Nexperia USA Inc. 74LVC377D,112

Overview

74LVC377D,112 from Nexperia is an octal positive-edge-triggered D-type flip-flop with data enable (E) input, designed for synchronous data latching in digital logic systems. It operates across 1.2 V to 3.6 V supply, accepts 5.5 V-tolerant inputs, delivers 24 mA output drive at 3.0 V, and supports -40 °C to +125 °C ambient operation - enabling use in industrial control backplanes and mixed-voltage I/O interfacing.

For engineers reviewing the 74LVC377D,112 datasheet, 74LVC377D,112 pinout, 74LVC377D,112 application, or 74LVC377D,112 equivalent, key selection criteria include setup/hold timing (tsu = 2.0 ns, th = 0.0 ns @ VCC = 3.3 V), propagation delay (tpd = 4.0 ns typ), maximum clock frequency (fmax = 150 MHz @ VCC = 3.3 V), and SO20 package compatibility with legacy 74-series footprint constraints.

Technical Context

This device implements eight independent D-type flip-flops sharing a common clock (CP) and active-low data enable (E). When E is LOW, each Qn output captures the corresponding Dn input on the LOW-to-HIGH CP transition, provided set-up and hold time requirements are met. Input stability of E one set-up time before CP edge is mandatory for deterministic behavior.

Its CMOS architecture enables direct interface with TTL-level signals and bidirectional voltage translation between 3.3 V and 5 V domains due to overvoltage-tolerant inputs (up to 5.5 V) and wide VCC range (1.2 V–3.6 V). Output drive capability supports 50 Ω transmission line termination at 125 °C.

Key Specifications

Pinout & Package

74LVC377D,112 is supplied in SO20 (SOT163-1) plastic small outline package: 20-pin, 7.5 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 is index-marked; pin 10 = GND; pin 20 = VCC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal D-type flip-flop applications.

Compared with SN74LVC827APWR and 74AUP1G74GM, the 74LVC377D,112 uniquely combines octal density, single-pin data enable, 24 mA drive, and 5.5 V input tolerance in SO20 - making it optimal for compact, high-reliability parallel data latching where global control and mixed-voltage interoperability are essential.

Availability

74LVC377D,112 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and test equipment digital pattern generation requiring stable component supply across extended temperature ranges and mixed-voltage interfaces.

Supply support for 74LVC377D,112 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

Nexperia is a leading Dutch semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74LVC377 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interoperability, low power consumption, and industrial-grade reliability in demanding embedded control applications.

FAQ

Can 74LVC377D,112 operate reliably at 1.2 V supply?

Yes. The device is fully specified down to 1.2 V VCC, with functional operation confirmed across -40 °C to +125 °C. At 1.2 V, tpd increases to 15 ns and fmax drops to ~80 MHz, but static parameters (VIH/VIL thresholds, ICC) remain valid per Table 6. This enables ultra-low-power standby modes in portable instrumentation.

What is the minimum pulse width required on the E (enable) input?

The minimum E pulse width is 3.0 ns at VCC = 3.3 V (Table 7), measured as the duration E remains LOW to guarantee valid sampling. Shorter pulses may cause unpredictable output behavior. This requirement scales with VCC: 5.5 ns at 1.8 V, 4.5 ns at 2.5 V - all defined in the "tW" parameter row.

Does 74LVC377D,112 support hot insertion in live backplanes?

No. While inputs tolerate 5.5 V, the device lacks explicit hot-swap protection features such as power-on reset, Ioff (power-off isolation), or slew-rate controlled outputs. Applying VCC while inputs are driven risks latch-up or excessive ICC. Use only in systems with controlled power sequencing or external hot-swap controllers.

How does output skew impact timing-critical parallel bus applications?

Output skew (tsk(o)) is guaranteed ≤1.0 ns (max) between any two Q outputs switching in the same direction (Table 7). This ensures simultaneous assertion of all 8 bits within a 1 ns window - sufficient for 500 Mbps parallel interfaces and eliminates need for per-bit deskew calibration in FPGA-to-ASIC bridging applications.