PIC16LF1578-E/SS - 32MHz 8-Bit MCU, 7KB Flash | Microchip
MPN: PIC16LF1578-E/SS ✓ Hoạt độngPIC16LF1578-E/SS Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash/RAM/EEPROM), peripherals (timers, ADC, PWM, communication interfaces), and I/O into a single package. Within the broader taxonomy, the PIC16LF1578 belongs to: microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F/LF157x sub-family -> semiconductor IC. The "LF" designation indicates the low-voltage/frequency variant optimized for battery-powered and energy-efficient applications, while the "F" siblings (e.g., PIC16F1578) cover the standard 2.3V-5.5V range.
Key differentiating features of the PIC16LF1578-E/SS include four 16-bit PWMs with independent timers for high-resolution LED lighting, motor control, and digital power conversion; a 10-bit ADC with up to 12 channels; a 5-bit DAC; a Complementary Waveform Generator (CWG); Hardware Limit Timer (HLT) modules; a 16-bit timer; and Peripheral Pin Select (PPS) for flexible I/O routing. Communication interfaces include EUSART and I2C/SPI. The device supports in-circuit debugging via ICD and program verification through the standard ICSP interface.
Typical applications include LED lighting drivers requiring 16-bit PWM resolution, DC-DC converters and digital power supplies needing configurable complementary outputs, automotive sensor interfaces, low-power IoT sensor nodes, and consumer appliance control boards. The wide 1.8V-3.6V range and low-power modes (Sleep, Idle, Doze) suit battery-powered designs.
When designing with this part, leverage Peripheral Pin Select (PPS) to remap peripherals to available pins and reuse the same firmware across multiple hardware revisions, but use regular-fit clamp diodes to protect the I/O pins.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1578-E/SS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF1578-E/SS (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, ADC, PWM Channels, Program Memory (Flash).
PIC16LF1579-E/SS
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Xem tài liệu →PIC16F1578-E/SS
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PIC16LF1578-I/SS
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Xem tài liệu →PIC16LF1508-E/SS
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Xem tài liệu →PIC16LF1575-E/SL
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Xem tài liệu →PIC16LF1518-E/SS
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Xem tài liệu →PIC16LF1507-E/SS
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Xem tài liệu →PIC16LF1578-E/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 8-bit RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 512 bytes |
| Data EEPROM | 128 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V (LF variant) |
| Nhiệt độ hoạt động | -40 C to +125 C (E grade, automotive) |
| Hộp | 20-pin SSOP (5.30 mm body width) |
| Kiểu lắp đặt | Surface Mount (Gull Wing) |
| ADC | 10-bit, up to 12 channels |
| DAC | 5-bit |
| PWM Channels | Four 16-bit PWMs |
| Complementary Waveform Generator (CWG) | Yes |
| Hardware Limit Timer (HLT) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Communication Interfaces | EUSART, I2C, SPI |
| Timers | 16-bit Timer1, 8-bit Timer0/Timer2, HLT |
| ICSP/ICD Debug | Yes |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC16LF1578-E/SS
| Chân 1 | VDD — Positive supply voltage (1.8V-3.6V) |
| Chân 2 | RA5 — Port A bit 5 (ICSP PGD) |
| Chân 3 | RA4 — Port A bit 4 |
| Chân 4 | RA3 — Port A bit 3 (MCLR/VPP) |
| Chân 5 | RC5 — Port C bit 5 |
| Chân 6 | RC4 — Port C bit 4 |
| Chân 7 | RC3 — Port C bit 3 (PWM) |
| Chân 8 | RC6 — Port C bit 6 |
| Chân 9 | RC7 — Port C bit 7 |
| Chân 10 | RB7 — Port B bit 7 (ICSP PGC) |
| Chân 11 | RB6 — Port B bit 6 (ICSP PGD) |
| Chân 12 | RB5 — Port B bit 5 |
| Chân 13 | RB4 — Port B bit 4 |
| Chân 14 | RC2 — Port C bit 2 |
| Chân 15 | RC1 — Port C bit 1 |
| Chân 16 | RC0 — Port C bit 0 |
| Chân 17 | RA2 — Port A bit 2 |
| Chân 18 | RA1 — Port A bit 1 (PPS ref) |
| Chân 19 | RA0 — Port A bit 0 |
| Chân 20 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC16LF1578-E/SS phù hợp cho 6 Áp dụngs: LED Lighting Drivers, Digital Power / DC-DC Converters, Automotive Sensor Interfaces, Low-Power IoT Sensor Nodes, Consumer Appliance Control, Industrial Sensor Signal Conditioning.
