M74HC190RM13TR

Overview

• Category: Integrated Circuit
• Use: Counter/Divider
• Characteristics: High-speed operation, low power consumption
• Package: SOP-16
• Essence: 4-bit synchronous up/down counter with parallel load
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 25MHz
• Maximum Counting Frequency: 12.5MHz
• Maximum Propagation Delay: 20ns
• Maximum Quiescent Current: 8µA

Pin Configuration

The M74HC190RM13TR has a total of 16 pins arranged as follows:

__ __ QD |1 \__/ 16| VCC QC |2 15| MR QB |3 14| CP QA |4 13| PE GND |5 12| PL LD |6 11| UP/DOWN RC |7 10| CE RB |8 9| QD' ¯¯ ¯¯

Functional Features

• Synchronous counting in both up and down directions
• Parallel load capability for presetting the counter value
• Carry output for cascading multiple counters
• Asynchronous master reset for immediate counter reset
• Enable input for controlling the counting operation
• Ripple clock output for cascading multiple counters

Advantages

• High-speed operation allows for efficient counting applications
• Low power consumption makes it suitable for battery-powered devices
• Versatile functionality with both up and down counting modes
• Easy integration into existing circuit designs
• Compact SOP-16 package saves board space

Disadvantages

• Limited maximum clock and counting frequencies
• Propagation delay may affect timing-sensitive applications
• Requires external components for complete counter functionality

Working Principles

The M74HC190RM13TR is a 4-bit synchronous up/down counter with parallel load capability. It operates by incrementing or decrementing the count based on the input clock signal and the UP/DOWN control input. The counter can be preset to a specific value using the parallel load (PL) input, allowing for easy initialization.

The counter's output is available on the QA to QD pins, representing the binary count value. The carry output (RC) can be used to cascade multiple counters for higher bit counts. The counter can be reset to zero using the master reset (MR) input, which overrides all other inputs.

Detailed Application Field Plans

The M74HC190RM13TR is commonly used in various applications that require counting or dividing functions. Some potential application fields include:

1. Frequency Dividers: The counter can be used to divide an input frequency by a specific factor, enabling frequency division circuits.
2. Event Counters: It can be employed to count events or pulses generated by sensors, switches, or other devices.
3. Digital Timers: The counter can be utilized to measure time intervals by counting clock cycles.
4. Industrial Automation: It finds use in controlling and monitoring processes that require precise counting operations.
5. Communication Systems: The counter can be integrated into communication protocols for data synchronization and packet handling.

Detailed and Complete Alternative Models

1. CD40192BE: 4-bit Synchronous Up/Down Decade Counter
2. SN74LS191N: Synchronous 4-Bit Up/Down Binary Counter
3. CD4510BE: CMOS Presettable BCD Up/Down Counter

These alternative models offer similar functionality and can be used as replacements for the M74HC190RM13TR in various applications.

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