PIC16F874T-04I/L - 8-bit Flash MCU, 7KB, 44-PLCC | Microchip
MPN: PIC16F874T-04I/L ⚠ آخری بار خریداریPIC16F874T-04I/L جائزہ
What is an 8-bit Flash microcontroller? An 8-bit Flash MCU is a single-chip computer that fetches, decodes, and executes instructions on an 8-bit data path, with non-volatile Flash memory holding the user program. The PIC16F874 belongs to the mid-range PIC family (PIC16 -> PIC mid-range MCU -> 8-bit microcontroller -> microcontroller -> semiconductor), positioned between baseline PIC10/12 devices and the high-performance PIC18 family. It is widely used in industrial control, instrumentation, and embedded consumer designs that require ADC, PWM, and serial communication peripherals.
Key features include 5 channels of 10-bit Analog-to-Digital Conversion (ADC), two 8-bit timers plus one 16-bit timer, a USART module, a Master Synchronous Serial Port (MSSP) supporting SPI and I2C, a Capture/Compare/PWM (CCP) module, and a parallel slave port for external bus interfacing. The industrial (-40C to +85C) operating temperature grade, 4V to 5.5V supply range, and 20 MHz maximum clock speed make the PIC16F874T-04I/L well suited for factory and process control.
The PIC16F874T-04I/L uses a Harvard-architecture RISC core with 35 single-word instructions, providing deterministic interrupt latency and predictable code execution. The integrated nanoWatt Technology features multiple idle and sleep modes with sub-microampere standby currents, enabling battery-backed industrial sensor nodes and remote instrumentation that must operate for years on a single cell.
Typical applications include industrial automation controllers, HVAC blower and damper controls, sensor signal conditioning front-ends, motor-drive interface logic, and user-interface panels with LED or LCD displays. The parallel slave port also allows the device to operate as a peripheral to a host CPU in larger systems.
When designing with this part, place decoupling capacitors (100 nF ceramic plus 10 uF bulk) within 5 mm of VDD/VSS pairs and reserve the MCLR pin for a proper reset network. The 44-PLCC footprint requires a socket for in-field firmware updates or bench prototyping. PIC16F874 is at end-of-life; Microchip recommends the pin-compatible PIC16F884 as the modern replacement.
کے لیے ڈراپ اِن متبادل PIC16F874T-04I/L — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16F874T-04I/L (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Timers, Core Architecture, Operating Temperature, ADC.
PIC16F874-04I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F874-04/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F874T-04E/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F874A-04I/L
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F874A-I/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F884-E/ML
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F877-04I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F874T-04I/L زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 enhanced 8-bit RISC |
| Program Memory (Flash) | 7 KB |
| RAM | 192 bytes |
| EEPROM Data Memory | 128 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Supply Voltage (VDD) | 4.0 V to 5.5 V |
| I/O Pins | 33 |
| ADC | 10-bit, 8 channels |
| Timers | 2 x 8-bit + 1 x 16-bit |
| CCP/PWM Modules | 1 CCP, 1 Enhanced CCP |
| Communication Interfaces | USART, SSP (SPI / I2C), Parallel Slave Port |
| پیکیج | 44-pin PLCC (J-lead, J-Lead) |
| آپریٹنگ درجہ حرارت | -40 C to +85 C (Industrial) |
| ماؤنٹنگ ٹائپ | Surface Mount (PLCC socket compatible) |
PIC16F874T-04I/L پن کنفیگریشن
| پن 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| پن 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| پن 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| پن 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| پن 5 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC Vref+ |
| پن 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پن 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI Slave Select |
| پن 8 | RE0/RD/AN5 — PORTE bit 0 / Parallel Read / Analog input 5 |
| پن 9 | RE1/WR/AN6 — PORTE bit 1 / Parallel Write / Analog input 6 |
| پن 10 | RE2/CS/AN7 — PORTE bit 2 / Parallel Chip Select / Analog input 7 |
| پن 11 | VDD — Positive supply (5 V) |
| پن 12 | VSS — Ground reference |
| پن 13 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| پن 14 | OSC2/CLKOUT — Crystal oscillator output / clock out (Fosc/4) |
