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| PartNumber | PIC16F721-I/SS | PIC16F721-I/ML | PIC16F721-I/P |
| Description | 8-bit Microcontrollers - MCU 7 KB FLASH 256 B SRAM, 18 I/O | 8-bit Microcontrollers - MCU 7 KB FLASH 256 B SRAM, 18 I/O | 8-bit Microcontrollers - MCU 7 KB FLASH 256 B SRAM, 18 I/O |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | Through Hole |
| Package / Case | SSOP-20 | QFN-20 | PDIP-20 |
| Series | PIC16(L)F72x | PIC16(L)F72x | PIC16(L)F72x |
| Core | PIC | PIC | PIC |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz |
| Program Memory Size | 4 kB | 4 kB | 7 kB |
| Data RAM Size | 256 B | 256 B | 256 B |
| ADC Resolution | 8 bit | 8 bit | 10 bit |
| Number of I/Os | 18 I/O | 18 I/O | 18 I/O |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tube | Tube |
| Height | 1.75 mm | 0.9 mm | 3.3 mm |
| Length | 7.2 mm | 4 mm | 26.16 mm |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 5.3 mm | 4 mm | 6.35 mm |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Data RAM Type | SRAM | SRAM | SRAM |
| Interface Type | EUSART, I2C, SPI | EUSART, I2C, SPI | AUSART, CCP, I2C, SPI |
| Number of ADC Channels | 12 | 12 | 12 |
| Number of Timers/Counters | 3 Timer | 3 Timer | 3 Timer |
| Processor Series | PIC16 | PIC16 | PIC16 |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 67 | 91 | 22 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 1.8 V | 1.8 V | 1.8 V |
| Tradename | PIC | PIC | PIC |
| Unit Weight | 0.016000 oz | 0.004339 oz | 0.079719 oz |