Texas Instruments CD74HC107MG4

Overview

CD74HC107MG4 from Texas Instruments is a dual J-K flip-flop with asynchronous reset, negative-edge clock triggering, complementary Q/Q outputs, and buffered inputs. It operates from 2V to 6V, delivers 60MHz maximum clock frequency at 5V/15pF, and supports industrial temperature range (–55°C to +125°C). It is used in synchronous logic control, state machines, and clock division circuits in embedded instrumentation.

For engineers reviewing the CD74HC107MG4 datasheet, CD74HC107MG4 pinout, CD74HC107MG4 application, or CD74HC107MG4 equivalent, this page provides verified functional identity, SOIC-14 package mapping, timing parameters (t_PLH/t_PHL = 14ns @5V/15pF), noise immunity specs (NIL/NIH = 30% of V_CC), and validated alternatives for logic design reuse.

Technical Context

The CD74HC107MG4 implements two independent edge-triggered J-K flip-flops sharing no internal coupling-each with dedicated J, K, clock (CP), and asynchronous reset (R) inputs plus true and complemented outputs (Q, Q̅). Its silicon-gate CMOS architecture enables LSTTL-equivalent speed with CMOS power efficiency.

It features hysteresis on clock inputs to suppress noise-induced false triggering, balanced propagation delay (t_PLH ≈ t_PHL), and fanout capability of 10 LSTTL loads over full temperature range. Reset is active-low and asynchronous, overriding clock and data inputs immediately.

Key Specifications

Pinout & Package

CD74HC107MG4 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package, 3.9mm wide, 1.75mm max height, with 1.27mm pitch. Pin 1 is marked by a beveled corner or notch; device is moisture-sensitive Level-1 (unlimited reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual J-K flip-flop with reset applications.

Compared with SN74HC107DR and CD74HCT107M96, CD74HC107MG4 provides the widest supply range (2V–6V) and highest noise immunity (30% V_CC hysteresis), making it optimal for mixed-voltage or electrically noisy environments where HCT's TTL compatibility isn't needed.

Availability

CD74HC107MG4 is available at Aetrix Electronics and suitable for industrial automation, avionics timing modules, and medical imaging frame controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD74HC107MG4 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic ICs, with decades of heritage in high-reliability logic families including the CD74HC series.

CD74HC107MG4 belongs to TI's industry-standard HC logic portfolio, designed for robust, low-power, wide-voltage digital control in mission-critical industrial, aerospace, and instrumentation systems.

FAQ

What is the recommended bypass capacitor for CD74HC107MG4?

A 100nF ceramic capacitor placed within 5mm of the V_CC (Pin 8) and GND (Pin 7) pins is required to suppress high-frequency switching noise and ensure stable operation at 60MHz. Additional bulk capacitance (e.g., 1µF tantalum) may be added nearby for low-frequency supply stabilization in systems with shared rails. The CD74HC107MG4 exhibits low dynamic current draw, but localized decoupling remains critical for edge integrity.

Does CD74HC107MG4 support 3.3V operation?

Yes, CD74HC107MG4 fully supports 3.3V operation within its specified 2V–6V range. At V_CC = 3.3V, it delivers f_MAX ≥ 25MHz (–55°C to +125°C), t_PLH/t_PHL ≤ 43ns (CL = 50pF), and maintains 30% noise immunity (NIL/NIH = 1.0V). This makes CD74HC107MG4 suitable for interfacing with 3.3V microcontrollers while retaining compatibility with 5V peripherals via level translation if needed.

Can CD74HC107MG4 replace CD74HCT107E in an existing 5V design?

CD74HC107MG4 can replace CD74HCT107E only if all driving sources meet HC input thresholds (VIH ≥ 3.15V, VIL ≤ 1.35V at V_CC = 5V). Unlike HCT, CD74HC107MG4 lacks TTL-input compatibility - it will not reliably recognize standard TTL outputs (VOH ≈ 2.4V). Verify driver VOH/ VOL levels before substitution; if marginal, retain CD74HCT107E or add a buffer. The CD74HC107MG4 pinout and function are identical.

What is the meaning of "G4" suffix in CD74HC107MG4?

The "G4" suffix in CD74HC107MG4 denotes Texas Instruments' green packaging standard: lead-free (Pb-free), RoHS-compliant, and halogen-free construction. It indicates the device uses NiPdAu lead finish on SOIC leads and conforms to JEDEC J-STD-020 moisture sensitivity Level-1 (unlimited floor life). The core electrical and thermal specifications of CD74HC107MG4 remain identical to non-G4 variants.

How does the asynchronous reset behave during power-up?

During power-up, CD74HC107MG4's asynchronous reset (1R/2R) is not inherently asserted - its state depends on external circuitry. To guarantee known initial states, tie 1R and 2R to V_CC through a pull-up resistor (e.g., 10kΩ) and use a dedicated power-on reset (POR) circuit or RC network to briefly pull them low after V_CC stabilizes. Without this, CD74HC107MG4 outputs may power up in undefined states, risking glitch propagation. The CD74HC107MG4 itself contains no internal POR.