PIC16C56A-04/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC16C56A-04/SO is an 8-bit OTP microcontroller in SOIC-18 package running up to 4 MHz. It features the PIC16 CPU core with 1024 words of program memory and 25 bytes RAM, suited for simple embedded control and automation tasks requiring minimal peripheral overhead.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16C56A-04/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8900(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 PIC16C56A-04/SO?
- 8-bit PIC16 RISC CPU core running up to 4 MHz
- 1024 words of OTP program memory for reliable one-time code storage
- 25 bytes of on-chip data RAM
- SOIC-18 package with 12 available I/O pins for compact board designs
- Low power consumption ideal for battery-powered embedded applications
- Wide operating voltage range for flexible power supply designs
What is PIC16C56A-04/SO used for?
The PIC16C56A-04/SO targets simple embedded control tasks such as home appliance control, sequential relay switching, and basic timer-based functions where minimal program memory suffices. Its SOIC-18 footprint and 12 I/O pins allow direct connection to switches, LEDs, and sensors in low-cost consumer products. The 4 MHz PIC16 core offers sufficient processing speed for simple state machines and low-frequency signal processing applications.
What are the specifications of PIC16C56A-04/SO?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-18 |
| Factory Lead Time | 5Weeks |
| Date Of Intro | 1990-01-01 |
| YTEOL | 3 |
| Has ADC | NO |
| 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 I/O Lines | 12 |
| Number of Timers | 1 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 12 |
| 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) | 25 |
| RAM (words) | 25 |
| ROM (words) | 1024 |
| ROM Programmability | OTPROM |
| Speed | 4MHz |
| Supply Current-Max | 2.4mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| 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 PIC16C56A-04/SO datasheet?
PIC16C56A-04/SO Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16C56A-04/SO?
Compatible alternatives and drop-in replacements for PIC16C56A-04/SO:
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDSO18
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDSO18
RISC Microcontroller, 8-Bit, OTPROM, PIC16 CPU, 4MHz, CMOS, PDSO18
Frequently Asked Questions
How much program memory and data RAM does the PIC16C56A-04/SO provide?
The PIC16C56A-04/SO provides 1024 words of OTP program memory and 25 bytes of on-chip data RAM. These resources are appropriate for simple embedded control routines such as sequential switching, timer-based tasks, and basic sensor reading at up to 4 MHz clock frequency on the 8-bit PIC16 core.
What I/O pin count is available on the PIC16C56A-04/SO and what applications does it fit?
The PIC16C56A-04/SO in SOIC-18 package provides up to 12 I/O pins, sufficient for driving relays, reading digital switches, and controlling indicator LEDs in compact consumer appliances. The 8-bit PIC16 architecture at 4 MHz handles simple sequential control logic without requiring a higher-performance or more expensive microcontroller platform.
Is the PIC16C56A-04/SO suitable as a legacy replacement in designs originally built around early PIC16 devices?
Yes, the PIC16C56A-04/SO is architecturally compatible with early PIC16 family devices, sharing the same 8-bit RISC core, 4 MHz maximum clock, and SOIC-18 pin-out conventions. Designers maintaining legacy boards can drop in the PIC16C56A-04/SO without layout changes, preserving 12 I/O pins and 1024 words of OTP program memory in a direct package-compatible footprint.
Related Guides
How to Choose the ICL7660ACPAZ or an Alternative: Charge-Pump Selection Guide
Choose the ICL7660ACPAZ or a compatible charge-pump alternative by comparing load, droop, ripple, package, and sourcing requirements.
Jul 26, 2026
150141VS73100 Violet SMD LED Indicator Design Guide
Design the 150141VS73100 violet 3528 SMD LED for reliable indication with current, thermal, optical, PCB, PWM, and sourcing guidance.
Jul 26, 2026
LM5156QDSSRQ1 Automotive Boost Controller Design Guide
Practical LM5156QDSSRQ1 automotive boost design guidance covering operating points, magnetics, MOSFET stress, compensation, layout, and validation.
Jul 24, 2026
EEEFK1H470XP Selection Guide: Choosing a 50 V SMD Aluminum Capacitor
Choose EEEFK1H470XP and related 50 V SMD aluminum capacitors by capacitance, ripple current, ESR, life, and layout constraints.
Jul 24, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.2500 | $2.25 |
| 100+ | $2.0900 | $209.00 |
| 1000+ | $1.9700 | $1970.00 |
| 5000+ | $1.8900 | $9450.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit