74HC193N,652 Binary Counter IC Equivalent & Substitute Parts

Part Overview

The 74HC193N,652 is a 4-bit binary counter IC manufactured by NXP USA Inc., designed for up/down counting applications with synchronous timing and positive edge triggering. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The part operates across a 2V to 6V supply range with a maximum count rate of 49 MHz and supports asynchronous reset functionality. Identifying compatible alternatives ensures design flexibility and supply chain reliability.

Substiute Parts

74HC193N,652

NXP USA Inc.In Stock: 107974HC193N,652 Datasheet

Current PartRFQ

CD74HC193E

Texas InstrumentsIn Stock: 1823CD74HC193E Datasheet

DirectRFQ

SN74HC193N

Texas InstrumentsIn Stock: 13574SN74HC193N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC193N,652 is determined by the following critical parameters:

• Logic Type: Binary Counter (4-bit configuration)
• Directional capability: Up/Down counting
• Reset mechanism: Asynchronous reset
• Timing architecture: Synchronous operation
• Trigger sensitivity: Positive edge activation
• Supply voltage range: 2V to 6V compatibility
• Physical package: 16-DIP form factor with 0.300" (7.62mm) pitch
• Mounting method: Through-hole technology

Both identified substitute parts—CD74HC193E and SN74HC193N—share the same base product number (74HC193) and maintain functional equivalence across all core counter specifications. Variations in count rate and operating temperature ranges represent performance differences within acceptable substitution parameters.

Parameter Comparison

Engineering Selection Recommendations

The 74HC193N,652 is obsolete; therefore, substitution with active-status alternatives is necessary for ongoing production and new designs. Both CD74HC193E and SN74HC193N are manufactured by Texas Instruments and maintain active product status, ensuring long-term availability and supply chain stability.

CD74HC193E offers the widest operating temperature range (-55°C to 125°C) and represents the optimal choice for applications requiring extended low-temperature performance. SN74HC193N provides a standard industrial temperature range (-40°C to 85°C) with the highest inventory availability (13,552 pieces in stock).

All three parts maintain ROHS3 compliance and identical supply voltage specifications (2V to 6V). Count rate differences (49 MHz, 29 MHz, and 24 MHz respectively) are non-critical for most digital logic applications and do not affect functional substitution. Pin-compatible 16-DIP packaging ensures direct board-level replacement without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can CD74HC193E and SN74HC193N be used interchangeably with 74HC193N,652?

A: Yes. Both parts share identical logic functionality, counter configuration (4-bit up/down), reset mechanism (asynchronous), and package form factor (16-DIP). All three parts operate within the same 2V to 6V supply voltage range and support positive edge triggering.

Q: What is the significance of the count rate differences (49 MHz vs. 29 MHz vs. 24 MHz)?

A: Count rate represents the maximum frequency at which the counter can operate. The 74HC193N,652 specification of 49 MHz is the highest among the three parts. For most digital logic applications operating at standard clock frequencies (typically under 10 MHz), the lower count rates of the substitute parts do not present functional limitations.

Q: Are there temperature range considerations for substitution?

A: The 74HC193N,652 operates from -40°C to 125°C. CD74HC193E extends the lower limit to -55°C, suitable for industrial and military applications. SN74HC193N maintains the -40°C lower limit but restricts the upper limit to 85°C. Application-specific temperature requirements should guide selection.

Q: Is the 16-DIP package identical across all three parts?

A: Yes. All three parts use the 16-DIP (0.300", 7.62mm) through-hole package. Pin assignments and physical dimensions are identical, enabling direct board-level substitution without PCB redesign.

Q: What is the compliance status of these parts?

A: All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and distribution.