Semtech Corporation XE8807AMI026TLF

Overview

XE8807AMI026TLF from Semtech is an ultra-low-power, low-voltage microcontroller-based Radio Machine designed for RF companion and system supervision roles in battery-constrained applications. It features a CoolRISC816 CPU core delivering up to 7 MIPS, 11 kB (4 kW) MTP program memory, 520 B RAM, and the proprietary BitJockey™ RF interface peripheral. It operates across 1.2–5.5 V supply and achieves 1 µA time-keeping current at 32 kHz.

For engineers reviewing the XE8807AMI026TLF datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, TQFP-32 package mapping, real-world use cases in metering and HVAC control, and two validated alternative parts with functional and application-level distinctions.

Technical Context

The XE8807AMI026TLF integrates a CoolRISC816 8-bit RISC CPU with 16 internal registers and single-cycle instruction execution, including 8×8 multiply. Its clock system supports independent RC and crystal oscillators, enabling flexible low-power timing modes - including HALT with 32 kHz wake-up (1.9 µA) and immediate-wake timekeeping (35 µA).

It implements four low-power analog comparators, five reset sources, 15 interrupt vectors, and eight event sources. The BitJockey™ peripheral provides hardware-accelerated RF frame synchronization and coding/decoding, while UART and USRT support standard serial communication - all accessible via multiplexed I/O on Ports A, B, and D.

Key Specifications

Pinout & Package

TQFP-32 package with 5 mm × 5 mm body, 0.8 mm pitch, and exposed thermal pad (not electrically connected). Pin functions are fully multiplexed across Ports A, B, and D; configuration is software-selectable per pin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power RF microcontroller applications.

Compared with EFM32ZG108F16 and MSP430FR2355, the XE8807AMI026TLF uniquely integrates BitJockey™ for zero-CPU-overhead RF framing - making it optimal for cost-sensitive, battery-limited RF companion roles where protocol offload directly extends operational lifetime.

Availability

XE8807AMI026TLF is available at Aetrix Electronics and suitable for smart metering, HVAC remote supervision, and portable diagnostic instrument applications requiring stable component supply and long-term lifecycle assurance.

Supply support for XE8807AMI026TLF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Semtech Corporation is a U.S.-based semiconductor company specializing in high-performance analog and mixed-signal semiconductors for infrastructure, IoT, and precision sensing markets.

The XE8800 series was designed specifically as ultra-low-power Radio Machines for RF companion and system supervision in battery-operated utility, industrial, and consumer devices - prioritizing sub-µA sleep, hardware-accelerated RF, and wide-voltage operation.

FAQ

What is the maximum guaranteed operating speed of the XE8807AMI026TLF at 3.3 V and 85°C?

The XE8807AMI026TLF guarantees up to 5.5 MIPS at 3.3 V and 85°C, as confirmed in Figure 2-4 of the official datasheet. This speed is enabled by its 4 kW MTP memory architecture and CoolRISC816 core - sufficient to execute BitJockey™ frame processing and sensor polling within tight timing windows without external assistance.

Does the XE8807AMI026TLF support crystal oscillators other than 32 kHz?

Yes, the XE8807AMI026TLF supports both 32 kHz crystals for low-power timekeeping and higher-frequency crystals (e.g., 1 MHz) for full-speed CPU operation, as documented in Section 7 (Clock Generation) and Figure 2-2. The crystal oscillator is fully independent from the RC oscillator, allowing dual-domain timing.

How is the BitJockey™ peripheral used in the XE8807AMI026TLF?

The BitJockey™ peripheral in the XE8807AMI026TLF provides hardware-level RF frame synchronization, Manchester encoding/decoding, and packet delimiting - accessible via dedicated RFIF(0–3) pins on Port D. It operates autonomously, freeing the CPU from bit-level RF protocol handling and reducing active current during transmission.

What is the recommended external capacitor value for the VREG pin on the XE8807AMI026TLF?

The XE8807AMI026TLF requires a 0.8–1.2 µF ceramic capacitor between VREG and VSS, as specified in Table 2-2. A 1.0 µF X7R capacitor placed within 2 mm of the VREG pin ensures stable internal regulation across temperature and load variations - critical for consistent low-power mode behavior.

Can the XE8807AMI026TLF operate from a 1.5 V alkaline cell throughout its discharge curve?

Yes, the XE8807AMI026TLF supports 1.2–5.5 V operation, covering the full discharge range of a 1.5 V alkaline cell (1.5 V down to ~0.9 V nominal, though functional down to 1.2 V). Its internal regulator remains active and stable at 1.5 V, enabling uninterrupted operation in long-life portable instruments.