanical reliability. Decoupling capacitor ground vias should be placed close to the capacitor ground pad to minimize inductance.
Do not leave unused op-amp outputs floating - tie them to midscale or to a known voltage through a resistor, otherwise the input leakage can drive the output rail-to-rail and waste quiescent current. Configure unused I/O pins as outputs driven low to minimize current. When using the ADC in 12-bit mode, allow adequate acquisition time (TACQ) for high-impedance sources, or buffer with an op-amp. Always reset unused peripherals in code before Sleep to avoid unintended current draw.
Estimated: at maximum 70 MIPS and 25 mA active current, total dissipation is approximately 0.08 W, well within SSOP-28 thermal limits (theta-JA ~95 C/W). Junction rise above ambient is therefore negligible (about 8 C at 25 C ambient). In hot industrial enclosures (+85 C ambient), junction remains below 100 C, so no heatsinking is required. Forced-air cooling is unnecessary under normal conditions but recommended if PWM outputs drive heavy gate-charge loads at high duty cycle.
Keep PWM traces short and impedance-controlled to avoid ringing on gate-driver inputs; place 22 ohm series damping resistors if traces exceed 25 mm. The MCPWM outputs can switch at 100 kHz+ with sub-100 ns edges, so follow motor-control reference design layout. For ADC analog inputs, route analog and digital grounds separately and join at a single point near the MCU. Use guard rings around high-impedance op-amp feedback networks to minimize leakage.
合规信息
RoHS and Halogen-Free compliant per GlobalSpec listing and Microchip product page. The -I/SS industrial grade is not AEC-Q100 qualified; for automotive applications, consult Microchip's PIC24 AEC-Q100 catalog.
