PIC16F1778-E/SP - 28KB Flash, 32MHz 8-Bit MCU | Microchip
料号： PIC16F1778-E/SP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.57 | $25.70 |
| 100 | $2.28 | $228.00 |
| 500 | $1.99 | $995.00 |
| 1,000 | $1.7 | $1,700.00 |
PIC16F1778-E/SP 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile data memory (RAM), and a configurable set of peripherals (ADC, timers, communication interfaces, PWM, etc.) into one package. Within the broader taxonomy, the PIC16F1778 belongs to: microcontroller -> 8-bit microcontroller -> PIC16 family -> PIC16F177x sub-family -> enhanced mid-range core (PIC16) -> CMOS flash MCU -> semiconductor. This category is designed for cost-sensitive embedded control where deterministic real-time performance and low power are more important than raw compute throughput.
Key features include 25 general-purpose I/O pins capable of 100 mA sink/source per pin, peripheral pin select (PPS) for flexible signal routing, four 16-bit timers, two UART/EUSART interfaces, SPI and I²C (MSSP), enhanced PWM with 16-bit resolution and dead-band control, and an on-chip 32MHz internal oscillator. The eXtreme Low Power (XLP) technology provides sleep currents in the nanoampere range, enabling battery-friendly designs across the 2.3V to 5.5V operating range.
The PIC16F1778 is built on an enhanced mid-range PIC16 core with a modified Harvard architecture, 14-bit instruction word, and 200ns single-cycle instruction execution. Its high level of analog integration (multiple op-amps, comparators, DAC and PRG on-die) eliminates many external components in closed-loop applications such as LED drivers, switched-mode power supplies, and battery chargers, reducing BOM cost and PCB area.
Typical applications include LED lighting drivers (dimmable, color-mixing), digital switch-mode power supplies (PFC, LLC, flyback converters), battery charging and management, brushless DC motor and stepper motor control, and general-purpose mixed-signal embedded control. The wide peripheral set also suits industrial sensor conditioning, smart appliances, and IoT edge nodes.
When designing with the PIC16F1778, take advantage of the on-chip op-amps and comparators to build the feedback loop before adding external components, and use peripheral pin select (PPS) to remap digital functions to any I/O - this avoids PCB rework when a pin assignment changes late in the design cycle. The 28-pin SPDIP package is recommended for prototyping and breadboard work; for production, the QFN/SSOP variants of the same die are available.
This page synthesizes distributor pricing, drop-in same-die and same-package alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides, helping engineers select, qualify, and source the PIC16F1778-E/SP with confidence.
直接替换替代料： PIC16F1778-E/SP ——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： PIC16F1778-E/SP （相同外形与封装尺寸） ——差异在于 ADC, Package, Comparators, DAC, Program Memory (Flash).
快速对比工具——选择替代料号进行并排对比：
PIC16F1778-I/SP
✅ 直接替换✓ 有现货
$2.1 / 个
查看数据手册 →PIC16F1776-E/SP
✅ 直接替换✓ 有现货
$2.2 / 个
查看数据手册 →PIC16F1773-E/SP
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F15354-E/SP
✅ 直接替换✓ 有现货
$0.89 / 个
查看数据手册 →PIC16F1718-I/SP
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.32 / 个
查看数据手册 →PIC16F1778-E/SP 最大额定值与电气特性
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Program Memory (Flash) | 28KB (16K x 14 words) |
| Data RAM | 2KB |
| Maximum CPU Frequency | 32 MHz (8 MIPS) |
| Operating Voltage Range | 2.3 V to 5.5 V |
| 工作温度范围 | -40 °C to +125 °C (E = extended) |
| 封装 | 28-pin SPDIP (Skinny Plastic DIP), 0.300" / 7.62 mm row spacing, through-hole |
| I/O Pins | 25 (with 100 mA sink/source per pin) |
| ADC | 10-bit |
| DAC | 10-bit |
| Comparators | High-speed |
| Op-Amps | On-chip operational amplifiers |
| PWM Channels | 10-bit and 16-bit PWM with steering and dead-band |
| Programmable Ramp Generator (PRG) | Yes |
| Zero-Cross Detect (ZCD) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Communication Interfaces | EUSART (x2), SPI, I²C (MSSP) |
| Timers | 16-bit timers |
| Low-Power Technology | XLP (eXtreme Low Power) |
| RoHS 状态 | Compliant |
| 安装类型 | Through-Hole |
PIC16F1778-E/SP 引脚配置
| 引脚 1 | MCLR/RE3 — Master Clear (reset) input or digital-only RE3 I/O |
| 引脚 2 | RA0 — PORTA bit 0 / analog input |
| 引脚 3 | RA1 — PORTA bit 1 / analog input |
| 引脚 4 | RA2 — PORTA bit 2 / analog input |
| 引脚 5 | RA3 — PORTA bit 3 / analog input |
| 引脚 6 | RA4 — PORTA bit 4 / analog input |
| 引脚 7 | RA5 — PORTA bit 5 / analog input |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | RA7 — PORTA bit 7 / analog input |
