Overview
The CD74HC4520M96 is a dual binary up-counter produced by Texas Instruments. This component is part of the 74HC series, known for its high-speed CMOS logic. It consists of two independent internally synchronous 4-stage counters, each made up of D-type flip-flops. The counters can be incremented on either the positive-going or the negative-going transition of the CLOCK input. The device is cleared by high levels on the MASTER RESET lines and can be cascaded in ripple mode by connecting the Q3 output to the ENABLE input of the subsequent counter.
Key Specifications
| Parameter | Symbol | Test Conditions | Units | Min | Max | |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | - | V | 2 | - | 6 |
| Operating Temperature Range | - | - | °C | -55 | - | 125 |
| High Level Input Voltage | VIH | VCC = 5V | V | 1.5 | - | 5 |
| Low Level Input Voltage | VIL | VCC = 5V | V | 0.5 | - | 1.8 |
| High Level Output Voltage (CMOS Loads) | VOH | VIH or VIL | V | 1.9 | - | 4.4 |
| Low Level Output Voltage (CMOS Loads) | VOL | VIH or VIL | V | 0.02 | - | 0.1 |
| Maximum Clock Frequency | fMAX | VCC = 5V | MHz | 24 | - | 30 |
| Clock Pulse Width | tW | VCC = 5V | ns | 20 | - | 30 |
| Master Reset Pulse Width | tW | VCC = 5V | ns | 25 | - | 30 |
| Propagation Delay (CP to Qn) | tPLH, tPHL | CL = 50pF | ns | 48 | - | 60 |
| Input Capacitance | CIN | - | pF | - | - | 10 |
| Package Type | - | - | - | - | - | 16-SOIC |
Key Features
- Positive or Negative Edge Triggering: The counters can be incremented on either the positive-going or the negative-going transition of the CLOCK input.
- Synchronous Internal Carry Propagation: Ensures synchronized counting within the device.
- Wide Operating Temperature Range: Operates from -55°C to 125°C.
- Balanced Propagation Delay and Transition Times: Provides consistent timing characteristics.
- Significant Power Reduction: Compared to LSTTL logic ICs, these devices consume less power.
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V for HC types.
- Direct LSTTL Input Logic Compatibility: For HCT types, with VIL = 0.8V (Max) and VIH = 2V (Min).
- CMOS Input Compatibility: Il ≤1µA at VOL, VOH.
- Fanout Capability: Supports up to 10 LSTTL loads for standard outputs and up to 15 LSTTL loads for bus driver outputs.
Applications
- Counting Circuits: Ideal for applications requiring binary counting, such as in digital counters, timers, and sequencers.
- Timing and Synchronization: Used in circuits where synchronized counting is necessary, such as in clock circuits and timing generators.
- Automated Systems: Suitable for use in automated systems that require precise counting and timing, such as in industrial control systems.
- Communication Systems: Can be used in communication systems for data transmission and reception timing.
- Consumer Electronics: Used in various consumer electronics devices that require counting and timing functions, such as in audio and video equipment.
Q & A
- What is the operating voltage range of the CD74HC4520M96?
The operating voltage range is from 2V to 6V.
- What is the operating temperature range of the CD74HC4520M96?
The operating temperature range is from -55°C to 125°C.
- Can the CD74HC4520M96 be incremented on both positive and negative clock edges?
- What is the maximum clock frequency for the CD74HC4520M96 at VCC = 5V?
The maximum clock frequency is up to 30 MHz.
- How many LSTTL loads can the standard outputs of the CD74HC4520M96 drive?
The standard outputs can drive up to 10 LSTTL loads.
- Is the CD74HC4520M96 RoHS compliant?
- What is the package type of the CD74HC4520M96?
The package type is 16-SOIC.
- Can the CD74HC4520M96 be cascaded in ripple mode?
- What is the input capacitance of the CD74HC4520M96?
The input capacitance is up to 10 pF.
- Does the CD74HC4520M96 contain any Substances of Very High Concern (SVHC) under REACH regulations?
No, the CD74HC4520M96 does not contain any SVHCs above the threshold concentration.