LED Lighting Drivers
The PIC16LF1578-E/SS is purpose-built for high-resolution LED lighting applications. Its four independent 16-bit PWMs provide 65,536-step dimming resolution per channel, enabling smooth fades, flicker-free operation below 100 Hz PWM, and precise color temperature mixing in tunable-white fixtures. The Complementary Waveform Generator (CWG) generates complementary outputs with programmable dead-band for half-bridge and full-bridge LED driver stages - critical for high-power commercial and architectural lighting. The 10-bit ADC monitors LED current via a sense resistor for closed-loop constant-current regulation. Operating from 1.8 V to 3.6 V, the device can be powered directly from a single Li-ion cell or two AA cells in portable luminaires. The 20-pin SSOP package fits compact driver PCBs.
Được đề xuất
Digital Power / DC-DC Converters
The PIC16LF1578-E/SS is well-suited for digital power conversion thanks to its high-resolution 16-bit PWMs, Complementary Waveform Generator (CWG), and Hardware Limit Timer (HLT) modules. The CWG generates complementary gate-drive signals for synchronous buck, boost, and half-bridge topologies with programmable dead-band to prevent shoot-through. The 10-bit ADC samples the output voltage and current for digital control loops at update rates exceeding 1 MHz. The HLT module provides hardware-based cycle-by-cycle current limiting for safety-critical power supplies. The 7 KB FLASH holds a typical digital-compensation control loop with state-machine code. The 32 MHz CPU delivers the MIPS headroom required for fast-loop control. Per Microchip AN1973, this PIC16LF157x family is recommended for sub-500W digital power applications.
Được đề xuất
Automotive Sensor Interfaces
The PIC16LF1578-E/SS is AEC-Q100 qualified (E temperature suffix = -40C to +125C automotive grade) and operates reliably in harsh automotive environments. The device can interface to analog sensors (thermistors, pressure transducers, position sensors) via its 10-bit ADC with up to 12 channels. The EUSART and I2C peripherals enable communication with automotive bus networks (LIN slave via external transceiver). The wide operating voltage (1.8 V-3.6 V) tolerates 12 V automotive battery transients when paired with an external regulator like the MCP16331. The 7 KB FLASH holds sensor calibration tables and LIN/J1939 protocol stacks. Per Microchip automotive product documentation, the PIC16LF157x family is qualified for cabin, body, and lighting ECUs.
Được đề xuất
Low-Power IoT Sensor Nodes
The PIC16LF1578-E/SS in its "LF" low-voltage variant is optimized for battery-powered IoT sensor nodes operating from 1.8 V-3.6 V. The device supports multiple low-power modes - Sleep (typically <100 nA), Idle, and Doze - extending battery life for years on a single coin cell. The 10-bit ADC samples environmental data (sensor, humidity, light) on wake-up events, and the EUSART/I2C peripherals transmit to sub-GHz radio modules or BLE SoCs. The wide 1.8 V-3.6 V range matches a single Li-ion or 2x AA cells directly. The 7 KB FLASH accommodates over-the-air firmware update (bootloader) plus application code. Per Microchip AN1414, the PIC16LF157x delivers best-in-class sleep current for battery IoT designs.
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Consumer Appliance Control
The PIC16LF1578-E/SS provides an excellent price/performance ratio for consumer appliance control boards - washing machines, dishwashers, microwave ovens, air purifiers, and small kitchen appliances. The 16-bit PWMs drive variable-speed BLDC or induction motors via gate drivers; the CWG generates complementary outputs for synchronous rectification. The 10-bit ADC reads thermistor inputs for closed-loop temperature control. The EUSART/I2C interface displays on segment LCDs or character LCDs. The 20-pin SSOP package is easy to hand-solder for prototyping. Per Microchip appliance design guides, this PIC16LF157x family is recommended for cost-sensitive BLDC and universal-motor control with 16-bit PWM resolution.
