74ACT715-RSC

Overview

The onsemi 74ACT715-RSC is a programmable video sync generator in a 20-SOIC package. It generates horizontal, vertical, and composite sync/blank signals for interlaced and non-interlaced displays. The device features TTL-compatible inputs, an 8 mA output drive capability, and supports input clock frequencies exceeding 130 MHz. It includes mask-programmed default RS-170 register values and defaults to a Clock Enabled state for immediate operation upon power-up.

Feature Summary

• Generates horizontal, vertical, and composite sync and blank signals with user-definable pulse widths
• Supports both interlaced and non-interlaced operational modes with equalization and serration pulses
• Mask programmed with default RS-170 register values and defaults to a Clock Enabled state

Applications

• Televisions
• Monitors

Procurement Notes

Verify the specific suffix 'RSC' corresponds to the 20-Lead Small Outline Integrated Circuit (SOIC) package. Confirm the device status as discontinued or obsolete through official manufacturer channels before finalizing procurement plans.

Selection Notes

Select this component when a dedicated video sync generator with pre-programmed NTSC timing is required. The ACT-logic family ensures compatibility with standard TTL interfaces while providing high-speed performance suitable for professional video applications.

Part Context

This part belongs to the 74ACT logic family, utilizing high-speed silicon-gate CMOS technology. It is functionally identical to the standard 74ACT715 but differs in its initial power-up configuration, specifically regarding the system clock enable bit.

Replacement Considerations

Public confirmed substitute: None identified.