Logic - Counters, Dividers

Part Number	Description / PDF	Quantity
TC74HC4040AF(EL,F) Toshiba Electronic Devices and Storage Corporation	IC COUNTER BIN 12 STAGE 16SOP	0
74HC393D Toshiba Electronic Devices and Storage Corporation	IC DUAL 4BIT BINARY COUNT 14SOIC	1119
74VHC4040FT Toshiba Electronic Devices and Storage Corporation	IC COUNTER BIN 12STAGE 16-TSSOP	30960
TC74VHC4040F(E,K,F Toshiba Electronic Devices and Storage Corporation	IC COUNTER BIN 12 STAGE 16SOP	0
74VHC393FT Toshiba Electronic Devices and Storage Corporation	IC COUNTER BINARY DUAL 14-TSSOP	5848
TC74VHC4040FK(EL,K Toshiba Electronic Devices and Storage Corporation	IC COUNTER BIN 12 STAGE 16VSSOP	0
74VHC4020FT Toshiba Electronic Devices and Storage Corporation	X34 PB-F BINARY COUNTER COUNTER	3604
74VHC163FT Toshiba Electronic Devices and Storage Corporation	X31 PB-F VHS TSSOP 16 CMOS LOGIC	1292
TC74VHC393FT(EL,M) Toshiba Electronic Devices and Storage Corporation	IC COUNTER BINARY DUAL 14-TSSOP	0
TC74HC592APF Toshiba Electronic Devices and Storage Corporation	IC COUNTER/REG CMOS 8-BIT 16DIP	0
TC74HC590AP(F) Toshiba Electronic Devices and Storage Corporation	IC COUNTER/REG CMOS 8-BIT 16DIP	0

Logic - Counters, Dividers

1. Overview

Logic counters and dividers are digital integrated circuits designed to process clock signals by counting pulses or dividing frequencies. Counters increment or decrement stored values based on input clocks, while dividers reduce input signal frequencies by integer ratios. These ICs serve as fundamental components in timing control, frequency synthesis, and system synchronization. Their importance spans across modern electronics, including communication systems, automotive control units, and industrial automation, where precise signal manipulation is critical.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Synchronous Counters	Clock signals control all flip-flops simultaneously	Digital clocks, frequency dividers
Asynchronous Counters	Cascaded flip-flops with ripple carry	Low-speed counters, event counting
Up/Down Counters	Selectable counting direction via control signals	Motion control, bidirectional timers
Frequency Dividers	Programmable division ratios (1/N)	RF transceivers, phase-locked loops

3. Structure and Composition

Typical logic counters/dividers consist of:

CMOS/TTL logic gates for control logic
D-type flip-flops for data storage
Cascaded binary/decade counting stages
Input/output buffers for signal integrity

Common packages: 14/16-pin DIP, SOIC, TSSOP. Semiconductor materials use silicon with advanced node processes (e.g., 90nm CMOS).

4. Key Technical Specifications

Parameter	Description
Maximum Counting Frequency	Determines operational speed limit (DC to 160MHz)
Counting Range	4-bit to 12-bit resolution options
Supply Voltage	Operating range (1.8V-5.5V for CMOS variants)
Propagation Delay	Critical for timing accuracy (10-50ns typical)
Quiescent Current	Power efficiency indicator (<1 A to 30mA)

5. Application Areas

Telecommunications: 5G base stations, optical transceivers
Consumer Electronics: Smartphones, smartwatches
Automotive: Engine control units, ADAS sensors
Industrial: PLCs, CNC machine controllers

6. Leading Manufacturers and Products

Manufacturer	Representative Products
TI (Texas Instruments)	SN74HC163 (4-bit binary counter)
STMicroelectronics	CD4040 (12-stage ripple counter)
Infineon Technologies	CY2309 (clock divider IC)
NXP Semiconductors	74VHC164 (high-speed divider)

7. Selection Guidelines

Key considerations:

Match counting range with system bit-width requirements
Verify maximum operating frequency against clock sources
Optimize power consumption via supply voltage selection
Choose package type based on PCB space constraints
Assess temperature ratings for industrial/automotive environments

8. Industry Trends Analysis

Current development trends include:

Transition to sub-1V supply voltages for mobile applications
Integration with phase-locked loop (PLL) circuits
Adoption of FinFET technology for >100MHz counters
Emerging use in IoT edge devices for signal preprocessing

Market demand grows at 4.2% CAGR driven by 5G infrastructure and automotive electrification.