PIC16F1574-E/P - 8-bit MCU, 7KB Flash, 16-bit PWM, 14-PDIP | Microchip
MPN: PIC16F1574-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.6 | $1.60 |
| 10 | $1.42 | $14.20 |
| 100 | $1.18 | $118.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.95 | $950.00 |
PIC16F1574-E/P Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and programmable I/O peripherals on one die. Within the broader hierarchy, the PIC16F1574-E/P belongs to the PIC16F family of mid-range 8-bit microcontrollers, which in turn belongs to the class of microcontrollers within embedded processors, and ultimately to the integrated circuit / semiconductor taxonomy. The 8-bit PIC16 architecture uses a Harvard-style separated program/data bus and a RISC instruction set, which simplifies compiler output and reduces deterministic interrupt latency - properties valued in real-time control firmware.
Key features of the PIC16F1574-E/P include four independent 16-bit PWM channels (suitable for LED dimming, motor control, and digital power conversion), an 8-channel 10-bit ADC, two comparators, one 5-bit DAC channel, a Complementary Waveform Generator (CWG), and Peripheral Pin Select (PPS) for flexible signal routing. The chip integrates 7 timers and supports up to 11 I/O pins on the 14-pin package. The 16-bit PWM at 32 MHz delivers a time-step of roughly 16 ns - over 4000x finer resolution than a typical 8-bit PWM, enabling smooth LED fade transitions and precise switching-converter duty cycles.
Architecture-wise, the PIC16F1574-E/P uses Microchip's enhanced mid-range core with a 14-bit instruction word. The on-chip Charge Time Measurement Unit (CTMU) supports capacitive touch sensing, while the CWG block generates complementary MOSFET drive signals with programmable dead-band for half-bridge and full-bridge power stages. The XLP (eXtreme Low Power) design delivers typical sleep currents below 1 uA, allowing battery-powered nodes to operate for years from a single cell.
Typical applications include LED lighting controllers and color-mixing drivers, small brushed DC motor speed regulators, fan RPM controllers, sensor-interface nodes with analog front ends, low-cost power-supply supervisory circuits, and educational/hobbyist projects that benefit from the breadboard-friendly PDIP-14 footprint.
When designing with this part, allocate the PPS remapping carefully because only a subset of digital peripherals can be routed to each physical I/O pin; consult the device datasheet pin allocation table. For analog designs, do not exceed the absolute maximum rating on VDD (5.5 V) and ensure the MCLR pin is pulled high through a 10 kohm resistor for normal operation.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1574-E/P — 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 PIC16F1574-E/P (same form factor and footprint) — differing in Package, Comparators, I/O Pins, Mounting Type, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1574-I/P
✅ Drop-In✓ In Stock
$0.91 / Unit
View Datasheet →PIC16F1575-E/P
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC16F1455-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1503-I/ST
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.94 / Unit
View Datasheet →PIC16F15344-I/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.32 / Unit
View Datasheet →PIC16F15313-I/P
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.51 / Unit
View Datasheet →PIC16F1574-E/P Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 512 B |
| Maximum CPU Frequency | 32 MHz |
| Instruction Word Width | 14 bits |
| Package | 14-pin PDIP (P) |
| Pin Count | 14 |
| Mounting Type | Through-Hole (DIP) |
| Operating Temperature Range | -40C to +125C (E grade) |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| I/O Pins | 11 |
| 16-bit PWM Channels | 4 |
| 10-bit ADC Channels | 8 |
| Comparators | 2 |
| 5-bit DAC Channels | 1 |
| Timers | 7 |
| CWG (Complementary Waveform Generator) | Yes |
| PPS (Peripheral Pin Select) | Yes |
