CD74HC7046AE

Product Overview

The CD74HC7046AE from Harris Corporation is a 74HC-series phase-locked loop integrated circuit intended for clock and timing functions. It provides one PLL circuit with CMOS input and CMOS output interfaces, a maximum frequency rating of 38 MHz, and an input-to-output ratio of 1:2. The device operates from a 2 V to 6 V supply and is specified for an ambient temperature range of -55°C to 125°C. It is offered in a through-hole 16-DIP package with a 0.300 in (7.62 mm) body width, corresponding to a 16-PDIP device package.

Key Features

• Harris Corporation CD74HC7046AE phase-locked loop IC from the 74HC series
• One PLL circuit with CMOS input and CMOS output
• Maximum frequency of 38 MHz and input-to-output ratio of 1:2
• Operating supply voltage range of 2 V to 6 V
• Through-hole 16-DIP (0.300 in, 7.62 mm) package, 16-PDIP
• No differential input or output; no divider or multiplier
• Operating temperature range of -55°C to 125°C

Applications

• Clock generation and phase-locked timing in general-purpose electronic assemblies
• Frequency synthesis or phase comparison in communication and signal-processing equipment
• Through-hole prototype and development timing circuits using a 74HC CMOS PLL

Design & Procurement Notes

Designers should reserve a through-hole 16-pin DIP footprint with 0.300 in body width and verify that the PCB pad layout matches the 16-PDIP package. The 2 V to 6 V supply range should be checked against the board logic voltage, and CMOS input/output levels should be compatible with the surrounding circuit. Because the maximum frequency is 38 MHz and the input-to-output ratio is 1:2, timing budgets should be evaluated at the intended operating point. The absence of differential I/O and of divider or multiplier functions means external circuitry may be required for specific timing or frequency-synthesis arrangements. The -55°C to 125°C operating temperature range can be considered for wide-temperature designs, but system qualification should be based on the final board implementation.