onsemi 74F11PC

Overview

74F11PC from Fairchild Semiconductor is a triple 3-input AND gate in a 14-lead PDIP package, operating at +4.5V to +5.5V supply, with propagation delays as low as 2.5 ns (tPHL) and output drive capability of −1 mA/20 mA, used in high-speed TTL-compatible digital logic control and signal gating.

For engineers reviewing the 74F11PC datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 3.0 ns typical tPLH at VCC = 5.0 V, VIH/VIL thresholds of 2.0 V/0.8 V, fan-out of 50/33.3 (HIGH/LOW), and compatibility with standard 5 V TTL logic families.

Technical Context

The 74F11PC implements three independent AND gates with fully buffered inputs and outputs, supporting standard TTL voltage levels and interfacing directly with 74F, 74LS, and 74AS families. Each gate accepts three inputs (An, Bn, Cn) and delivers a single active-HIGH output (On) with no internal inversion or enable control.

It operates within 0°C to +70°C ambient temperature, requires no external biasing, and features input clamp diodes (−1.2 V) and output short-circuit current rating up to −150 mA - enabling robust transient handling in industrial control and instrumentation signal paths.

Key Specifications

Pinout & Package

74F11PC is housed in a 14-lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001 compliant, 0.300 inch wide body with 0.100 inch lead pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-input AND gate applications.

Compared with SN74F11N, 74F11PC offers identical timing and pinout but distinct manufacturing traceability; versus 74ACT11PC, it delivers 2× faster propagation and superior noise margin in legacy TTL systems - making it optimal for speed-critical, noise-prone control logic.

Availability

74F11PC is available at Aetrix Electronics and suitable for industrial control logic, digital test equipment, legacy system upgrades, and consumer audio signal routing requiring stable component supply and long-term obsolescence management.

Supply support for 74F11PC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Fairchild Semiconductor was a U.S.-based designer and manufacturer of high-performance analog and logic ICs, acquired by ON Semiconductor in 2016; known for industry-standard TTL and F-family logic.

The 74F11PC belongs to the 74F Fast TTL logic family, engineered for high-speed digital systems requiring improved speed-power trade-offs over standard 74LS devices.

FAQ

What logic family does the 74F11PC belong to, and how does it differ from 74LS series?

The 74F11PC belongs to the 74F (Fast TTL) logic family. It differs from the 74LS series by delivering significantly faster propagation delays (2.5–5.5 ns vs. 9–20 ns), higher output drive (20 mA vs. 8 mA), and greater fan-out, while maintaining full TTL voltage compatibility. The 74F11PC achieves this through optimized bipolar transistor design and reduced internal capacitance.

Is the 74F11PC pin-compatible with other 74xx11 variants like 74LS11 or 74S11?

Yes, the 74F11PC is pin-compatible with 74LS11 and 74S11 in the same PDIP-14 package (N14A). All share identical pin assignments: Inputs A1/B1/C1 on Pins 1/2/13, Output O1 on Pin 3, etc. However, due to its faster speed and higher drive, layout decoupling and trace length should be reviewed for marginal timing margins.

What is the maximum ambient temperature rating for continuous operation of the 74F11PC?

The 74F11PC is rated for continuous operation from 0°C to +70°C ambient temperature under bias. While absolute maximum junction temperature reaches +150°C, sustained operation above +70°C requires thermal derating and is not guaranteed per datasheet specifications - use only within the recommended commercial temperature range unless validated per application.

Does the 74F11PC support mixed-voltage operation, such as interfacing with 3.3 V logic?

No, the 74F11PC is designed exclusively for 5 V TTL operation (VCC = +4.5 V to +5.5 V) and does not support 3.3 V logic interfacing directly. Its VIH threshold is 2.0 V, which may accept 3.3 V HIGH signals, but output VOH is only guaranteed ≥2.5 V at −1 mA - insufficient for reliable 3.3 V input recognition. Level-shifting is required for 3.3 V system integration.

Can the 74F11PC be used in life support or medical-critical applications?

No. Per Fairchild's Life Support Policy, the 74F11PC is not authorized for use in life support devices or systems - including surgical implants or equipment whose failure could cause injury. It lacks the process controls, extended qualification, and documentation required for such applications. Designers must obtain explicit written approval from ON Semiconductor (Fairchild's successor) before considering it in safety-critical contexts.