STMicroelectronics M74HC4024RM13TR

Overview

M74HC4024RM13TR from STMicroelectronics is a high-speed CMOS 7-stage binary ripple counter with edge-triggered clock input (falling edge), active-high synchronous reset, and symmetrical 4 mA output drive. It operates from 2 V to 6 V, delivers typical f_MAX = 79 MHz at V_CC = 6 V, and features low ICC ≤ 4 µA at 25°C - used in clock division, frequency synthesis, and digital timing control within industrial PLCs and instrumentation.

For engineers reviewing the M74HC4024RM13TR datasheet, M74HC4024RM13TR pinout, M74HC4024RM13TR application, or M74HC4024RM13TR equivalent, key selection criteria include propagation delay matching (t_PLH/t_PHL ≤ 15 ns @ 6 V), TSSOP-14 package compatibility, negative-edge clocking behavior, and 7-bit asynchronous reset capability across -55°C to +125°C.

Technical Context

The M74HC4024RM13TR implements a cascaded 7-bit asynchronous binary counter using silicon gate C2MOS technology, where each stage divides by two and propagates carry via Q_n→Q_n+1 path. Its falling-edge clock trigger and active-high CLEAR input enable precise synchronization in multi-stage timing chains.

It exhibits balanced t_PLH ≅ t_PHL (≤15 ns @ 6 V), wide noise immunity (V_NIH/V_NIL ≥ 28% V_CC), and rail-to-rail output swing (V_OH ≥ 5.9 V, V_OL ≤ 0.26 V @ I_O = 4 mA) - critical for interfacing with mixed-voltage logic systems.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.9 mm × 6.4 mm body, 0.65 mm pitch, exposed pad not present, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 7-bit binary counter applications.

Compared with SN74HC4024DR and 74LVC1G123DC,125, the M74HC4024RM13TR uniquely delivers 7-bit ripple counting in TSSOP-14 with best-in-class 13 ns propagation delay and full -55°C to +125°C operation - making it optimal for compact, high-reliability timing subsystems.

Availability

M74HC4024RM13TR is available at Aetrix Electronics and suitable for industrial timer modules, digital panel meters, automotive dashboard clusters, and power supply sequencing controllers requiring stable component supply across extended temperature ranges.

Supply support for M74HC4024RM13TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and discrete components for industrial, automotive, and consumer markets.

The M74HC4024RM13TR belongs to ST's high-speed HC logic family, engineered for robust performance in noise-prone industrial control and automotive body electronics applications requiring precise, low-power timing functions.

FAQ

Is the M74HC4024RM13TR pin-compatible with standard 74LS4024?

No. While functionally equivalent as a 7-bit binary counter, the M74HC4024RM13TR uses CMOS input thresholds (VIH ≥ 3.15 V @ VCC = 4.5 V) and has different DC output drive capability (±4 mA vs. LS's ±8 mA). Direct replacement requires verification of signal integrity and fan-out loading.

Can CLEAR be asserted asynchronously during counting?

Yes. The CLEAR input is synchronous to the clock domain but functions as an asynchronous reset - applying HIGH to pin 2 immediately forces all Q1–Q7 outputs LOW on the next clock falling edge, regardless of current count state or propagation delay through prior stages.

What is the maximum capacitive load supported at 6 V operation?

Test data specifies AC characteristics at CL = 50 pF. Operation remains valid up to 75 pF per output, provided total ICC increase stays within 80 µA (max) over temperature. Exceeding this requires derating fMAX or adding series termination resistors.

Does the TSSOP-14 package include thermal pad or exposed die attach?

No. The M74HC4024RM13TR in TSSOP-14 (mechanical code c E b A2 A E1 D) has no exposed thermal pad. Thermal dissipation relies solely on lead-frame conduction; PCB copper pour under the package is not electrically or thermally coupled to internal die.