PIC16C71-04/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip PIC16C71-04/P is an 8-bit PIC microcontroller with 4 MHz maximum clock and 1K x 14-word EPROM program memory. It integrates a 4-channel 8-bit ADC and 18 I/O pins in a DIP-18 through-hole package. Available from stock worldwide for legacy embedded control and data acquisition replacement designs.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16C71-04/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1980(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC16 RISC core at up to 4 MHz with 35 single-word instructions and 1K x 14-word EPROM program memory
- 4-channel 8-bit on-chip ADC enabling direct analog sensor signal acquisition without external converter ICs
- 18-pin PDIP through-hole package simplifying prototype assembly and field repair on legacy industrial control boards
- Low-power SLEEP mode with watchdog timer for battery-backed standby operation in remote sensor nodes
Applications
The PIC16C71-04/P is used in legacy industrial control panels and embedded instruments originally designed in the 1990s requiring direct pin-compatible replacement parts. Its 4-channel 8-bit ADC makes it suitable for simple temperature, pressure, and position sensor readout systems operating from 4.5 V to 5.5 V supply. The device also serves low-volume prototype and educational development platforms where DIP-18 through-hole packaging allows breadboard assembly.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-18 |
| Factory Lead Time | 6Weeks |
| 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 | R-PDIP-T18 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 13 |
| Number of Timers | 3 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP18,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 36 |
| ROM (words) | 1024 |
| ROM Programmability | OTPROM |
| Speed | 4MHz |
| Supply Current-Max | 30mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16C71-04/P:
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDIP18
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDIP18
Frequently Asked Questions
What ADC resolution and channel count does the PIC16C71-04/P provide for analog sensor reading?
The PIC16C71-04/P integrates a 4-channel, 8-bit successive approximation ADC with a conversion time of approximately 20 µs at 4 MHz clock. The 8-bit resolution provides 256 discrete steps across the 0 V to VDD reference range, giving approximately 19.5 mV per LSB at a 5 V supply, sufficient for rough temperature and pressure monitoring without an external ADC chip.
For a legacy board repair, how compatible is PIC16C71-04/P with other 18-pin PIC16 family members?
The PIC16C71-04/P uses the standard 18-pin PDIP footprint shared by PIC16C54, PIC16C56, and early PIC16F84 devices. While pin assignments are mostly compatible, the C71 adds 4-channel ADC inputs on Port A pins that the PIC16C5x series lacks. Firmware must be re-assembled for the target device since instruction memory is EPROM-based and requires UV erasure for reprogramming, unlike Flash-based successors.
What programming method does the PIC16C71-04/P use and how does it affect production programming throughput?
The PIC16C71-04/P uses one-time-programmable or UV-erasable EPROM requiring a dedicated programmer such as the Microchip PRO MATE II or a compatible gang programmer. UV erasure for reprogramming takes approximately 15 to 20 minutes under a 253 nm UV lamp at 12 mW/cm² intensity. In production, OTP variants eliminate erasure time, but the single-program constraint means defective firmware requires scrapping the device, unlike Flash-based PIC16F parts.
Can PIC16C71-04/P operate in systems where the supply voltage drops below 4.5 V during brownout conditions?
The PIC16C71-04/P is specified for operation from 4.5 V to 5.5 V supply, and operation below 4.5 V is outside the guaranteed specification range. Below this threshold, the 4 MHz oscillator may become unstable and the 8-bit ADC reference accuracy degrades proportionally with supply voltage. Adding an external brownout reset circuit that holds MCLR low below 4.2 V prevents erratic program execution during supply transients.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1980 | $1.20 |
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