PIC16C716T-04/SO - 8-bit 4MHz OTP MCU, 3.5KB, 13 I/O | Microchip
MPN: PIC16C716T-04/SO β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.78 | $27.80 |
| 100 | $2.42 | $242.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $1.95 | $1,950.00 |
PIC16C716T-04/SO Overview
An OTP-based PIC microcontroller is a member of the PIC16 family of 8-bit microcontrollers, part of the broader Microchip PIC (Peripheral Interface Controller) product family. Within the embedded system hierarchy, a PIC16C7xx OTP MCU belongs to the Microcontroller Unit (MCU) class, itself a sub-category of microcontrollers within Integrated Circuits > Microcontrollers. These devices execute a reduced instruction set (RISC) of 35 single-word instructions, delivering deterministic 200 ns instruction cycles at the maximum 20 MHz clock input - a fundamental advantage for embedded control loops.
Key features include an internal 4 MHz RC oscillator (in -04 variants) for clock-free operation, an 8-level-deep hardware stack for sub-routine nesting, an interrupt controller capable of handling up to 7 internal/external interrupt sources, an 8-bit Timer0 with 8-bit prescaler, and a 16-bit Timer1. The integrated ADC and CCP module make the PIC16C716T-04/SO well-suited for closed-loop analog control applications such as sensor conditioning, motor control, and PWM-driven actuator stages.
Typical applications include appliance control boards, sensor interface front-ends, low-cost power-supply housekeeping blocks, automotive body controllers (non-safety), and industrial control modules. The combination of OTP memory (low unit cost in production volumes), an on-chip ADC, and CCP-driven PWM allows designers to consolidate analog sensing and digital actuation into a single 18-pin device.
When designing with this part, engineers should note that OTP memory is not re-programmable - firmware must be fully validated before commitment. The commercial temperature range (0C to +70C) and 5V supply requirement limit deployment in harsh environments; for industrial-grade, automotive-grade, or flash-reprogrammable equivalents, consult the PIC16F716 or PIC16C716-I variants respectively.
This page synthesizes distributor pricing, same-family Microchip drop-in alternatives, and practical design guidance not found on individual distributor listings, helping engineers evaluate the PIC16C716T-04/SO against flash-based PIC16F replacements and same-package PIC16C7xx siblings.
Drop-in alternatives for PIC16C716T-04/SO β 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 PIC16C716T-04/SO (same form factor and footprint) β differing in ADC, Package, Timers, I/O Pins, Program Memory Type.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16C716-04/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16C716-04I/SO
β Drop-Inβ In Stock
$2.18 / Unit
View Datasheet βPIC16C715-04/SO
β Drop-Inβ In Stock
$2.18 / Unit
View Datasheet βPIC16F716-I/SO
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16C716T-04/SO Maximum Ratings & Electrical Characteristics
| Device Family | PIC16C7xx (PIC16C716) |
| Core | 8-bit PIC RISC CPU |
| Instruction Set | 35 single-word instructions |
| Maximum Clock Frequency | 20 MHz (4 MHz for -04 speed grade) |
| Instruction Cycle | 200 ns at 20 MHz clock |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 3.5 KB (2K x 14 words) |
| Data RAM | 128 bytes |
| Data EEPROM | Not present (OTP only) |
| I/O Pins | 13 |
| ADC | Multi-channel A/D Converter |
| PWM/CCP | Capture/Compare/PWM module |
| Timers | Timer0 (8-bit) and Timer1 (16-bit) |
| Operating Voltage | 5 V nominal (typical PIC16C range) |
| Package | 18-SOIC (SO), 300 mil |
| Operating Temperature | 0C to +70C (Commercial, blank speed grade) |
| Mounting Type | Surface Mount |
| Compliance | RoHS compliant per distributor listings |
PIC16C716T-04/SO Pin Configuration
| Pin 1 | MCLR/VPP β Master Clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0 β PORTA bit 0 / Analog input 0 |
| Pin 3 | RA1/AN1 β PORTA bit 1 / Analog input 1 |
