ATZB-A24-U0R >
ATZB-A24-U0R
Microchip Technology
RF TXRX MODULE 802.15.4 SMD
1450 Pcs New Original In Stock
802.15.4 Zigbee® Transceiver Module 2.4GHz Antenna Not Included Surface Mount
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ATZB-A24-U0R Microchip Technology
5.0 / 5.0 - (125 Ratings)

ATZB-A24-U0R

Product Overview

1273908

DiGi Electronics Part Number

ATZB-A24-U0R-DG
ATZB-A24-U0R

Description

RF TXRX MODULE 802.15.4 SMD

Inventory

1450 Pcs New Original In Stock
802.15.4 Zigbee® Transceiver Module 2.4GHz Antenna Not Included Surface Mount
Quantity
Minimum 1

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ATZB-A24-U0R Technical Specifications

Category RF Transceiver Modules and Modems

Manufacturer Microchip Technology

Packaging -

Series ZigBit™

Product Status Obsolete

DiGi-Electronics Programmable Not Verified

RF Family/Standard 802.15.4

Protocol Zigbee®

Modulation -

Frequency 2.4GHz

Data Rate 250kbps

Power - Output 20dBm

Sensitivity -104dBm

Serial Interfaces I2C, JTAG, SPI, UART, USART

Antenna Type Antenna Not Included

Utilized IC / Part AT86RF230

Memory Size 128kB Flash, 4kB EEPROM, 8kB RAM

Voltage - Supply 3V ~ 3.6V

Current - Receiving 23mA

Current - Transmitting 50mA

Mounting Type Surface Mount

Operating Temperature -20°C ~ 70°C

Package / Case PCB Module

Datasheet & Documents

HTML Datasheet

ATZB-A24-U0R-DG

Environmental & Export Classification

RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 5A991B1
HTSUS 8517.79.0000

Additional Information

Other Names
ATZB-A24-U0RCT
ATZB-A24-U0RTR
ATZB-A24-U0RDKR
Standard Package
200

Reviews

5.0/5.0-(Show up to 5 Ratings)
Fleur***allée
Dec 02, 2025
5.0
DiGi Electronics combine parfaitement prix abordables et emballage fiable, c’est idéal.
うみ***やき
Dec 02, 2025
5.0
毎回、期待以上の商品を提供してくれるので安心して利用しています。スタッフもとても丁寧で感謝しています。
Bliss***Waves
Dec 02, 2025
5.0
DiGi Electronics consistently delivers reliable products that meet our high standards.
Mysti***urney
Dec 02, 2025
5.0
They deliver excellent after-sales services, making our partnership highly beneficial.
Blis***lDays
Dec 02, 2025
5.0
The delivery was on time, and the customer service team was very helpful and courteous.
Mell***oods
Dec 02, 2025
5.0
I appreciate their transparent shipping timelines and the consistent quality of their products.
Op***kys
Dec 02, 2025
5.0
Reliable logistics tracking combined with premium packaging made my purchase truly satisfying.
Nov***est
Dec 02, 2025
5.0
Excellent packaging design that protected the item throughout the delivery process.
Wildf***erNest
Dec 02, 2025
5.0
Prompt shipping and reliable products make DiGi Electronics my go-to supplier for electronic accessories.
Sunri***unter
Dec 02, 2025
5.0
The combination of good packaging and attractive pricing makes shopping with DiGi Electronics a no-brainer.
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Frequently Asked Questions (FAQ)

Can the ATZB-A24-U0R be used in a new product design despite being marked as obsolete, and what are the key supply chain and long-term reliability risks?

Although the ATZB-A24-U0R is listed as obsolete by Microchip Technology, it may still be used in new designs if you have secured sufficient inventory or can source it through authorized distributors with full traceability. However, long-term supply risk is high—obsolete status typically means no future production, increasing vulnerability to shortages. Additionally, since the module relies on the AT86RF230 transceiver IC (also discontinued), second-sourcing becomes nearly impossible. For mission-critical or high-volume products, consider migrating to a supported alternative like the ATZB-24-A2 (ZigBit 2) or MRF24J40MA from Microchip, which offer pin-compatible or functionally similar upgrades with ongoing support and improved MSL ratings.

What antenna integration challenges should I expect when designing with the ATZB-A24-U0R, given that it requires an external antenna?

The ATZB-A24-U0R does not include an integrated antenna, so you must design or integrate a 2.4GHz antenna with proper impedance matching (50Ω) and RF layout considerations. Poor antenna placement, ground plane discontinuities, or inadequate clearance can severely degrade range and sensitivity. Use a certified antenna (e.g., chip antenna like Johanson 2450AT18A100 or PCB trace antenna) and follow Microchip’s reference design guidelines for the AT86RF230. Perform return loss and VSWR measurements to validate matching. Also, ensure the antenna is placed away from noisy digital components and metal enclosures to avoid detuning and EMI issues that could compromise the -104dBm receiver sensitivity.

How does the ATZB-A24-U0R compare to the newer ATZB-24-A2 in terms of power consumption, firmware compatibility, and drop-in replacement feasibility?

The ATZB-A24-U0R and ATZB-24-A2 both operate at 2.4GHz with 250kbps data rate and similar RF performance, but the ATZB-24-A2 features lower active current (18mA RX vs. 23mA) and enhanced sleep modes, improving battery life in wireless sensor applications. Firmware compatibility is partial—both use the AT86RF230 PHY layer, but the newer module may include updated microcontroller firmware and better Zigbee stack support. While pinout and form factor are similar, full drop-in replacement isn’t guaranteed due to potential differences in boot configuration or GPIO mapping. Always verify electrical and protocol behavior in your specific application before committing to a migration.

What are the thermal and environmental limitations of the ATZB-A24-U0R in industrial or outdoor applications, especially regarding its -20°C to 70°C operating range?

The ATZB-A24-U0R’s specified operating temperature range of -20°C to 70°C limits its use in harsh environments such as unheated outdoor enclosures in cold climates or near heat-generating industrial equipment. Prolonged operation near the upper limit can accelerate aging of the internal flash memory and reduce RF output stability. Additionally, the MSL 3 rating (168 hours floor life) requires careful handling during assembly—exposure to ambient humidity beyond this window necessitates baking before reflow to prevent moisture-induced cracking. For extended temperature needs, consider industrial-grade alternatives like the Digi XBee3 PRO (XB3-24Z8PT) which supports -40°C to 85°C and includes built-in antenna options with better environmental resilience.

Is it safe to use the ATZB-A24-U0R in a battery-powered IoT node given its 50mA transmit current, and how can I optimize power efficiency without sacrificing range?

Yes, the ATZB-A24-U0R can be used in battery-powered IoT nodes, but its 50mA transmit current at 20dBm output demands careful power management. To extend battery life, implement duty cycling with deep sleep modes between transmissions and reduce transmit power via AT86RF230 register settings when maximum range isn’t needed—each 3dB reduction roughly halves current draw. Use the module’s UART or SPI interface to wake the host MCU only when necessary. Also, ensure your power supply can handle peak current transients to avoid voltage droop. For ultra-low-power designs, evaluate alternatives like the Microchip MRF24J40MA (30mA TX) or Silicon Labs MGM210L, which offer better energy-per-bit efficiency and integrated power amplifiers with dynamic control.

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