Được đề xuất
Industrial Sensor Signal Conditioning
The PIC16LF1578-E/SS is suitable for industrial 4-20 mA loop-powered transmitters, RTD/thermocouple conditioning, and bridge sensor signal conditioning. The 10-bit ADC digitizes conditioned analog signals, while the CWG/PWM generate excitation signals for RTD measurements. The 32 MHz CPU performs digital linearization and calibration. The EUSART outputs the conditioned signal via RS-485 or RS-232 transceivers. The wide operating temperature (-40C to +125C) covers industrial environments. Per Microchip industrial reference designs, the PIC16LF157x family supports IEC 61000-4 EMC-compliant designs when paired with proper ESD/EMI protection.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1578-E/SS — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LF1579-E/SS | PIC16F1578-E/SS | PIC16LF1578-I/SS | PIC16LF1508-E/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Flash Memory | 7 KB | 14 KB | 7 KB | 7 KB | 4 KB |
| RAM | 512 B | 1 KB | 512 B | 512 B | 256 B |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
| PWM Resolution | 4x 16-bit | 4x 16-bit | 4x 16-bit | 4x 16-bit | 10-bit |
| CWG Module | Yes | Yes | Yes | Yes | No |
| AEC-Q100 Qualified | Yes | Yes | Yes | No (industrial) | Yes |
Bảo phân biệt quan trọng
- Four 16-bit PWMs with CWG/HLT for high-resolution motor/lighting control (vsPIC16LF1508-E/SS)
- AEC-Q100 automotive qualified with -40C to +125C E temperature grade (vsPIC16LF1578-I/SS)
- Wide 1.8V-3.6V VDD range (LF) with low-power Sleep mode (vsPIC16F1578-E/SS)
Ghi chú thiết kế
The PIC16LF1578-E/SS operates from 1.8 V to 3.6 V on VDD (pin 1) with VSS (pin 20) as the ground return. Place a 100 nF decoupling capacitor as close to the VDD pin as possible, plus a bulk 1-10 uF capacitor on the VDD rail. For battery-powered designs using a single Li-ion cell, add a 1 uF bulk plus 100 nF decoupling combination. For noise-sensitive analog applications, isolate the analog AVVDD (if used) from the digital VDD with a ferrite bead or small L-C filter. Per Microchip PIC16LF157x hardware design checklist, VDD rise time must remain below the BOR (Brownout) threshold to avoid undefined startup behavior.
The 20-pin SSOP (5.30 mm body width) package is suitable for hand-soldering with a fine-tip iron and 0.5 mm lead pitch. For reflow soldering, follow the standard JEDEC J-STD-020 profile for MSL-1 packages. Keep the ICSP/PGD/PGC traces away from high-current switching nodes to avoid programming/debug interference. The exposed thermal pad (if present) on SSOP variants should connect to a ground pour for thermal dissipation. Per the Microchip SSOP land pattern recommendation, use 0.4 mm-wide pads with 0.2 mm solder mask dams for reliable assembly.
Common pitfalls when designing with the PIC16LF1578-E/SS include: (1) exceeding 3.6 V on VDD - the LF variant does not tolerate 5 V input; use PIC16F1578 instead for 5 V systems; (2) failing to set the MCLR/VPP pin configuration correctly - leaving MCLR disabled prevents ICSP programming; (3) ignoring the configuration word settings for the LF/F variant selection - using LF configuration bits on an F part causes undefined behavior; (4) not enabling the weak pull-ups on port pins left floating - floating inputs cause excess current and erratic behavior; (5) overlooking the PPS unlock sequence before remapping peripherals - writes to PPS registers require the IOLOCK bit to be cleared first.
Thông tin tuân thủ
AEC-Q100 Grade 1 qualified per the 'E' temperature suffix. RoHS compliant per Microchip product page. Lead-free and halogen-free per Microchip environmental certification. PPAP documentation available for automotive Tier 1 customers.