| پن 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock in |
| پن 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 I/O |
| پن 17 | RC2/CCP1 — PORTC bit 2 / Enhanced CCP1 output |
| پن 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پن 19 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| پن 20 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| پن 21 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| پن 22 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| پن 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پن 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| پن 25 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| پن 26 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| پن 27 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| پن 28 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| پن 29 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| پن 30 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| پن 31 | VSS — Ground reference |
| پن 32 | VDD — Positive supply (5 V) |
| پن 33 | RB0/INT — PORTB bit 0 / External interrupt |
| پن 34 | RB1 — PORTB bit 1 |
| پن 35 | RB2 — PORTB bit 2 |
| پن 36 | RB3/PGM — PORTB bit 3 / Low-voltage ICSP programming |
| پن 37 | RB4 — PORTB bit 4 |
| پن 38 | RB5 — PORTB bit 5 |
| پن 39 | RB6/PGC — PORTB bit 6 / In-circuit debugger clock |
| پن 40 | RB7/PGD — PORTB bit 7 / In-circuit debugger data |
| پن 41 | VSS — Ground reference (PLCC only) |
| پن 42 | VDD — Positive supply 5 V (PLCC only) |
| پن 43 | NC — Not connected (per datasheet) |
| پن 44 | NC — Not connected (per datasheet) |
عام استعمالات
PIC16F874T-04I/L کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Automation Controllers, HVAC Blower and Damper Controls, Sensor Signal Conditioning Front-Ends, User Interface Panels with LED/LCD Displays, Small Brushed-DC Motor Drive Interface, Remote Instrumentation / Battery Sensor Nodes.
Industrial Automation Controllers
The PIC16F874T-04I/L fits industrial automation controllers because its 33 GPIO pins and 8-channel 10-bit ADC can directly interface to limit switches, 4-20 mA loop transmitters, and discrete sensors without external multiplexing. Its 5 V operating range tolerates long backplane wiring while the industrial -40C to +85C grade handles cabinet thermal rise. The 20 MHz core executes PID loops at sub-millisecond rates and the MSSP/USART peripherals connect to Modbus RTU slaves or HMI displays. With 7 KB of Flash, engineers can implement bootloaders for in-field firmware updates via RS-485, and the 192-byte RAM is sufficient for queueing serial frames between the USART and the application loop.
تجویز کردہ
HVAC Blower and Damper Controls
HVAC systems use the PIC16F874T-04I/L to drive triac-fired blower motors and modulating damper actuators via the Enhanced CCP module, which generates zero-cross-synchronized PWM at line frequency. The on-chip 10-bit ADC reads duct temperature sensors and pressure transducers with 4.88 mV LSB at 5 V VDD, while the 16-bit Timer1 can capture tachometer pulses from Hall-effect fan-speed sensors. nanoWatt sleep modes drop current below 1 uA during off-hours, satisfying ENERGY STAR standby budgets. The 44-PLCC socketed package simplifies service replacement in installed HVAC units.
تجویز کردہ
Sensor Signal Conditioning Front-Ends
The PIC16F874T-04I/L serves as a low-cost front-end for multi-sensor conditioning modules because its 8-channel ADC supports simultaneous monitoring of strain gauges, thermistors, and load cells. Internal bandgap reference (with external capacitor) yields 10-bit absolute accuracy adequate for weigh-scale displays up to 0.1 percent FS. The MSSP in I2C mode can read a digital temperature sensor or EEPROM for calibration constants, and USART streams results to a host PLC. Industrial temperature grade and 5 V tolerance permit deployment near motors and solenoids.
تجویز کردہ
User Interface Panels with LED/LCD Displays
User-interface panels benefit from the PIC16F874T-04I/L's 33 GPIO that drive multiplexed 7-segment LED arrays, character LCD modules (HD44780), or keypad matrices without external logic. The Parallel Slave Port allows an attached host CPU to write display data directly into the PIC's I/O register space, offloading refresh work from the main processor. The 7 KB Flash is enough to hold bitmap fonts and key-debounce state machines, while nanoWatt idle mode keeps panel standby power below 50 uA. The 44-PLCC socket permits fast factory rework.
