Nexperia USA Inc. 74HC377PW-Q100J

Overview

74HC377PW-Q100 from Nexperia is an automotive-grade octal positive-edge-triggered D-type flip-flop with data enable (E) input, operating across 2.0 V to 6.0 V supply and qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C). It latches eight parallel data bits on the LOW-to-HIGH clock transition when E is LOW, features CMOS-level inputs, and delivers propagation delay as low as 13 ns at VCC = 6.0 V - used in automotive body control modules for synchronized sensor data capture and I/O expansion.

For engineers reviewing the 74HC377PW-Q100 datasheet, 74HC377PW-Q100 pinout, 74HC377PW-Q100 application, or 74HC377PW-Q100 equivalent, key selection criteria include its automotive qualification, data-enable-controlled edge-triggered latching behavior, TSSOP20 package footprint, −40 °C to +125 °C operation, and compatibility with 3.3 V/5 V logic systems.

Technical Context

This device implements eight independent D-type flip-flops sharing a common clock (CP) and a single active-LOW data enable (E) input. Its functional behavior is defined by synchronous sampling: only when E is LOW do Dn inputs propagate to Qn outputs on the rising edge of CP, with set-up time as low as 10 ns and hold time as low as 4 ns at VCC = 6.0 V.

Input clamping diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The device supports both HC (CMOS-level) and HCT (TTL-level) variants; this part is the 74HC377 variant, specifying VIH ≥ 4.2 V and VIL ≤ 1.8 V at VCC = 6.0 V, ensuring robust noise immunity in electrically noisy automotive environments.

Key Specifications

Pinout & Package

TSSOP20 plastic thin shrink small outline package (SOT360-1), 20-pin, 4.4 mm body width, 0.65 mm pitch - optimized for space-constrained automotive PCBs with automated assembly compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC377PW-Q100, the 74HCT377PW-Q100 offers superior compatibility with TTL-level sources but sacrifices some noise margin at high VCC, while SN74LV377APWR reduces supply flexibility and eliminates automotive qualification - making the original part optimal for under-hood, wide-voltage, safety-compliant designs.

Availability

74HC377PW-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, power distribution units, and ADAS sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC377PW-Q100 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 global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions with automotive-grade reliability.

This device belongs to Nexperia's automotive-qualified 74HC logic family, designed specifically for robust digital signal conditioning and synchronization in harsh-temperature, high-EMI vehicle subsystems - emphasizing AEC-Q100 compliance, wide VCC tolerance, and latch-up immunity.

FAQ

What is the maximum clock frequency supported by the 74HC377PW-Q100?

The 74HC377PW-Q100 supports a maximum clock frequency of 24 MHz at VCC = 6.0 V and Tamb = +125 °C, verified under worst-case conditions with CL = 50 pF. At VCC = 4.5 V and +125 °C, fmax drops to 20 MHz due to increased propagation delay. This rating assumes E remains stable for ≥10 ns before each CP rising edge.

Can the 74HC377PW-Q100 interface directly with 3.3 V microcontrollers?

Yes - the 74HC377PW-Q100 operates down to 2.0 V and accepts 3.3 V logic levels as valid inputs when VCC ≥ 3.3 V. At VCC = 3.3 V, VIH(min) = 2.1 V and VIL(max) = 1.35 V per datasheet Table 6, ensuring full compatibility with standard 3.3 V CMOS outputs without level shifting.

Does the 74HC377PW-Q100 include a master reset function?

No - the 74HC377PW-Q100 has no dedicated asynchronous reset (MR) or clear input. Its functional table confirms only two operating modes: "load" (when E = LOW and CP rises) and "hold" (when E = HIGH or CP is static). To force all outputs LOW, external gating of Dn inputs or post-latch logic is required.

How does the data enable (E) pin affect timing constraints?

E must be stable for at least the specified set-up time (10 ns min at VCC = 6.0 V) before the CP rising edge to ensure predictable sampling. If E changes within that window, outputs may enter metastability or retain prior state - violating the function table's "no change" condition. This requirement is independent of Dn timing and must be verified in system-level timing analysis.