74F193PC Binary Counter IC Equivalent & Substitute Parts

Part Overview

The 74F193PC is a 4-bit binary counter IC manufactured by onsemi, housed in a 16-DIP package. This component functions as a synchronous up/down counter with asynchronous reset capability, designed for digital logic applications requiring counting operations. The 74F193PC is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance, repairs, and legacy design support.

Substiute Parts

74F193PC

onsemiIn Stock: 181274F193PC Datasheet

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SN74LS193N

onsemiIn Stock: 6160SN74LS193N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F193PC is determined by the following critical parameters:

• Logic Function: Binary counter with 4-bit capacity, up/down counting direction, and positive edge triggering
• Package Compatibility: 16-DIP (0.300", 7.62mm) through-hole mounting
• Electrical Characteristics: Supply voltage range, count rate capability, and asynchronous reset functionality
• Pin Configuration: Identical pinout required for direct replacement

The SN74LS193N qualifies as a substitute based on matching logic function, package type, pin configuration, and core electrical parameters. Both devices operate as 4-bit binary counters with identical direction control and reset mechanisms.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS193N serves as a functional substitute for the 74F193PC in applications where the reduced count rate of 32 MHz is acceptable. Both devices are obsolete products, indicating limited availability through standard distribution channels.

Selection between these parts depends on system timing requirements. The 74F193PC operates at 125 MHz maximum count rate, while the SN74LS193N operates at 32 MHz. Applications requiring the full 125 MHz performance cannot use the SN74LS193N as a direct substitute.

Both devices share identical supply voltage operating ranges within their respective specifications (74F193PC: 4.5 V ~ 5.5 V; SN74LS193N: 4.75 V ~ 5.25 V), compatible operating temperature ranges, and package configurations. The 74F193PC carries REACH Unaffected status, while the SN74LS193N is RoHS non-compliant.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS193N directly replace the 74F193PC?

A: The SN74LS193N provides functional substitution for applications operating at count rates of 32 MHz or below. Pin configuration and package type are identical. Applications requiring count rates above 32 MHz cannot use this substitute.

Q: What are the key differences between these parts?

A: The primary difference is maximum count rate: 74F193PC operates at 125 MHz, while SN74LS193N operates at 32 MHz. Supply voltage ranges differ slightly (74F193PC: 4.5 V ~ 5.5 V; SN74LS193N: 4.75 V ~ 5.25 V). Both maintain identical logic function, package type, and pin configuration.

Q: Are both parts still available for purchase?

A: Both the 74F193PC and SN74LS193N are classified as obsolete. Availability is limited to existing inventory through component distributors. The SN74LS193N currently has higher inventory availability (6100 pcs) compared to the 74F193PC (1708 pcs).

Q: What is the package type for these counters?

A: Both devices use 16-DIP (0.300", 7.62mm) through-hole packaging, enabling direct socket replacement when electrical parameters are compatible.

Q: How do I determine if the SN74LS193N will work in my application?

A: Verify that your application's maximum required count rate does not exceed 32 MHz. Confirm that the supply voltage range 4.75 V ~ 5.25 V is compatible with your system. Verify that the 16-DIP through-hole package is acceptable for your PCB design.