تجویز کردہ
Small Brushed-DC Motor Drive Interface
The PIC16F874T-04I/L is well matched to brushed-DC motor control boards under 200 W because its Enhanced CCP module produces complementary PWM with programmable dead time at up to 39 kHz with 10-bit resolution from a 20 MHz oscillator. The 10-bit ADC samples shunt current at 50 kS/s for cycle-by-cycle current limiting, while the 16-bit Timer1 indexes the commutation timing for quadrature encoder feedback. The PIC16F874 industrial temperature grade tolerates the thermal environment near power MOSFETs, and the PLCC-44 package simplifies lab bring-up in a socketed fixture.
تجویز کردہ
Remote Instrumentation / Battery Sensor Nodes
Battery-powered remote instrumentation uses the PIC16F874T-04I/L because nanoWatt Technology sleep currents below 1 uA enable multi-year deployments on 2x AA cells with a boost converter. The 10-bit ADC monitors battery voltage and environmental sensors, while the USART wakes only on a periodic measurement or external interrupt to transmit via a connected radio module. The 192-byte RAM buffers telemetry frames between transmissions, and the 128-byte EEPROM logs calibration constants and event timestamps. Industrial -40C to +85C operation supports outdoor weather stations and pipeline monitors.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16F874T-04I/L — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F874-04I/L | PIC16F874A-04I/L | PIC16F874T-04E/L | PIC16F877-04I/L |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-PLCC | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same |
| Flash Program Memory | 7 KB | 7 KB | 14 KB (+100%) | 7 KB | 14 KB (+100%) |
| RAM | 192 bytes | 192 bytes | 368 bytes (+92%) | 192 bytes | 368 bytes (+92%) |
| EEPROM | 128 bytes | 128 bytes | 256 bytes | 128 bytes | 256 bytes |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 33 | 33 | 33 | 33 | 33 (40-pin DIP family) |
| ADC Channels | 8 x 10-bit | 8 x 10-bit | 8 x 10-bit | 8 x 10-bit | 8 x 10-bit |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C |
| Lifecycle Status | Last-time-buy | Last-time-buy | Active | Last-time-buy | Last-time-buy |
اہم امتیازی خصوصیات
- Higher memory variant in same package (بمقابلہPIC16F874A-04I/L)
- Extended temperature range option (بمقابلہPIC16F874T-04E/L)
- Tube-packaging sibling for prototyping (بمقابلہPIC16F874-04I/L)
- Microchip-recommended modern successor (بمقابلہPIC16F884-E/ML)
ڈیزائن نوٹس
Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD/VSS pair (the 44-PLCC provides three pairs on pins 11/12, 31/32, and 41/42). Add a single 10 uF bulk tantalum or ceramic on the VDD rail near the IC. The PIC16F874T-04I/L draws about 5 mA at 5 V/20 MHz in active mode and below 1 uA in sleep; verify regulator headroom if the supply is shared with relays or LEDs.
MCLR (pin 1) must NOT be left floating - tie it to VDD through a 10 kohm pull-up and a 100 nF cap to ground for a proper POR delay. Brown-out reset (BOR) should be enabled in CONFIG1 for industrial deployments; without it the part may execute undefined code during supply dips. The RB3/PGM pin is only sampled at reset for low-voltage ICSP entry - do not load it with heavy capacitance or the LVP handshake will fail.
Route the crystal traces (OSC1/OSC2, pins 13/14) as short, symmetric loops and guard them with a ground ring to prevent digital switching noise from coupling into the oscillator. The Parallel Slave Port lines (PORTD, PORTE) should be length-matched if the bus runs above 4 MHz to avoid setup/hold violations on the host side. Place the ICSP header (PGC/PGD on RB6/RB7) at the board edge for in-circuit programming access.
Estimated: at 20 MHz, 5 V VDD and full GPIO toggling, the PIC16F874T-04I/L dissipates approximately 250 mW worst-case, giving a junction temperature rise of roughly 25 C above ambient on a 100 C/W PLCC-44 footprint (estimated, not datasheet-measured). Inductive loads or relay coils near the MCU should be snubbed to keep local ambient below 70 C for long-term reliability in industrial enclosures.
تعمیل کی معلومات
RoHS and REACH compliance per Microchip product declaration. PIC16F874T-04I/L is industrial temp grade, not AEC-Q100 qualified - for automotive choose PIC16F874-04E/L or PIC16F884 extended variants.
