AT89LS52-16AU The AT89LS52-16AU is a low-voltage 8-bit microcontroller with 8KB of Flash memory, 256 bytes of RAM, and 32 I/O lines in a 44-TQFP package.
Mfr Part #:

AT89LS52-16AU

Available from 2 distributors
Mfr Name: Atmel
Atmel
The AT89LS52-16AU is a low-voltage 8-bit microcontroller with 8KB of Flash memory, 256 bytes of RAM, and 32 I/O lines in a 44-TQFP package.
✓ Total Stock: 36,273 pcs

AT89LS52-16AU Available from 2 distributors

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AT89LS52-16AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage
Watchdog Timer

AT89LS52-16AU Description

Short technical summary and product information.

The AT89LS52 is a low-voltage, high-performance CMOS 8-bit microcontroller manufactured by Atmel. It features 8K bytes of in-system programmable Flash memory, 256 bytes of internal RAM, 32 programmable I/O lines, three 16-bit timer/counters, and a full duplex UART serial channel. The device is compatible with the industry-standard 80C51 instruction set and pinout, making it a versatile choice for embedded control applications.

 

Operating from 2.7V to 4.0V with a fully static 0 Hz to 16 MHz clock, the AT89LS52 supports low-power Idle and Power-down modes. It includes a watchdog timer, dual data pointer, power-off flag, and eight interrupt sources. The on-chip Flash allows in-system programming via byte or page modes, with an endurance of 10,000 write/erase cycles.

 

The AT89LS52-16AU is supplied in a 44-TQFP (10x10 mm) surface-mount package, suitable for compact designs. It is available in a green (Pb/halide-free) packaging option, supporting RoHS compliance.

AT89LS52-16AU Quick Information

Product Type: Microcontroller
Series: AT89LS52
Canonical Name: AT89LS52-16AU 8-bit Microcontroller
Subcategory: 8-bit Microcontroller

AT89LS52-16AU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Green (Pb/Halide-free) Packaging Option

AT89LS52-16AU Features

  • 8-bit 8051-compatible core processor.
  • 8KB in-system programmable Flash memory.
  • 256 x 8-bit internal RAM.
  • 32 programmable I/O lines.
  • Full duplex UART serial channel.

AT89LS52-16AU Applications

  • Embedded control systems.
  • Industrial automation and monitoring.
  • Consumer electronics with low-power requirements.
  • Automotive body control modules.
  • IoT edge devices with serial communication.

AT89LS52-16AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the AT89LS52-16AU?

The operating voltage range is 2.7V to 4.0V.

What is the package type for the AT89LS52-16AU?

The package is 44-TQFP (10x10 mm) with surface mount.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C (TA).

Is the AT89LS52-16AU RoHS compliant?

The part is listed as RoHS3 compliant and is available in a green (Pb/halide-free) packaging option, but the compliance status is unverified and should be confirmed.

What is the core processor of the AT89LS52-16AU?

The core processor is an 8051 8-bit CPU.

What is the maximum clock frequency?

The maximum clock frequency is 16 MHz, with fully static operation down to 0 Hz.

How much Flash memory does the AT89LS52-16AU have?

It has 8KB (8K x 8) of in-system programmable Flash memory with 10,000 write/erase cycles endurance.

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