| 引脚 10 | RA6 — PORTA bit 6 / analog input |
| 引脚 11 | RC0 — PORTC bit 0 / analog input |
| 引脚 12 | RC1 — PORTC bit 1 / analog input |
| 引脚 13 | RC2 — PORTC bit 2 / analog input |
| 引脚 14 | RC3 — PORTC bit 3 / analog input |
| 引脚 15 | RC4 — PORTC bit 4 / analog input |
| 引脚 16 | RC5 — PORTC bit 5 / analog input |
| 引脚 17 | RC6 — PORTC bit 6 / analog input |
| 引脚 18 | RC7 — PORTC bit 7 / analog input |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| 引脚 21 | RD0 — PORTD bit 0 / analog input |
| 引脚 22 | RD1 — PORTD bit 1 / analog input |
| 引脚 23 | RD2 — PORTD bit 2 / analog input |
| 引脚 24 | RD3 — PORTD bit 3 / analog input |
| 引脚 25 | RD4 — PORTD bit 4 / analog input |
| 引脚 26 | RD5 — PORTD bit 5 / analog input |
| 引脚 27 | RD6 — PORTD bit 6 / analog input |
| 引脚 28 | RD7 — PORTD bit 7 / analog input |
典型应用
PIC16F1778-E/SP 适用于 6 应用s: Dimmable LED Lighting Driver, Switch-Mode Power Supply (SMPS) Digital Control, Battery Charging and Management, Brushless DC (BLDC) Motor Control, Industrial Sensor Conditioning, General-Purpose Mixed-Signal Embedded Control.
Dimmable LED Lighting Driver
The PIC16F1778-E/SP is a strong fit for dimmable LED drivers because its 16-bit PWM with steering, on-chip op-amps, high-speed comparators, programmable ramp generator (PRG) and zero-cross detect (ZCD) cover the entire analog feedback loop in a single die. The 32MHz CPU runs at 8 MIPS, easily handling flicker-free PWM at frequencies above 1kHz while leaving headroom for color-mixing logic. Compared with a discrete PWM + op-amp + comparator solution, the integration cuts BOM cost by 30-40% and reduces PCB area, while the XLP technology keeps standby power below 50 nA for always-on lighting control.
推荐
Switch-Mode Power Supply (SMPS) Digital Control
For digital control of AC-DC and DC-DC converters (PFC, LLC, flyback), the PIC16F1778-E/SP's 16-bit high-resolution PWM with dead-band control, on-chip op-amps and 10-bit ADC provide the deterministic analog front-end required for closed-loop regulation. Its 32MHz operation closes control loops in microseconds, while PPS allows the PWM outputs to be routed to any I/O for optimized gate-driver placement. Compared with analog UC3842-style controllers, this part delivers adaptive digital control, soft-start profiling, and telemetry over UART without external DSP or FPGA cost.
推荐
Battery Charging and Management
The PIC16F1778-E/SP supports multi-stage Li-ion / LiFePO4 / lead-acid chargers thanks to its 10-bit ADC for voltage and current telemetry, 10-bit DAC for set-point programming, and on-chip op-amps for current-sense conditioning. Its XLP low-power mode enables sleep currents in the nanoampere range, critical for always-on chargers on standby. Compared with an off-the-shelf charger IC, this design allows customer-specific CC/CV/voltage-temperature profiles without firmware changes, and the same die can be reused across product SKUs.
推荐
Brushless DC (BLDC) Motor Control
For sensorless or Hall-sensor BLDC motor control, the PIC16F1778-E/SP offers 16-bit PWM with complementary outputs and dead-band control, plus high-speed comparators and a zero-cross detect (ZCD) peripheral for back-EMF sensing. The 32MHz CPU executes field-oriented control (FOC) software or trapezoidal commutation in real time, while PPS routes the PWM to any I/O to simplify PCB layout for three-phase bridges. Compared with dedicated motor-driver ICs, this approach delivers tunable firmware control of acceleration curves and torque limits.
推荐
Industrial Sensor Conditioning
In PLC analog-input modules and 4-20 mA sensor transmitters, the PIC16F1778-E/SP integrates signal conditioning that previously required multiple op-amps and a separate MCU. The on-chip op-amps can be configured as instrumentation front-ends, while the 10-bit ADC and DAC handle linearization and 4-20 mA loop output. The SPDIP-28 package fits legacy through-hole industrial backplanes, and the extended temperature grade (-40 to +125°C) ensures operation in harsh factory environments.
推荐
General-Purpose Mixed-Signal Embedded Control
The PIC16F1778-E/SP serves as a versatile mixed-signal controller for appliance controls, smart-home sensor hubs, and IoT edge nodes where deterministic real-time response, low power, and rich analog integration matter more than raw CPU speed. Its EUSART, SPI and I²C (MSSP) peripherals bridge to radios and sensors, while PPS enables pin reuse across PCB revisions without MCU changes. Compared with Cortex-M0+ parts in the same price band, this PIC16 offers more integrated analog and PWM channels at lower power consumption.
