A96L416FR

The A96L416 is an advanced 8-bit CMOS microcontroller based on an M8051 core, purpose-built to provide smoke detector and fire alarm systems with a simple, robust, and cost-effective semiconductor solution. It integrates Flash program memory, analog front-end, programmable timers and power management to simplify system design for standalone and networked alarm products.

Designed for embedded alarm applications, the device combines a 4 MHz internal RC oscillator with low-voltage operation and industrial temperature support to deliver reliable performance in battery-powered and mains-powered detector modules.

Key Features

• Core & Performance M8051-compatible 8-bit core with internal RC oscillator (4 MHz ±3% across −40 to +85 °C) and support for operation up to 4 MHz.
• On-chip Memory 16 Kbytes of on-chip FLASH with in-system programming (ISP); 256 bytes internal RAM (iRAM), 256/768 bytes XRAM and 256 bytes data flash for configuration and persistent data.
• Analog Front End 10-bit A/D converter with 7 input channels at up to 72 ksps plus two rail-to-rail operational amplifiers for sensor signal conditioning.
• Timers & PWM Three 16-bit timers (T0/T1/T2), an 8-bit Basic Interval Timer and watchdog timer allow precise timing, pulse generation and supervisory functions.
• Interfaces & Connectivity USART (configurable as UART or 8-bit SPI) and I²C support for communication with peripherals and external modules.
• System Reliability 16-bit CRC/checksum generator, Power-On Reset, multi-level low-voltage reset (1.60/2.20/2.40/2.70 V) and reset release level at 1.4 V.
• Power & Supply On-chip LDO and voltage reference (VBG ≈ 0.92 V) with device operation specified from 2.0 V to 3.6 V, and STOP/IDLE low-power modes for energy-efficient designs.
• Output Drive Constant sink current generator with two channels and 16-step selection, supporting up to 274 mA sink for drive and load control.
• I/O & Packaging 18 general-purpose I/O pins, surface-mount 20-TSSOP package (173 mil) and operating temperature range −40 to +85 °C.

Typical Applications

• Single-type Smoke Detectors Integrated analog front end and ADC channels enable direct sensor interfacing and on-board signal processing for standalone smoke detection modules.
• Fire Alarm Systems Timers, watchdog and communication interfaces support event processing, local alarm control and integration with larger alarm networks.
• Battery-powered Alarm Devices Low-voltage operation (2.0–3.6 V), internal oscillator and power-down modes help extend battery life in sealed or remote detectors.
• Standalone Alarm Modules On-chip constant current sink and PWM/timer resources provide direct control of indicators, sounders and actuator drives without large external circuitry.

Unique Advantages

• Highly integrated analog front end: 10-bit ADC plus two rail-to-rail op-amps reduce external components for sensor conditioning and threshold detection.
• Built-in supervisory features: Watchdog, POReset and multi-level low-voltage reset provide robust system behavior during power events and brownouts.
• Flexible drive capability: On-chip constant sink current generator (up to 274 mA) simplifies LED/sounder drive and load management.
• Compact, production-ready package: 20-TSSOP surface-mount package with 18 GPIOs supports compact detector board layouts and automated assembly.
• Designed for embedded alarm environments: Industrial temperature range (−40 to +85 °C) and internal oscillator stability make the device suitable for diverse installation conditions.

Why Choose A96L416FR?

The A96L416FR positions itself as a focused, application-oriented microcontroller that combines a proven M8051 core with an integrated analog front end, programmable timers and strong system supervision features. Its blend of on-chip Flash, data flash, ADC, op-amps and current-driving capability reduces BOM and simplifies smoke detector and fire alarm system designs.

This MCU is ideal for designers seeking a compact, low-voltage, and temperature-tolerant solution for standalone and networked alarm modules where integration, reliability and straightforward implementation are priorities. It is supported by ABOV Semiconductor documentation and resources for embedded development and production deployment.

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