| CTMU (Capacitive Touch) | Yes |
| RoHS Status | Compliant |
PIC16F1574-E/P Pin Configuration
| Pin 1 | VDD — Positive supply voltage (2.3 V to 5.5 V) |
| Pin 2 | RA5 — Bidirectional I/O / MCLR / VPP |
| Pin 3 | RA4 — Bidirectional I/O / AN3 / CPS |
| Pin 4 | RA3 — Bidirectional I/O / MCLR / VPP |
| Pin 5 | RC5 — Bidirectional I/O / AN5 / DAC5 |
| Pin 6 | RC4 — Bidirectional I/O / AN4 |
| Pin 7 | RC3 — Bidirectional I/O / AN7 / CWG1B |
| Pin 8 | RC2 — Bidirectional I/O / AN6 / CWG1A |
| Pin 9 | RC1 — Bidirectional I/O / AN8 / PWM4 |
| Pin 10 | RC0 — Bidirectional I/O / PWM2 |
| Pin 11 | RA2 — Bidirectional I/O / AN2 / CWG1FLT |
| Pin 12 | RA1 — Bidirectional I/O / ICSPCLK |
| Pin 13 | RA0 — Bidirectional I/O / ICSPDAT |
| Pin 14 | VSS — Ground reference |
Typical Applications
PIC16F1574-E/P is suitable for 6 applications: LED Lighting and Color-Mixing Controller, Brushed DC Motor Speed Control, Sensor Interface and Data Acquisition Node, Digital Power Supply and SMPS Auxiliary Controller, Educational and Hobbyist Development Platform, Automotive Interior Lighting and Indicator.
LED Lighting and Color-Mixing Controller
The PIC16F1574-E/P's four 16-bit PWM channels make it ideally suited to driving multi-channel LED lighting fixtures, including RGBW color-mixing systems and high-resolution dimming applications. With 16-bit PWM resolution at 32 MHz, the device produces a time-step of approximately 16 ns, enabling smooth color fades and flicker-free dimming to below 0.1% duty cycle - critical for studio and architectural lighting where 8-bit PWM creates visible stepping artifacts. The on-chip CWG (Complementary Waveform Generator) also generates complementary outputs with programmable dead-band for high-power LED driver half-bridges. The 2.3 V to 5.5 V supply range supports both 3.3 V logic-level LEDs and 5 V analog driver chains.
Recommended
Brushed DC Motor Speed Control
The PIC16F1574-E/P is well matched to small brushed DC motor and fan speed regulators thanks to its 16-bit PWM and integrated analog peripherals. The 10-bit ADC samples back-EMF or current-sense amplifiers to close the speed loop, while the comparators provide hardware overcurrent protection that interrupts the PWM within microseconds - a faster response than software-only schemes. The CWG block generates anti-shoot-through complementary drive signals for H-bridge MOSFET drivers like the MCP14A0152. At nanoWatt XLP sleep currents under 1 uA, the part is suitable for battery-powered tools and handheld appliances where standby drain must be minimized.
Recommended
Sensor Interface and Data Acquisition Node
For low-cost sensor-interface nodes, the PIC16F1574-E/P offers an 8-channel 10-bit ADC, two comparators, and 11 GPIO pins in a compact 14-pin PDIP that fits on a 1 square-inch PCB. The 32 MHz CPU clock executes up to 8 MIPS, sufficient to oversample the ADC for software-averaging SNR improvements or to implement digital filtering on sensor inputs without external DSP hardware. The on-chip CTMU enables capacitive touch sensing for proximity or liquid-level applications, while PPS allows flexible remapping of UART, SPI, and I2C peripherals to any I/O pin. With typical sleep current below 1 uA, the device can run for years from a coin cell in intermittent-duty sensing roles.
Recommended
Digital Power Supply and SMPS Auxiliary Controller
Auxiliary controllers for switch-mode power supplies benefit from the PIC16F1574-E/P's 16-bit PWM and CWG with programmable dead-band, which generate precise gate-drive waveforms for synchronous-rectifier and active-clamp topologies. The 10-bit ADC can sample output voltage and current for digital compensation loops, while the comparators provide cycle-by-cycle current limiting that overrides the PWM within one instruction cycle. The 5-bit DAC enables programmable analog references for soft-start and current-limit thresholds. The -40C to +125C E temperature grade supports industrial PSU environments where convection cooling is absent.
