ATTINY87-XUR
ATTINY87-XUR - 16MHz 8-Bit AVR with LIN | Microchip (Tape & Reel)
The Microchip Technology ATTINY87-XUR is a low-power, 8-bit AVR RISC microcontroller with 8 KB of ISP Flash memory, 512 B of EEPROM, 512 B of SRAM, 16 general-purpose I/O lines, and a 16 MHz operating speed. The device includes an on-chip LIN controller and is supplied in a 20-pin TSSOP package. Its combination of compact memory, serial connectivity, and 16 I/O lines makes it suitable for embedded control, automotive accessories, sensor nodes, and small actuator systems.
An 8-bit AVR microcontroller is a compact embedded processor in the hierarchy of microcontrollers, embedded processors, and semiconductor control devices. The AVR architecture uses a RISC instruction set and general-purpose working registers to execute control and communication firmware efficiently. ATTINY87-XUR belongs to the ATtiny family and targets designs that need more connectivity than a basic minimal AVR while retaining a small 20-pin surface-mount footprint.
Verified device features include 8 KB of In-System Programmable Flash, 512 B of nonvolatile EEPROM, 512 B of SRAM, 32 8-bit general-purpose working registers, an 8-bit timer/counter with compare modes, and 16 I/O lines. The manufacturer describes 123 powerful instructions, with most completing in a single clock cycle. Its integrated LIN controller supports communication designs where a dedicated network interface would otherwise increase component count.
The ATTINY87 family uses Microchip AVR firmware tools and programming workflows. The verified results identify MPLAB Snap support using a High-Speed USB 2.0 computer interface, an 8-pin single-in-line connector to the target, and two device I/O pins plus the reset line for in-circuit debugging and In-Circuit Serial Programming. This makes firmware programming and debug access practical during prototype bring-up and production programming.
Typical applications include LIN-connected automotive accessories, compact sensor interfaces, actuator controllers, building and industrial control nodes, low-power embedded instruments, and communication modules. In each case, the 16 MHz core, 8 KB program memory, and integrated serial interfaces reduce the need for external digital components.
A key design consideration is selecting the correct package, pin mapping, clock arrangement, programming interface, and operating voltage before laying out a production PCB. Because the supplied excerpts do not include the complete pin table, voltage ranges, electrical limits, ADC details, or LIN timing values, those items must be verified in the official ATTINY87 documentation before release to manufacturing.
This page consolidates manufacturer facts, distributor listings, package information, connectivity details, and application guidance. It also clearly identifies where complete pinout, electrical, pricing, lifecycle, and drop-in replacement data were not available in the verified excerpts, helping engineers separate confirmed specifications from information that still requires datasheet review.
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