PIC16F1938-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip PIC16F1938-I/SO is an 8-bit PIC microcontroller with 32 MHz clock, 28 KB Flash memory, and 2.5 V operation in a 28-pin SOIC package, featuring integrated ADC, DAC, and EUSART for versatile embedded control applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F1938-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6447(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC16 core running at up to 32 MHz with 16384 words of Flash program memory
- Integrated 10-bit ADC with multiple input channels and on-chip DAC for analog signal processing
- Low-power operation down to 2.3 V with nanoWatt XLP technology for battery-powered designs
- On-chip EUSART, SPI, and I2C peripherals enabling multi-protocol serial communications
Applications
The PIC16F1938-I/SO is well suited for embedded control applications such as home automation, smart appliances, and industrial sensor nodes where compact size and low power consumption are priorities. Its integrated ADC and DAC make it ideal for analog measurement and signal conditioning tasks, while the EUSART and SPI/I2C interfaces simplify connectivity to external sensors and displays. Designers targeting battery-operated IoT devices and motor control systems benefit from the nanoWatt XLP sleep modes and the 28-pin SOIC form factor.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 32MHz |
| DAC Channels | YES |
| 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 | 25 |
| Number of Serial I/Os | 1 |
| Number of Timers | 8 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| 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) | 1024 |
| ROM (words) | 28672 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 4.1mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.5V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| 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 | 3A991.a.2 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F1938-I/SO:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDSO28
7KB, 512B RAM, 10b ADC, Comparator, 5b DAC, PWMs, CIPs, PMD, TempSensor,
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDSO28
14KB, 1KB RAM, 10b ADC, Comparator, 5b DAC, PWMs, CIPs, PMD, TempSensor,
Frequently Asked Questions
What is the maximum clock frequency of the PIC16F1938-I/SO, and how does it affect processing throughput?
The PIC16F1938-I/SO operates at up to 32 MHz, delivering up to 8 MIPS of single-cycle instruction throughput. This speed is sufficient for real-time sensor sampling at over 100 kHz and responsive PWM generation, making it suitable for motor control and automation tasks without an external oscillator.
Which communication interfaces are built into PIC16F1938-I/SO for connecting external sensors or modules?
The device integrates an EUSART supporting RS-232 and RS-485 up to 1 Mbps, an SPI module running up to 8 MHz, and an I2C interface at up to 400 kHz. These 3 hardware serial ports allow simultaneous connections to sensors, EEPROM, and wireless modules without bit-banging.
How does the PIC16F1938-I/SO compare with PIC16F1936 for designs requiring more program storage?
PIC16F1938-I/SO provides 16384 words (approximately 28 KB) of Flash versus the PIC16F1936's 8192 words (approximately 14 KB), doubling available program space. It also offers 1024 bytes of RAM compared to 512 bytes, enabling more complex algorithms and larger lookup tables in the same 28-pin SOIC footprint.
What supply voltage range does PIC16F1938-I/SO support, and can it operate from a single lithium-ion cell?
PIC16F1938-I/SO operates from 2.3 V to 5.5 V, covering both 3.3 V and 5 V system rails. A single lithium-ion cell discharged to approximately 2.7 V still meets the minimum 2.3 V threshold, allowing battery operation across the full discharge cycle with nanoWatt XLP sleep current below 20 nA.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.6447 | $0.64 |
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.”