| Pin 4 | RA2/AN2 β PORTA bit 2 / Analog input 2 |
| Pin 5 | RA3/AN3/VREF β PORTA bit 3 / Analog input 3 / ADC voltage reference |
| Pin 6 | RA4/T0CKI β PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/SS/AN4 β PORTA bit 5 / SPI Slave Select / Analog input 4 |
| Pin 8 | VSS β Ground reference |
| Pin 9 | OSC1/CLKIN β Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKOUT β Oscillator crystal output / clock output |
| Pin 11 | RC0/T1OSO β PORTC bit 0 / Timer1 oscillator output |
| Pin 12 | RC1/T1OSI β PORTC bit 1 / Timer1 oscillator input |
| Pin 13 | RC2/CCP1 β PORTC bit 2 / Capture Compare PWM channel 1 |
| Pin 14 | RC3 β PORTC bit 3 |
| Pin 15 | RC4 β PORTC bit 4 |
| Pin 16 | RC5 β PORTC bit 5 |
| Pin 17 | RC6 β PORTC bit 6 |
| Pin 18 | VDD β Positive supply (5V nominal) |
Typical Applications
PIC16C716T-04/SO is suitable for 6 applications: Appliance Control Board, Sensor Interface Front-End, Low-Cost Power Supply Housekeeping, Automotive Body Controller (Non-Safety), Industrial Control Module, PWM-Driven LED Driver.
Appliance Control Board
The PIC16C716T-04/SO fits appliance control boards where its 4 MHz instruction cycle (200 ns) easily meets the timing demands of relay drivers, button debounce, and discrete sensor sampling. With 13 I/O pins the part can directly interface mechanical switches, LED indicators, triac-driven AC loads, and a few potentiometer inputs. The on-chip ADC reads temperature or pressure sensors, while the CCP module generates PWM for variable-speed motor control (fan, pump). OTP memory keeps unit cost low in high-volume white goods, and the 18-SOIC footprint supports automated SMT assembly lines. Power consumption at 5V and 4 MHz is well within the thermal budget for a sealed appliance enclosure. Use RC oscillator variants for cost-sensitive SKUs.
Recommended
Sensor Interface Front-End
For sensor interface front-ends, the PIC16C716T-04/SO delivers an integrated ADC plus 13 digital I/O in a single 18-SOIC package, eliminating the need for a separate signal-conditioning IC. The PIC RISC core at 4 MHz comfortably runs linearization routines, moving-average filters, and serial output protocols to a host processor. With 3.5 KB OTP memory, calibration coefficients and lookup tables are co-resident with the main code. The CCP module generates accurate timing pulses for ultrasonic or capacitive distance sensors. The 5V supply and 0C to +70C commercial range suit indoor HVAC and building-automation sensor pods. For outdoor use, upgrade to PIC16F716-I/SO or PIC16C716-04I/SO with industrial temperature.
Recommended
Low-Cost Power Supply Housekeeping
In switch-mode power supplies, the PIC16C716T-04/SO serves as a housekeeping MCU - monitoring auxiliary voltages via the on-chip ADC, controlling fan speed through the CCP/PWM module, sequencing power-good LEDs, and communicating fault status via GPIO. With 13 I/O pins the part can drive optocouplers, I2C EEPROMs, and front-panel indicators without external glue logic. The 4 MHz instruction cycle is more than adequate for slow housekeeping loops (1 ms or longer), and the 3.5 KB OTP memory stores state machines, fault logging, and PMBus-like command handling. Industrial-grade PIC16C716-04I/SO handles higher-temperature SMPS environments. Use the MCP1700 LDO for stable 5V rail.
Recommended
Automotive Body Controller (Non-Safety)
Body-electronics modules such as window lift controllers, mirror adjusters, and interior lighting drivers can use the PIC16C716T-04/SO where AEC-Q100 is not required. The 13 I/O pins handle multiple switch inputs and H-bridge direction signals, while the ADC reads current-sense amplifiers for stall detection. The CCP module drives PWM for soft-start of DC motors. The commercial 0C to +70C range covers cabin environments but excludes under-hood deployment; for that, designers should specify the industrial PIC16C716-04I/SO or qualified AEC-Q100 PIC16F716 variants. The 18-SOIC package is well-supported by automotive EMS lines.
