29F52SPC

Overview

The onsemi 29F52SPC is an 8-bit registered transceiver housed in a 24-lead Plastic Dual-In-Line Package (PDIP). It operates within a supply voltage range of +4.5V to +5.5V and supports ambient temperatures from 0°C to +70°C. The device features separate clock, clock enable, and three-state output enable signals for each register. Output A pins sink up to 24 mA, while Output B pins are designed for 64 mA. Propagation delays range from 3.0 ns to 10.0 ns depending on the load and temperature conditions.

Feature Summary

• Contains two back-to-back 8-bit registers to store data flowing bidirectionally between buses.
• Provides independent control signals including clock, clock enable, and three-state output enable for each register.
• Features asymmetric drive capabilities with distinct current sinking ratings for A and B output pins.

Applications

• Bidirectional bus interfacing applications requiring registered data storage.
• System designs utilizing AMD Am2952/2953 functional equivalents.
• Digital logic circuits requiring isolated clocking and tri-state control for data paths.

Procurement Notes

Verify that the specific ordering code matches the required package type, as the 29F52SPC denotes the PDIP variant. Confirm compatibility with existing board footprints for the 24-lead dual-in-line configuration. Ensure the design accommodates the specified operating voltage and temperature ranges defined in the datasheet before finalizing procurement.

Selection Notes

Select this component when an 8-bit registered transceiver with independent control per register is required. The non-inverting nature of the 29F52 distinguishes it from the inverting 29F53 option. Consider the specific drive current requirements of the connected loads, as the A and B outputs have different maximum sinking capabilities.

Part Context

This component belongs to the 29F52/29F53 series of 8-bit registered transceivers originally developed by Fairchild Semiconductor. These devices serve as functional equivalents to the AMD Am2952 and Am2953 families. The 29F52SPC specifically identifies the non-inverting version packaged in a standard 24-lead plastic dual-in-line format.

Replacement Considerations

The datasheet explicitly states that the 29F52 is functionally equivalent to the AMD Am2952. Designers may consider the AMD Am2952SC or Am2952SPC as direct replacements, provided pinouts and electrical characteristics remain consistent with the original specifications.