Recommended
Educational and Hobbyist Development Platform
The PIC16F1574-E/P's 14-pin PDIP through-hole package is breadboard and DIP-socket compatible, making it ideal for university lab projects, Maker tutorials, and rapid prototyping. The PIC16 architecture is well documented in Microchip's application notes and supported by free MPLAB X IDE + XC8 toolchain, allowing students to compile, debug, and program the device with the low-cost PICkit 3 or PICkit 4 in-circuit debugger. The wide 2.3 V to 5.5 V supply range tolerates both USB-powered 5 V lab supplies and 3.3 V battery packs, removing power-design complexity from introductory embedded courses.
Recommended
Automotive Interior Lighting and Indicator
While the PIC16F1574-E/P itself is not AEC-Q100 qualified, its 16-bit PWM and 125C temperature rating make it a strong choice for non-safety automotive interior applications such as ambient lighting, footwell illumination, and door-panel indicators. The high PWM resolution produces smooth brightness transitions without audible flicker, while the 8-channel 10-bit ADC can read dashboard illumination sensors for daylight-responsive dimming. Designers targeting AEC-Q100 should evaluate the PIC16F1574-E/P-Q1 equivalent, but for non-safety interior nodes the standard E grade part provides reliable operation across automotive cabin temperature profiles.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1574-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1574-I/P | PIC16F1575-E/P | PIC16F1455-I/P | PIC16F15344-I/P |
|---|---|---|---|---|---|
| Package | 14-pin PDIP (P) | 14-pin PDIP (P) - same | 20-pin PDIP (P) - differs | 14-pin PDIP (P) - same | 14-pin PDIP (P) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 7 KB | 7 KB | 14 KB | 7 KB |
| SRAM | 512 B | 512 B | 512 B | 1 KB | 512 B |
| PWM Resolution | 16-bit (4 channels) | 16-bit (4 channels) | 16-bit (4 channels) | 10-bit (2 channels) | 10-bit (4 channels) |
| ADC | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 12 channels | 10-bit, 8 channels | 10-bit, 11 channels |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 48 MHz | 32 MHz |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| Approx. Unit Price (qty 1) | $1.60 | $1.55 | $1.65 | $1.85 | $1.45 |
Key Differentiators
- Four 16-bit PWMs in a 14-pin package (vs PIC16F15344-I/P)
- Industrial +125C temperature grade (vs PIC16F1574-I/P)
- Built-in CWG with programmable dead-band (vs PIC16F1455-I/P)
Design Notes
The 14-pin PDIP footprint is breadboard and DIP-socket compatible, enabling hand-soldered prototypes and university lab kits. For production designs, however, migrate to the SOIC-14 or TSSOP-14 variants of the same PIC16F1574 silicon - the PDIP is intended for prototyping and low-volume runs, not high-density SMT assembly.
Add a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 1) and a 10 uF bulk capacitor on the same supply trace to handle PWM load transients. The PIC16F1574-E/P's four 16-bit PWMs can source or sink up to 20 mA per pin, but the total package dissipation must stay below 800 mW - derate GPIO drive strength in software if driving multiple high-current loads simultaneously.
Do not leave the MCLR pin (RA3 on the 14-pin PDIP) floating - tie it to VDD through a 10 kohm pull-up resistor for normal operation, or to the PICkit programmer's MCLR line for debug. A floating MCLR causes erratic resets and ICSP programming failures. Also remember that PPS peripheral remapping is one-way; once assigned to a pin, you must clear PPSLOCK before changing assignments to avoid bus contention.
Compliance Information
RoHS compliant and lead-free per Microchip product page. The -E variant is rated to +125C but is NOT AEC-Q100 qualified; for AEC-Q100 applications evaluate the -Q1 suffix variant or the automotive PIC16F1574-E/P-Q1 family member.