Recommended
Industrial Control Module
Industrial control modules benefit from the PIC16C716T-04/SO's integrated ADC and CCP peripherals that close analog and PWM control loops in a single 18-SOIC device. The 4 MHz core runs PID controllers for valve actuators, conveyor speed regulators, and small-pump pressure regulators, while 128 bytes RAM hold a few process variables. The 3.5 KB OTP memory stores configuration constants and run-time state machines. Industrial-temperature deployments should select the PIC16C716-04I/SO (-40C to +85C) instead of the blank-speed-grade commercial part. The PIC RISC architecture offers deterministic interrupt response critical for control loops. The 18-SOIC package enables compact DIN-rail module form factors.
Recommended
PWM-Driven LED Driver
The PIC16C716T-04/SO's CCP module generates precise PWM signals suitable for driving high-brightness LED strings via external MOSFETs. With 4 MHz clock and 200 ns instruction cycle, PWM frequencies above 1 kHz are achievable with 8-bit resolution, eliminating visible flicker in architectural and signage lighting. The 13 I/O pins support multiple LED channels, button inputs, and DMX-style receive logic. The on-chip ADC reads ambient light sensors for closed-loop brightness control, while 3.5 KB OTP memory holds color-mixing curves. Industrial temperature grade (PIC16C716-04I/SO) extends deployment to outdoor fixtures. Use logic-level MOSFETs to keep BOM cost low.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C716T-04/SO β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C716-04/SO | PIC16C716-04I/SO | PIC16C715-04/SO | PIC16F716-I/SO |
|---|---|---|---|---|---|
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 3.5 KB Flash (reprogrammable) |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz (20 MHz speed grade) |
| I/O Pins | 13 | 13 | 13 | 13 | 13 |
| ADC | Multi-channel A/D Converter | Multi-channel A/D Converter | Multi-channel A/D Converter | No ADC (only comparators) | Multi-channel 8-bit A/D Converter |
| CCP/PWM Module | Yes (1x CCP1) | Yes (1x CCP1) | Yes (1x CCP1) | Yes (1x CCP1) | Yes (1x Enhanced CCP) |
| Operating Temperature | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) |
| Packaging Format | Tape & Reel (T suffix) | Tube | Tube | Tube | Tube |
Key Differentiators
- Tape & Reel format optimized for SMT assembly (vs PIC16C716-04/SO)
- Industrial temperature range option (vs PIC16C716T-04/SO)
- Flash memory for in-circuit reprogramming (vs PIC16F716-I/SO)
Design Notes
The PIC16C716 uses One-Time Programmable (OTP) EPROM - firmware bugs that are programmed into the device cannot be erased. Production firmware must be fully validated on PIC16F716 flash prototypes or on a windowed PIC16C716-JW emulation device before committing to OTP. Plan a PIC16F716 fall-back for any pilot run to allow last-minute code fixes without scrapping parts.
The PIC16C716T-04/SO is rated for a nominal 5V supply (per the PIC16C7xx family typical VDD range). Brown-out detection must be implemented in firmware by monitoring an ADC channel tied to VDD via a divider, because the older PIC16C716 silicon does not include the later BOR (Brown-Out Reset) module. Add a 100 nF decoupling capacitor close to the VDD pin and a 10 uF bulk capacitor at the regulator output to handle inrush from the ADC sample-and-hold.
When using the ADC, place the analog VDD and VSS traces away from the digital CCP1 PWM output pin (RC2) to avoid digital switching noise coupling into the analog inputs. A ground plane divided into analog and digital sections, joined at a single point under the MCU VSS pin, significantly improves ADC SNR. Reference the ADC from VDD (RA3 left as analog VREF+) when absolute accuracy is sufficient; for ratiometric measurements, drive VREF+ with the sensor bridge excitation voltage.
Compliance Information
RoHS and REACH compliance noted on distributor listings; AEC-Q100 not qualified (use PIC16F716-I/SO automotive grade for that). Halogen-free status not explicitly stated in retrieved data.
