ADUC7128BSTZ126-RL

Microcontrollers Overview

The ADuC7128BSTZ126-RL is a precision analog microcontroller featuring an ARM7TDMI core operating at up to 41.78 MHz with 126 kB Flash/EE memory and 8 kB SRAM. It integrates a 1 MSPS, 12-bit ADC with up to 14 channels, a 10-bit DAC, and a 32-bit DDS with a 100 Ω line driver. The device operates on a 3.0 V to 3.6 V supply within the −40°C to +125°C temperature range.

Microcontrollers Feature Summary

• Integrates a high-performance ARM7TDMI MCU with nonvolatile Flash/EE memory and SRAM for embedded control applications.
• Includes a multichannel 12-bit, 1 MSPS ADC supporting fully differential and single-ended input modes.
• Features a 10-bit DAC combined with a 32-bit direct digital synthesis (DDS) module and integrated low-pass filter.
• Provides comprehensive digital peripherals including UARTs, I2C, SPI, PWM generators, and a quadrature encoder.

Microcontrollers Applications

• Motor-control systems requiring precise analog feedback and pulse-width modulation
• Data acquisition systems utilizing multi-channel signal processing
• Industrial automation equipment with sensor interface requirements

Microcontrollers Procurement Notes

Verify the specific package variant against the ordering guide, as the ADuC7128 family supports multiple packages including 64-lead LFCSP and LQFP configurations. Confirm that the selected part number matches the required pinout and thermal specifications for your design. Ensure compatibility with the intended development tools for in-circuit serial download and JTAG debugging.

Microcontrollers Selection Notes

Select this component when a unified solution combining high-speed data conversion and complex microcontroller logic is necessary. The integrated DDS and line driver simplify waveform generation tasks without external components. Consider the power consumption profiles across different clock speeds and the availability of factory firmware for rapid system initialization.

Microcontrollers Part Context

This device belongs to Analog Devices' MicroConverter family, designed to merge analog and digital functions on a single silicon die. It utilizes the ARM7TDMI architecture to provide robust processing capabilities alongside precision analog peripherals, targeting applications that demand tight integration of sensing, control, and communication interfaces.

Microcontrollers Replacement Considerations

The ADuC7129 serves as a functional substitute within the same series. Verify pin compatibility and peripheral configuration differences before substitution. Consult the manufacturer's documentation for detailed cross-reference information regarding package options and electrical characteristics.

Microcontrollers FAQ

What are the supported input modes for the ADC?

The ADC supports both fully differential and single-ended input modes, accommodating up to 14 analog input channels.

How is the internal clock generated?

The device uses an on-chip oscillator and PLL to generate an internal high-frequency clock of 41.78 MHz, which is routed through a programmable divider to set the MCU core frequency.

Does the device support in-circuit programming?

Yes, it supports in-circuit serial download via the UART interface and provides nonintrusive emulation through the JTAG interface.