推荐
推荐产品汇总
工程参考数据： PIC16F1778-E/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 | PIC16F1778-I/SP | PIC16F1776-E/SP | PIC16F1773-E/SP | PIC16F15354-E/SP | PIC16F1718-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SPDIP-28 | SPDIP-28 (same) | SPDIP-28 (same) | SPDIP-28 (same) | SPDIP-28 (same) | SPDIP-28 (same) |
| Flash Memory | 28 KB | 28 KB (same) | 16 KB | 7 KB | 7 KB | 28 KB (same) |
| Data RAM | 2 KB | 2 KB (same) | 2 KB (same) | 1 KB | 1 KB | 2 KB (same) |
| Max CPU Frequency | 32 MHz | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) |
| ADC Resolution | 10-bit | 10-bit (same) | 10-bit (same) | 10-bit (same) | 10-bit (same) | 10-bit (same) |
| PWM Resolution | 10-bit and 16-bit | 10-bit and 16-bit (same) | 10-bit and 16-bit (same) | 10-bit and 16-bit (same) | 10-bit | 10-bit |
| On-chip Op-Amps | Yes (multiple) | Yes (multiple, same) | Yes (multiple) | Yes (reduced count) | No | Limited count |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) |
| Temperature Grade | Extended (-40 to +125°C) | Industrial (-40 to +85°C) | Extended (-40 to +125°C, same) | Extended (-40 to +125°C, same) | Extended (-40 to +125°C, same) | Industrial (-40 to +85°C) |
| Approx. Unit Price (USD, qty 100) | 2.28 | 2.10 | 1.95 | 1.70 | 1.65 | 2.10 |
关键差异点
- Largest flash in 28-pin SPDIP of PIC16F177x family （对比 PIC16F1776-E/SP)
- Highest on-chip analog integration in PIC16F177x SPDIP-28 line （对比 PIC16F1773-E/SP)
- Extended temperature range for industrial deployments （对比 PIC16F1778-I/SP)
- Enhanced mid-range core with legacy compatibility （对比 PIC16F15354-E/SP)
设计说明
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 20) of the PIC16F1778-E/SP, plus a bulk 10 µF tantalum or ceramic on the same rail. The internal POR/BOR circuits reject brownouts down to 1.9 V (BOR trip), but stable VDD rail during ADC conversions is critical - noisy VDD injects noise into the 10-bit ADC result. For battery-powered designs, leverage the XLP sleep modes (Sleep current < 50 nA typical) and use the on-chip LFINTOSC during sleep to keep timers running.
Estimated: at 32 MHz clock, 5.5 V supply, and all peripherals active, the PIC16F1778-E/SP consumes roughly 7-10 mA (typical datasheet figure 7 mA at 32 MHz/5V). The SPDIP-28 package has θJA around 60 °C/W on a 2-layer PCB with no copper pour; at 25 °C ambient, junction temperature stays well below the 125 °C maximum. For continuous operation above 70 °C ambient, add a 1 square inch copper pour under the device to drop θJA below 50 °C/W.
The SPDIP-28 footprint allows easy rework on a 0.300 inch / 7.62 mm row spacing pad pattern. Keep the MCLR line short and decoupled to VSS with a 10 kΩ pull-up to VDD plus a 100 nF cap for noise immunity. Use a star-ground topology when routing the analog AVdd/AVss reference pins (shared with VDD/VSS on this package) and keep the analog inputs away from PWM switching traces to minimize ADC noise pickup.
When migrating from PIC16F1778 to PIC16F1776, do not assume identical peripheral availability - the PIC16F1776 has fewer op-amps and PWM channels. Always cross-check the PPS mapping because remapping the same UART RX to a different pin requires explicit PPSSEL/PSLOCK register writes. The 'E' temperature grade (-40 to +125 °C) suffix is distinct from the 'I' grade (-40 to +85 °C); for outdoor or industrial deployments always specify 'E'. When using the on-chip op-amps, configure the input pins as analog (ANSx register) or reading accuracy degrades.
For SPI communications above 4 MHz or I²C in Fast-mode Plus (1 MHz), keep traces under 50 mm and add 22-33 Ω series damping resistors near the MCU pin to suppress ringing. The EUSART TX pin can be remapped via PPS - this is useful when routing around PCB obstacles without changing MCU firmware other than PPS configuration. For PWM-critical motor-control loops, route the PWM outputs directly to gate drivers without intermediate buffers, and place the bootstrap diodes within 5 mm of the high-side gate-drive pin.
合规信息
RoHS and lead-free per Microchip PIC16F1778 product page. Not AEC-Q100 qualified (industrial-grade MCU). Halogen-free per Microchip environmental compliance documentation.
