The 74LS256PC is a dual 4-bit D latch implemented in low-power Schottky TTL logic. Each of the two independent latches stores four bits of data, with a common enable and clear per function. This part is designed for general-purpose data storage and buffering in 5 V TTL systems, such as microprocessor bus interfaces, register files, and control logic in industrial controllers or legacy telecom equipment.
However, it is RoHS non-compliant, meaning it contains lead (Pb) in the solder finish or die attach. This is acceptable for military, aerospace, and industrial applications with a leaded assembly exemption, but it cannot be used in RoHS-mandated consumer or medical products without a waiver. For new designs requiring lead-free compliance, a functionally similar part in a compatible logic family — such as the 74FCT573APC — should be evaluated.
Sourcing and quoting for the 74LS256PC
Because the part is active and not subject to last-time-buy deadlines, it can be specified into production BOMs with confidence. For volume requirements or scheduled releases, a quote request will return lead-time and pricing tailored to your quantity.