PIC16F1938-I/SP Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
PIC16F1938-I/SP is an 8-bit PIC16 microcontroller with 28KB Flash, 32MHz clock, integrated ADC and DAC, operating from 2.3V to 5.5V. It is housed in a 28-pin PDIP package for easy prototyping and embedded control applications.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F1938-I/SP Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.3539(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
- 32MHz maximum CPU speed with internal oscillator eliminates external crystal in cost-sensitive designs
- 16384-word Flash program memory and integrated ADC/DAC support data-acquisition and control tasks
- 2.3V to 5.5V operating range enables battery-powered and 5V legacy system compatibility
- 28-pin PDIP package simplifies through-hole breadboard prototyping and low-volume production
Applications
The PIC16F1938-I/SP is well suited for embedded control applications such as home appliance motor controllers, industrial sensor interfaces, and consumer product user interface boards. Its integrated ADC and DAC channels allow direct analog signal processing without external conversion ICs, reducing BOM count in data-acquisition nodes. The 32MHz internal oscillator and 28KB Flash provide sufficient compute and storage resources for moderately complex firmware in thermostat, flow meter, and lighting control designs.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SPDIP-28 |
| Factory Lead Time | 6Weeks |
| 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-PDIP-T28 |
| 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 | DIP28,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| 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 | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F1938-I/SP:
RISC Microcontroller, 8-Bit, FLASH, PIC CPU, 32MHz, CMOS, PDIP28
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDIP28
28-pin, 28KB Flash, 2KB RAM, 256 EEPROM, 12-bit DAC, 5-bit DAC, PSMC, OPAmp,
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDIP28
4K Word Flash, 512B RAM, High-Speed Comp, 10-bit ADC, 2 OPAmp, 5 and 8 bit DAC,
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 32MHz, CMOS, PDIP28
Frequently Asked Questions
How much Flash program memory does the PIC16F1938-I/SP provide and is it sufficient for typical embedded control firmware?
The PIC16F1938-I/SP includes 16384 words (approximately 28KB) of Flash program memory, which accommodates moderately complex firmware including communication stacks, sensor drivers, and control algorithms. This is ample for motor controllers, sensor nodes, and human-machine interface routines common in 8-bit embedded designs.
At what maximum clock frequency does the PIC16F1938-I/SP operate and does it require an external crystal?
The PIC16F1938-I/SP runs at up to 32MHz and includes an internal oscillator, so most applications can operate without an external crystal. This simplifies PCB layout by eliminating oscillator components, and still meets timing requirements for UART, SPI, and I2C communication at standard baud rates like 115200 bps.
Which sensor interface applications leverage the built-in ADC and DAC of the PIC16F1938-I/SP most effectively?
Temperature sensing, pressure monitoring, and analog control loops benefit most because both analog-to-digital conversion and digital-to-analog output are available on-chip. A thermostat design, for example, can read a 10-bit ADC sensor value and simultaneously output a DAC voltage to drive a proportional heating element, all without external conversion ICs and from a 3.3V supply.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.3539 | $2.35 |
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