PIC16C66-10/SO Microchip Integrated Circuit (Other) In Stock
Microchip PIC16C66-10/SO is an 8-bit EPROM-based microcontroller with integrated analog comparators, running at up to 10 MHz in a 28-pin SOIC package. It features the PIC16 RISC core with 368 bytes of RAM and 8KB program memory. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Other
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16C66-10/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.3900(MOQ 54)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC16C66-10/SO?
- EPROM-based program storage enabling one-time or UV-erasable field programming for prototype and small-volume production
- Dual analog comparators integrated on-chip eliminating external op-amp components in signal-conditioning applications
- PIC16 RISC core at up to 10 MHz delivering 2.5 MIPS for efficient execution of simple control algorithms
- 28-pin SOIC package offering easy hand-soldering and board-level rework during prototyping phases
- Low-cost architecture with 368 bytes RAM and 8KB program memory suited for fixed-function embedded controllers
What is PIC16C66-10/SO used for?
The PIC16C66-10/SO is used in legacy industrial controllers, appliance timers, and simple automation nodes where EPROM-based reprogramming during development is preferred over one-time-programmable OTP devices. Its dual on-chip comparators make it attractive for level-detection circuits, battery charge indicators, and motor over-current protection without adding external analog ICs. The compact 28-pin SOIC footprint fits replacement boards and retrofit designs that must match existing PCB layouts from the 1990s through today.
What are the specifications of PIC16C66-10/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Date Of Intro | 1993-07-01 |
| YTEOL | 3 |
| Has ADC | NO |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 10MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 22 |
| Number of Serial I/Os | 4 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 368 |
| ROM (words) | 8192 |
| ROM Programmability | EPROM |
| Screening Level | TS 16949 |
| Speed | 10MHz |
| Supply Current-Max | 20mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Where can I find the PIC16C66-10/SO datasheet?
PIC16C66-10/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16C66-10/SO?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the EPROM program memory in PIC16C66-10/SO differ from Flash-based PIC devices in a prototype workflow?
PIC16C66-10/SO uses UV-erasable EPROM storing up to 8KB of program code, so reprogramming requires a UV eraser exposure typically lasting 15 to 20 minutes before rewriting. Flash-based PICs erase electrically in milliseconds, making EPROM devices slower to iterate but useful where proven, stable program images are standard practice.
What analog comparator performance can designers expect from the built-in comparators in PIC16C66-10/SO?
The two integrated analog comparators provide input threshold detection without an external op-amp, with response times typically under 200 ns. They can monitor voltages against an internal voltage reference or external reference pin, covering supply rails from 2V to 6V and supporting basic signal-conditioning tasks within the 8-bit PIC16 architecture.
For a legacy product refresh, when is PIC16C66-10/SO a viable pin-compatible alternative to older ceramic-DIP versions?
PIC16C66-10/SO in SOIC-28 is electrically compatible with DIP-28 PIC16C66 variants at the same 10 MHz clock and 2.5 MIPS throughput, making it a direct pin-function substitute when migrating a through-hole PCB to surface-mount. Designers only need to verify the 5V supply headroom and EPROM programming voltage tolerance match the target board's design margins.
Which low-complexity embedded applications benefit most from the PIC16C66-10/SO's architecture?
Applications requiring fewer than 8KB of code such as appliance timers, relay sequencers, and 4-channel analog threshold monitors benefit most, since the 368 bytes of RAM and 8KB EPROM cover the entire state machine without external memory. Running at 10 MHz clock, the device handles 100 µs interrupt service routines comfortably for debounce and simple PWM generation.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
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| 54+ | $7.2500 | $391.50 |
| 100+ | $7.0400 | $704.00 |
| 1000+ | $6.6500 | $6650.00 |
| 5000+ | $6.3900 | $31950.00 |
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