PIC16C554-04/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC16C554-04/SO is an 8-bit PIC16 family EPROM-based microcontroller from Microchip running at up to 4 MHz and operable down to 3.0 V minimum supply in an 18-pin SOIC package. It suits cost-sensitive embedded control applications requiring one-time or field-programmable EPROM. Available from stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16C554-04/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.2200(MOQ 1)
- 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 PIC16C554-04/SO?
- 8-bit PIC16 EPROM core at up to 4 MHz with 3.0 V minimum supply enables low-voltage embedded control in battery-operated and low-power applications
- EPROM program memory allows field reprogramming under UV erasure, supporting prototyping, small-batch production, and firmware updates in legacy industrial systems
- 18-pin SOIC-18 RoHS-compliant through-hole-compatible SMT package simplifies board assembly while maintaining compatibility with socket-based prototyping fixtures
What is PIC16C554-04/SO used for?
The PIC16C554-04/SO is suited for simple embedded control tasks in appliances, consumer electronics, and industrial equipment where an 8-bit EPROM microcontroller with minimal I/O and low power consumption at 3.0 V is sufficient. It is commonly found in legacy system maintenance, field reprogrammable control modules, and cost-sensitive OEM designs where the mature PIC16 instruction set reduces firmware development time. The 4 MHz SOIC package also fits space-constrained PCB replacements for aging DIP-based controller boards.
What are the specifications of PIC16C554-04/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-18 |
| Reach Compliance Code | Compliant |
| Date Of Intro | 1990-01-01 |
| YTEOL | 3 |
| Has ADC | NO |
| Additional Feature | ALSO OPERATES AT 4MHZ AT 3.0V MIN SUPPLY |
| 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-PDSO-G18 |
| 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 Program ROM Width | 14 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP18,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 80 |
| ROM (words) | 512 |
| ROM Programmability | OTPROM |
| Screening Level | TS 16949 |
| Speed | 4MHz |
| 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 | Small Outline Packages |
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 PIC16C554-04/SO datasheet?
PIC16C554-04/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16C554-04/SO?
Compatible alternatives and drop-in replacements for PIC16C554-04/SO:
Frequently Asked Questions
At what minimum supply voltage can the PIC16C554-04/SO operate and what does this enable in battery-powered designs?
The PIC16C554-04/SO operates at a minimum supply voltage of 3.0 V at 4 MHz, allowing it to run directly from 2-cell AA alkaline batteries or a single lithium coin cell near end-of-life. This low voltage floor extends battery life in remote sensors, handheld tools, and simple control panels by reducing the minimum usable battery capacity threshold before the system shuts down.
How does EPROM program memory in the PIC16C554-04/SO differ from OTP and flash microcontrollers for prototyping and small batch production?
EPROM memory in the PIC16C554-04/SO can be erased with UV light and reprogrammed multiple times, unlike OTP (one-time programmable) parts that cannot be revised. This makes it practical for prototyping runs of under 100 units where firmware changes between revisions are likely, and for field repair of legacy equipment where UV erasure is still feasible, though it is slower to erase than flash-based PIC devices.
For a legacy industrial control board replacement using the PIC16C554-04/SO, what I/O and processing limitations should designers expect?
The PIC16C554-04/SO is an 8-bit PIC16 core with no on-chip ADC and a limited number of digital I/O pins in an 18-pin package. Designers should not expect analog measurement capability, and the 4 MHz clock limits instruction throughput to approximately 1 million instructions per second, suitable for simple state machines, timer-based control, and serial communication but not for computationally intensive signal processing tasks.
When is the PIC16C554-04/SO at 4 MHz a suitable choice over a modern PIC16F flash device for a cost-constrained replacement design?
The PIC16C554-04/SO is a practical replacement when the legacy PCB layout and connector pinout are already optimized for an 18-pin SOIC footprint and the firmware is already proven in production. Its 4 MHz EPROM architecture matches the original timing budget without redesign, and if flash parts are backordered or priced higher, the EPROM variant can serve as a direct pin-compatible substitute for 8-bit control functions requiring no ADC.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.8200 | $3.82 |
| 25+ | $3.6800 | $92.00 |
| 40+ | $3.5600 | $142.40 |
| 100+ | $3.5100 | $351.00 |
| 150+ | $3.4400 | $516.00 |
| 1000+ | $3.2200 | $3220.00 |
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