Overview
The 74HCT393D,652 from NXP Semiconductors is a dual 4-stage binary ripple counter. This integrated circuit is part of the 74HCT series, which is known for its compatibility with TTL (Transistor-Transistor Logic) systems. Each counter within the IC features a clock input (nCP), an overriding asynchronous master reset input (nMR), and four buffered parallel outputs (nQ0 to nQ3). The counter advances on the HIGH-to-LOW transition of the clock input, and a HIGH on the master reset input clears the counter stages and forces the outputs LOW, independent of the clock input state.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | - | 2.0 | - | 6.0 | V |
| VIH (HIGH-level input voltage) | VCC = 4.5 V to 5.5 V | 2.0 | - | 2.0 | V |
| VIL (LOW-level input voltage) | VCC = 4.5 V to 5.5 V | - | 0.8 | 1.2 | V |
| VOH (HIGH-level output voltage) | IO = -4 mA, VCC = 4.5 V | 3.84 | 4.32 | - | V |
| tPHL (HIGH to LOW propagation delay) | VCC = 4.5 V, CL = 15 pF | 11 | 24 | - | ns |
| fclk(max) (maximum clock frequency) | VCC = 4.5 V, CL = 15 pF | 27 | 53 | - | MHz |
| CPD (power dissipation capacitance) | CL = 50 pF, f = 1 MHz, VI = GND to VCC | - | - | 23 | pF |
Key Features
- Wide supply voltage range from 2.0 V to 6.0 V
- CMOS low power dissipation
- High noise immunity
- Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
- Complies with JEDEC standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V)
- Inputs include clamp diodes for interfacing with voltages in excess of VCC
Applications
The 74HCT393D,652 is suitable for various digital circuit applications requiring binary counting. It can be used in digital counters, frequency dividers, and other sequential logic circuits. Its wide supply voltage range and low power dissipation make it versatile for use in a variety of electronic systems, including industrial control systems, consumer electronics, and automotive applications.
Q & A
- What is the 74HCT393D,652? The 74HCT393D,652 is a dual 4-stage binary ripple counter IC from NXP Semiconductors.
- What is the supply voltage range of the 74HCT393D,652? The supply voltage range is from 2.0 V to 6.0 V.
- How does the counter advance? The counter advances on the HIGH-to-LOW transition of the clock input (nCP).
- What is the effect of a HIGH on the master reset input (nMR)? A HIGH on nMR clears the counter stages and forces the outputs LOW, independent of the clock input state.
- What are the key features of the 74HCT393D,652? Key features include wide supply voltage range, CMOS low power dissipation, high noise immunity, and compliance with JEDEC standards.
- What is the maximum clock frequency of the 74HCT393D,652? The maximum clock frequency is up to 53 MHz at VCC = 4.5 V and CL = 15 pF.
- What is the propagation delay of the 74HCT393D,652? The HIGH to LOW propagation delay is typically 24 ns at VCC = 4.5 V and CL = 15 pF.
- Is the 74HCT393D,652 suitable for high-temperature applications? Yes, it operates over a temperature range of -40°C to +125°C.
- What package type is the 74HCT393D,652 available in? It is available in a Small Outline (SO) package.
- What are some typical applications of the 74HCT393D,652? Typical applications include digital counters, frequency dividers, and other sequential logic circuits in industrial control systems, consumer electronics, and automotive applications.
