DM74ALS5245N Equivalent & Substitute Parts

Part Overview

The DM74ALS5245N is a Buffer, Non-Inverting logic IC manufactured by onsemi, featuring 1 element with 8 bits per element and 3-state output capability in a 20-DIP package. This component operates within the 4.5V to 5.5V supply voltage range and is rated for 0°C to 70°C operating temperature. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Logic Type	Buffer, Non-Inverting
Number of Elements	1
Number of Bits per Element	8
Output Type	3-State
Current - Output High	15mA
Current - Output Low	24mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	20-DIP (0.300", 7.62mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS5245N are classified based on electrical and mechanical parameter alignment:

Direct Manufacturer Substitute (SN74ALS245AN): Shares identical electrical specifications including 15mA/24mA output current, 4.5V-5.5V supply voltage, 0°C-70°C operating temperature, and 20-DIP package configuration. Differs in logic function classification (Transceiver vs. Buffer) but maintains equivalent pin configuration and electrical performance.

Similar Manufacturer Substitute (SN74ALS245A-1N): Maintains all critical electrical parameters matching the main part. Classified as Transceiver with identical output current ratings, supply voltage range, operating temperature, and 20-DIP package. Represents a variant designation within the same functional family.

Parametric Equivalent Substitute (SN74ALS541N): Matches all key electrical parameters including 15mA/24mA output current, 4.5V-5.5V supply voltage, 0°C-70°C operating temperature, and 20-DIP package. Maintains Buffer, Non-Inverting logic type classification identical to the main part.

Parameter Comparison

Parameter	DM74ALS5245N	SN74ALS245AN	SN74ALS245A-1N	SN74ALS541N
Manufacturer	onsemi	Texas Instruments	Texas Instruments	Texas Instruments
Series	74ALS	74ALS	74ALS	74ALS
Logic Type	Buffer, Non-Inverting	Transceiver, Non-Inverting	Transceiver, Non-Inverting	Buffer, Non-Inverting
Number of Elements	1	1	1	1
Number of Bits per Element	8	8	8	8
Output Type	3-State	3-State	3-State	3-State
Current - Output High, Low	15mA, 24mA	15mA, 24mA	15mA, 24mA	15mA, 24mA
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)	0°C ~ 70°C (TA)
Package / Case	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)	20-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three substitute parts maintain electrical and mechanical compatibility with the DM74ALS5245N through identical output current specifications, supply voltage range, operating temperature limits, and 20-DIP package configuration.

SN74ALS245AN and SN74ALS245A-1N are manufactured by Texas Instruments and carry Active product status with ROHS3 compliance certification. These parts are suitable for applications requiring transceiver functionality within the specified electrical parameters.

SN74ALS541N is manufactured by Texas Instruments with Active product status and ROHS3 compliance. This part maintains the Buffer, Non-Inverting logic type classification identical to the original DM74ALS5245N, providing direct functional equivalence.

All substitute options are REACH Unaffected and classified under ECCN EAR99, maintaining regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS245AN replace DM74ALS5245N in existing designs? A: Yes. Both parts share identical electrical parameters (15mA/24mA output current, 4.5V-5.5V supply voltage, 0°C-70°C operating temperature) and 20-DIP package configuration. The functional difference between Buffer and Transceiver classifications does not affect electrical compatibility at the specified parameters.

Q: What is the difference between SN74ALS245AN and SN74ALS541N? A: Both parts meet all electrical and mechanical requirements for substitution. SN74ALS245AN is classified as a Transceiver, while SN74ALS541N is classified as a Buffer, Non-Inverting, matching the original DM74ALS5245N logic type. Selection depends on circuit requirements for transceiver versus buffer functionality.

Q: Are all substitute parts available in the same package? A: Yes. All substitute parts are available in 20-DIP (0.300", 7.62mm) through-hole package, identical to the DM74ALS5245N.

Q: Do the substitute parts meet current environmental compliance standards? A: Yes. All Texas Instruments substitute parts carry ROHS3 compliance certification and REACH Unaffected status, meeting current regulatory requirements.

Q: What is the inventory status of substitute parts? A: SN74ALS245AN has 3840 pcs in stock, SN74ALS245A-1N has 3056 pcs in stock, and SN74ALS541N has 2600 pcs in stock, all listed as New Original.

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