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PIC16F874-04/PQ

Name: PIC16F874-04/PQ
Rating: 4.7 (12 reviews)

IC MCU 8BIT 7KB FLASH 44MQFP

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製造商。部分 #PIC16F874-04/PQ
包 MQFP-44
資料表 PIC16F874-04/PQ DataSheet
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規格

Package	Tray
Series	PIC® 16F
ProductStatus	Active
CoreProcessor	PIC
CoreSize	8-Bit
Speed	4MHz
Connectivity	I²C, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
NumberofI/O	33
ProgramMemorySize	7KB (4K x 14)
ProgramMemoryType	FLASH
EEPROMSize	128 x 8
RAMSize	192 x 8
Voltage-Supply(Vcc/Vdd)	4V ~ 5.5V
DataConverters	A/D 8x10b
OscillatorType	External
OperatingTemperature	0°C ~ 70°C (TA)
MountingType	Surface Mount
Package/Case	44-QFP

概述

Description

PIC16F874-04/PQ is a mid‑range 8-bit Microchip PIC in a 40‑pin Plastic DIP (PQ) package from the PIC16F874 family. Core idea: a small microcontroller for general embedded control.
Key specs (high level):
- Memory: 8K x 14 program memory; ~368 bytes RAM; 256 bytes EEPROM.
- Clock: operation from external clock up to ~20 MHz (XT/HS/LP options).
- I/O: multiple I/O pins via PORTA/PORTB (about 14 I/O lines in typical DIP).
- Peripherals: 10-bit ADC with 8 channels; two capture/compare/PWM modules (CCP1/CCP2); Master Synchronous Serial Port (MSSP) for SPI/I2C; timers: Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit with prescaler).
- Other features: watchdog timer, brown‑out reset, MCLR, ICSP for programming, and LVP support.
- Power: 2–5.5 V operation.
- Development: supported by MPLAB IDE and XC8 (and other) compilers.
Applications: general-purpose control, sensing, data acquisition, small embedded tasks. For exact pinout, timing, and electrical specs, refer to the PIC16F874 datasheet.

Features

Key features of PIC16F874-04/PQ (Industrial temp, 40‑pin PDIP):
- 8-bit Microcontroller, PIC16F874 family core (RISC-like with 4 Tcycles per instruction)
- Program memory: 8K x 14-bit Flash, self-programmable
- Data memory: 368 B RAM; 256 B EEPROM
- Clock/Timing: Up to 20 MHz ESL oscillator; instruction cycle = Fosc/4
- I/O: Three I/O ports (PORTA, PORTB, PORTC)
- ADC: 10-bit A/D converter, 8 channels
- Timers: Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit, with prescaler)
- Peripherals: CCP module (PWM/Capture/Compare), EUSART, MSSP (SPI/I2C)
- Interrupts: Rich interrupt feature set (various sources)
- Safety/Self-check: WDT, Power-on Reset, Brown-out Reset
- Programming: In-Circuit Serial Programming (ICSP) via PGC/PGD (RB6/RB7)
- Package/Temp: 40-pin PDIP; industrial temp range (-40°C to +85°C) as -PQ
Optional/notes:
- Operating voltage roughly 2.0–5.5 V
- Various code-protection options available
- Suitable for mixed-signal applications with integrated ADC and multiple peripherals

Package

The PIC16F874-04/PQ is in a 40-pin Plastic DIP (PDIP) package.

Pinout

- Pin count: 40 pins (DIP40 / 40-pin package)
- Function: PIC16F874-04/PQ is an 8-bit microcontroller with on-chip flash memory, RAM and EEPROM, plus versatile peripherals (ADC, timers, CCP/PWM, MSSP for SPI/I2C, EUSART) suitable for embedded control applications.

Manufacturer

- Manufacturer: Microchip Technology Inc.
- What kind of company: A US-based semiconductor company that designs and manufactures microcontrollers (PIC MCUs) and other embedded control solutions, plus analog/memory products and development tools.

Application

Typical applications for PIC16F874-04/PQ include:
- Industrial automation and process control
- Instrumentation and measurement systems (8-channel 10-bit ADC)
- Motor control and robotics (PWM/CCP)
- Data acquisition and sensor interfacing (UART/I2C/SPI)
- Home automation and consumer electronics
- Educational/prototyping projects on a compact, cost-effective 8-bit MCU

Equivalent

Equivalent Microchip devices with the same 40-pin PDIP footprint and similar peripherals: PIC16F873A-PQ, PIC16F874A-PQ, PIC16F876A-PQ, and PIC16F877A-PQ. These differ mainly in RAM/ROM/ADC features, so choose the closest match by checking the datasheets. For higher performance, consider PIC18F series.