PIC16C74A-04/L Microchip Integrated Circuit (Plastic Leaded Chip Carrier) In Stock
Microchip PIC16C74A-04/L is an 8-bit PIC16 OTP microcontroller with 4 MHz clock, 4 KB program memory, 192 bytes RAM, 8-channel 8-bit ADC, and I2C/SPI peripherals in a 44-pin PLCC package. Available in stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Plastic Leaded Chip Carrier
- Pin Count
- 44
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16C74A-04/L Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $8.7300(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 MHz OTP (one-time programmable) architecture enabling cost-effective high-volume production without mask ROM setup fees
- 8-channel 8-bit ADC providing multi-sensor analog acquisition for legacy industrial measurement and control applications
- I2C and SPI MSSP peripheral facilitating communication with external EEPROMs, sensors, and display drivers
- 44-pin PLCC package with 33 I/O pins suitable for dense legacy board designs requiring through-hole socket mounting
Applications
The PIC16C74A-04/L is used in legacy industrial controllers, OTP-programmed consumer appliances, and replacement boards for end-of-life systems that must match original firmware binaries exactly. Its 8-channel ADC enables direct connection to resistive sensors, thermistors, and potentiometers for analog control panels. Socket-mounted PLCC-44 boards benefit from field-replaceable programming during manufacturing rework, reducing scrap rates compared to surface-mount only alternatives.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PLCC-44 |
| Date Of Intro | 1990-01-01 |
| YTEOL | 3 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 4MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-J44 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 33 |
| Number of Serial I/Os | 1 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LDCC44,.7SQ |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Qualification Status | Not Qualified |
| RAM (bytes) | 192 |
| ROM (words) | 4096 |
| ROM Programmability | OTPROM |
| Speed | 20MHz |
| Supply Current-Max | 5mA |
| Supply Voltage-Max | 6V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | J BEND |
| Terminal Pitch | 1.27mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Plastic Leaded Chip Carrier |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16C74A-04/L:
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 20MHz, CMOS, PQCC44
Frequently Asked Questions
What program memory type does PIC16C74A-04/L use, and how does that affect high-volume production economics?
PIC16C74A-04/L uses OTP (one-time programmable) EPROM with 4 KB capacity, meaning each device is programmed once during manufacturing. For high-volume runs of thousands of identical units, OTP avoids the per-unit re-programming cost of Flash-based devices while keeping unit price low compared to custom mask ROM production minimums.
How many analog input channels does PIC16C74A-04/L provide, and what is the ADC resolution?
The device features an 8-channel multiplexed ADC with 8-bit resolution, providing 256 discrete output codes per channel. This is sufficient for temperature sensing with NTC thermistors, potentiometer-based position feedback, and battery voltage monitoring in legacy control systems operating at 4 MHz.
For a legacy system retrofit, what advantage does the PLCC-44 socket of PIC16C74A-04/L offer during repair?
The 44-pin PLCC package seats in a standard ZIF or fixed socket, allowing field technicians to replace a programmed device in under 1 minute without soldering. This is valuable in industrial retrofit scenarios where 33 I/O lines must be preserved and replacement chips are pre-programmed with identical OTP firmware images.
Which communication peripherals does PIC16C74A-04/L include for connecting to external memory or sensor ICs?
PIC16C74A-04/L includes an MSSP module supporting both I2C (up to 400 kHz) and SPI (up to 4 MHz at full clock), plus a USART for async serial communication. These 3 interfaces cover the majority of industrial sensor and memory protocols, enabling expansion with external EEPROM, RTC, and display driver ICs without additional glue logic.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $11.6400 | $11.64 |
| 5+ | $8.7300 | $43.65 |
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