74FCT162H244CTPVC Equivalent & Substitute Parts

Part Overview

The 74FCT162H244CTPVC is a non-inverting buffer IC manufactured by Texas Instruments, featuring 4 elements with 4 bits per element and 3-state output capability in a 48-SSOP package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The device operates within a 4.5V to 5.5V supply voltage range with output drive capability of 24mA for both high and low states.

Key Parameters

Parameter	Value
Manufacturer Part Number	74FCT162H244CTPVC
Manufacturer	Texas Instruments
Logic Type	Buffer, Non-Inverting
Number of Elements	4
Number of Bits per Element	4
Output Type	3-State
Current - Output High, Low	24mA, 24mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74FCT162H244CTPVC is determined by the following critical parameters:

Functional Equivalence Parameters:

Logic type: Buffer, Non-Inverting
Number of elements: 4
Number of bits per element: 4
Output type: 3-State
Package type: 48-BSSOP (0.295", 7.50mm Width)

Electrical Compatibility Parameters:

Supply voltage range: 4.5V ~ 5.5V
Output drive current: 24mA (high and low)
Operating temperature range: -40°C ~ 85°C

Substitute parts are grouped into two categories:

Category 1: Direct Parametric Equivalents maintain identical electrical specifications (voltage, current, temperature) and are sourced from alternative manufacturers or product lines. These include CY74FCT162244TPVC (Cypress Semiconductor) and 74ACT16244DL (Texas Instruments).

Category 2: Manufacturer-Recommended Alternatives provide functional equivalence with modified electrical characteristics. These include the SN74LVC162244ADLR (reduced voltage operation at 1.65V ~ 3.6V) and variants with different output drive capabilities (74FCT16244ATPVG with 32mA/64mA output).

Parameter Comparison

Part Number	Manufacturer	Supply Voltage	Output Current (High/Low)	Operating Temp	Package	Product Status	MSL
74FCT162H244CTPVC	Texas Instruments	4.5V ~ 5.5V	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Obsolete	1
SN74LVC162244ADLR	Texas Instruments	1.65V ~ 3.6V	12mA / 12mA	-40°C ~ 125°C	48-BSSOP	Active	1
CY74FCT162244TPVC	Cypress Semiconductor	4.5V ~ 5.5V	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active	Not specified
74FCT162244ATPVG8	Renesas Electronics	4.5V ~ 5.5V	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active	3
74FCT16244ATPVG	IDT	4.5V ~ 5.5V	32mA / 64mA	-40°C ~ 85°C	48-BSSOP	Active	Not specified
74FCT16244CTPAG8	Renesas Electronics	4.5V ~ 5.5V	32mA / 64mA	-40°C ~ 85°C	48-TFSOP	Obsolete	1
74FCT163244APVG	IDT	2.7V ~ 3.6V	8mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active	Not specified
74FCT163244APVG8	Renesas Electronics	2.7V ~ 3.6V	8mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active	3
74FCT163244CPVG	Renesas Electronics	2.7V ~ 3.6V	8mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active	3
74FCT163244CPVG8	Renesas Electronics	2.7V ~ 3.6V	8mA / 24mA	-40°C ~ 85°C	48-BSSOP	Active	3
74ACT16244DL	Texas Instruments	4.5V ~ 5.5V	24mA / 24mA	-40°C ~ 85°C	48-BSSOP	Last Time Buy	1

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Specifications):

CY74FCT162244TPVC from Cypress Semiconductor provides parametric equivalence with active product status, maintaining 4.5V ~ 5.5V supply voltage, 24mA output drive, and -40°C ~ 85°C operating range. This part is the preferred choice for applications requiring exact electrical compatibility with the obsolete 74FCT162H244CTPVC.

74ACT16244DL from Texas Instruments offers equivalent electrical performance but carries Last Time Buy status, limiting its suitability for new designs despite ROHS3 compliance and MSL 1 rating.

For Voltage-Reduced Applications:

SN74LVC162244ADLR from Texas Instruments is suitable for systems operating at reduced voltage levels (1.65V ~ 3.6V) with extended operating temperature range (-40°C ~ 125°C). This part features lower output drive capability (12mA) and is recommended only when voltage reduction is acceptable for the application.

For Enhanced Output Drive Requirements:

74FCT16244ATPVG from IDT and 74FCT16244CTPAG8 from Renesas provide increased output drive capability (32mA/64mA) while maintaining 4.5V ~ 5.5V supply voltage. These parts are suitable for applications requiring higher current sourcing or sinking capability. Note that 74FCT16244CTPAG8 uses 48-TFSOP package variant and carries obsolete status.

For Low-Voltage Operation:

74FCT163244 series variants (APVG, APVG8, CPVG, CPVG8) operate at 2.7V ~ 3.6V supply voltage with reduced output drive (8mA/24mA). These parts are suitable only for low-voltage system designs and are not compatible with standard 5V logic systems.

All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC162244ADLR directly replace the 74FCT162H244CTPVC in a 5V system?

A: No. The SN74LVC162244ADLR operates at 1.65V ~ 3.6V supply voltage, which is incompatible with 5V systems. Direct substitution would result in device malfunction or damage. This part is suitable only for 3.3V or lower voltage designs.

Q: What is the difference between 74FCT162244ATPVG8 and 74FCT162H244CTPVC?

A: Both parts maintain identical electrical specifications (4.5V ~ 5.5V, 24mA output drive, -40°C ~ 85°C). The primary differences are manufacturer (Renesas vs. Texas Instruments), product status (Active vs. Obsolete), and moisture sensitivity level (MSL 3 vs. MSL 1). The 74FCT162244ATPVG8 is the recommended active-status alternative.

Q: Are the 74FCT163244 variants compatible with the original part?

A: The 74FCT163244 series maintains functional equivalence (4-element, 4-bit buffer, 3-state output, 48-BSSOP package) but operates at reduced voltage (2.7V ~ 3.6V) with lower output drive (8mA/24mA). These parts are not compatible with 5V systems and should be used only in low-voltage applications.

Q: Why does 74FCT16244CTPAG8 use a different package designation (48-TFSOP vs. 48-BSSOP)?

A: The 48-TFSOP package is a thin shrink small-outline package variant with different physical dimensions (0.240" width vs. 0.295" width). While both are 48-pin packages, PCB layout and footprint compatibility must be verified before substitution. This part is also obsolete.

Q: Which substitute part offers the best long-term availability?

A: CY74FCT162244TPVC from Cypress Semiconductor is recommended for long-term availability, maintaining active product status with identical electrical specifications to the original 74FCT162H244CTPVC. All 74FCT162244ATPVG8, 74FCT163244APVG8, 74FCT163244CPVG, and 74FCT163244CPVG8 variants from Renesas also carry active status.

Q: Can I use 74FCT16244ATPVG if my application requires higher output current?

A: Yes. The 74FCT16244ATPVG provides 32mA/64mA output drive compared to the original 24mA/24mA specification, while maintaining 4.5V ~ 5.5V supply voltage and -40°C ~ 85°C operating range. This part is suitable for applications requiring enhanced current sourcing or sinking capability.

Q: Are all substitute parts ROHS3 compliant?

A: Most substitute parts listed carry ROHS3 compliance. CY74FCT162244TPVC and 74FCT16244ATPVG do not specify RoHS status in the provided data. Verify RoHS compliance with the manufacturer if regulatory certification is required for your application.

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