ZLFBLST0H2064GR5621

Overview

The ZLFBLST0H2064GR5621 is a Crimzon RC Blaster system-on-chip infrared remote control solution manufactured by Zilog. It integrates a 64K Flash microcontroller, an IR engine, and the ZBase database to provide universal remote control capabilities for home entertainment devices. The device operates on a low voltage supply of 1.9 V to 3.6 V and features a two-way full-duplex UART supporting 9.6 kbps or 19.2 kbps baud rates, alongside software I2C communication up to 10 kbps. It includes four user-programmable GPIOs and supports IR learning functionality with integrated amplification.

Feature Summary

• Integrated 64K Flash memory with comprehensive ZBase infrared code database covering North American and European markets.
• Supports IR learning capability using a single photodiode and tuned amplifier without external filtering components.
• Dual communication interfaces: hardware UART (9.6/19.2 kbps) and software I2C (up to 10 kbps).
• Low power consumption with STOP mode current draw of 2 μA.

Applications

• Set-top boxes (STB)
• Digital video recorders (DVR)
• DVD recorders
• IPTV systems
• Media center PCs

Procurement Notes

Verify the specific suffix '5621' against official Zilog documentation to confirm the exact ROM code version associated with this part number. Ensure compatibility with the required 20-pin SSOP package configuration. Confirm that the design utilizes the specified 1.9 V to 3.6 V operating voltage range and appropriate serial interface protocols.

Selection Notes

Select this component when a turnkey infrared solution with embedded database and learning capabilities is required. The 64K Flash variant allows for future upgrades via script formats. Consider the 20-pin SSOP package for surface-mount applications. Verify that the host CPU supports either UART or I2C interfaces for command transmission.

Part Context

This part belongs to the Crimzon RC Blaster family of universal infrared solutions from Zilog. It is designed as a slave device controlled by a master CPU. The 'ZLF' prefix indicates the 64K Flash memory variant, while 'H' denotes the SSOP package. This series replaces discrete IR transmitter designs with a highly integrated silicon solution.

Replacement Considerations

Direct replacements within the same family include ZLFBLST0P2064GRXXXX (PDIP), ZLFBLST0S2064GRXXXX (SOIC), and ZLFBLST0Q2064GRXXXX (QFN). These variants share identical functional specifications but differ in physical package type. OTP and ROM versions are not electrically interchangeable due to memory architecture differences.