ML22Q274-NNNTDZ0ATL

Audio Special Purpose Overview

The ML22Q274-NNNTDZ0ATL is a speech synthesis LSI from ROHM Semiconductor featuring built-in flash memory for storing voice code data. It operates within a voltage range of 2V to 5.5V and supports clock-synchronous serial interface control. The device includes a Class-D speaker amplifier for direct drive capability and functions in temperatures from -40°C to 105°C. Packaged in a 20-TSSOP format, it integrates essential audio processing functions into a single chip solution.

Audio Special Purpose Feature Summary

• Built-in flash memory for voice code storage
• Integrated Class-D speaker amplifier output
• Clock-synchronous serial interface control
• Operating temperature range: -40°C to 105°C

Audio Special Purpose Applications

• Voice guidance modules
• Audio signal processing units

Audio Special Purpose Procurement Notes

Verify the specific ordering suffix Z0ATL against official ROHM documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements between 2V and 5.5V. Confirm that the clock-synchronous serial interface aligns with the host controller's communication protocol before procurement.

Audio Special Purpose Selection Notes

Select this model when independent control is not required, as it utilizes clock-synchronous serial interfaces unlike the ML22Q284 variant. Consider the integrated Class-D amplifier if external power amplification is undesirable. Verify that the 20-TSSOP package fits the PCB layout constraints and that the operating temperature range meets the environmental conditions of the target application.

Audio Special Purpose Part Context

This component belongs to the ML22Q series of speech synthesis LSIs. It shares architectural similarities with models like the ML22Q284 and ML22Q294 but differs in its control interface method. While the ML22Q284 allows independent control and the ML22Q294 uses I2C, the ML22Q274 relies on clock-synchronous serial communication for operation.

Audio Special Purpose Replacement Considerations

Direct substitutes within the same family include the ML22Q284-NNNTDZ0ARL and ML22Q294-NNNTDZ0ARL. Note that these alternatives utilize different control interfaces (independent and I2C respectively) compared to the clock-synchronous serial interface of the ML22Q274. Interface compatibility must be verified before substitution.