PIC16F648A-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip PIC16F648A is an 8-bit Flash microcontroller with 4KB program memory, 256B RAM, 16 I/O pins, and USART running at 20 MHz in an 18-pin PDIP package. Features nanoWatt XLP low-power technology. Available from stock worldwide.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F648A-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.0199(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 at 20 MHz with 4KB Flash and 256B RAM in breadboard-friendly 18-pin PDIP package, ideal for rapid prototyping and hobbyist projects
- Hardware USART and two comparators enable direct RS-232 communication and analog signal detection without external interface ICs
- nanoWatt XLP technology delivers deep-sleep current below 1 µA, extending coin-cell and AAA battery life in always-on monitoring devices
Applications
The PIC16F648A is a popular choice for serial communication gateways, keypad decoders, and relay controllers where an 18-pin DIP package suits through-hole prototyping and low-volume production. Its hardware USART and comparators allow direct interfacing to RS-232 drivers and analog threshold detectors without additional glue logic. Hobbyist automation projects, educational training kits, and legacy system replacements rely on its breadboard-compatible pin pitch and 20 MHz performance for reliable low-cost control.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-18 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Has ADC | NO |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDIP-T18 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 16 |
| Number of Timers | 3 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP18,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| RAM (bytes) | 256 |
| ROM (words) | 4096 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 20MHz |
| Supply Current-Max | 3.5mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 5V |
| 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 |
| ## PIC16F648A-I/P Alternates Showing results | Image |
| 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 PIC16F648A-I/P:
suggested
suggested
suggested
suggested
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP18
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDIP18
Frequently Asked Questions
Does PIC16F648A include an ADC, and how should designers handle analog measurements without one?
The PIC16F648A does not include an ADC; it provides 2 analog comparators instead. For applications needing analog-to-digital conversion, designers can use an external SPI or I2C ADC such as the MCP3201 (12-bit, SPI), or implement a simple R-C charge-time measurement with the timer module to derive a pseudo-ADC with approximately 8-bit resolution.
What serial communication standard does PIC16F648A natively support, and at what baud rates?
The PIC16F648A features a hardware USART supporting asynchronous RS-232 communication at standard baud rates from 300 bps up to 115,200 bps at 20 MHz. The USART also supports synchronous SPI-like master/slave operation at up to 5 Mbps, enabling direct connection to serial peripherals without a dedicated SPI module.
For a battery-powered remote sensor, how low can PIC16F648A reduce its sleep current?
Using nanoWatt XLP sleep mode, the PIC16F648A reduces supply current to below 1 µA at 2.0 V, allowing a 220 mAh CR2032 coin cell to sustain standby operation for over 25 years. Periodic wake-ups via the internal watchdog timer at 32 kHz allow sensor readings every few seconds while maintaining average current well below 10 µA.
When would PIC16F648A be preferred over PIC16F628A in a new design?
The PIC16F648A doubles the Flash memory to 4KB versus the PIC16F628A's 2KB, making it the better choice when firmware exceeds 2KB due to USART protocol stacks, menu-driven LCD interfaces, or multi-state machine logic. Both share the same 18-pin PDIP footprint and pinout, so upgrading from PIC16F628A to PIC16F648A requires only a firmware recompile with no PCB changes.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.0199 | $3.02 |
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