74ACT16863DLRG4 Equivalent & Substitute Parts

Part Overview

The 74ACT16863DLRG4 is a non-inverting transceiver IC manufactured by Texas Instruments, configured as a 2-element, 9-bit per element logic device with 3-state output capability in a 56-SSOP surface mount package. This part is classified as obsolete, which necessitates identification of active equivalent alternatives for new designs and ongoing production requirements. The device operates within the 4.5V to 5.5V supply voltage range with output drive capability of 24mA for both high and low states, suitable for general-purpose digital signal buffering and bus interface applications.

Substiute Parts

74ACT16863DLRG4

Texas InstrumentsIn Stock: 96374ACT16863DLRG4 Datasheet

Current PartRFQ

74ACT16543DLR

Texas InstrumentsIn Stock: 189574ACT16543DLR Datasheet

Parametric EquivalentRFQ

74ACT16646DLR

Texas InstrumentsIn Stock: 223874ACT16646DLR Datasheet

Parametric EquivalentRFQ

74ACT16652DLR

Texas InstrumentsIn Stock: 96374ACT16652DLR Datasheet

Parametric EquivalentRFQ

74ACT16657DLR

Texas InstrumentsIn Stock: 87174ACT16657DLR Datasheet

Parametric EquivalentRFQ

74FCT162652ATPVCT

Texas InstrumentsIn Stock: 92274FCT162652ATPVCT Datasheet

Parametric EquivalentRFQ

CY74FCT162543TPVCT

Texas InstrumentsIn Stock: 1082CY74FCT162543TPVCT Datasheet

Parametric EquivalentRFQ

74ACT16863DL

Texas InstrumentsIn Stock: 84274ACT16863DL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ACT16863DLRG4 is determined by the following critical parameters: logic type (non-inverting transceiver), number of elements (2), output type (3-state), supply voltage range (4.5V ~ 5.5V), output current capability (24mA minimum for both high and low states), package type (56-BSSOP), and operating temperature range (-40°C ~ 85°C).

The primary distinction among available substitutes is the number of bits per element. The 74ACT16863DLRG4 features 9 bits per element, while most active alternatives provide 8 bits per element. The 74ACT16863DL represents a direct functional equivalent with identical bit configuration (9 bits per element) and is available in active product status with RoHS3 compliance. Substitutes with 8-bit per element configuration (74ACT16543DLR, 74ACT16646DLR, 74ACT16652DLR, 74ACT16657DLR) maintain electrical compatibility across all other critical parameters but differ in data path width. Obsolete series alternatives (74FCT162652ATPVCT, CY74FCT162543TPVCT) provide equivalent electrical performance but carry obsolete product status designation.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production transitions, the 74ACT16863DL is the primary recommended substitute. This part maintains identical functional specifications (9 bits per element) while offering active product status and ROHS3 compliance, addressing the obsolescence and regulatory limitations of the 74ACT16863DLRG4.

When 9-bit per element functionality is not a design requirement, the 74ACT16543DLR, 74ACT16646DLR, 74ACT16652DLR, and 74ACT16657DLR provide electrically compatible alternatives with 8-bit per element configuration. All four of these parts carry active product status and ROHS3 compliance certification. Selection among these four options should be based on inventory availability and packaging requirements (all are supplied in Tape & Reel format).

The 74FCT162652ATPVCT and CY74FCT162543TPVCT represent functional equivalents from the 74FCT series but carry obsolete product status designation. These parts should be considered only when existing inventory constraints or legacy system requirements necessitate their use, as they do not address the primary obsolescence concern of the original part.

Frequently Asked Questions (FAQ)

Q: Can the 74ACT16863DL directly replace the 74ACT16863DLRG4 without circuit modification?

A: Yes. The 74ACT16863DL maintains identical electrical specifications, package type (56-BSSOP), pin configuration, and functional behavior. The primary differences are product status (active versus obsolete) and RoHS compliance level. No circuit modifications are required for substitution.

Q: What is the functional difference between the 9-bit and 8-bit per element variants?

A: The 74ACT16863DLRG4 and 74ACT16863DL process 9 data bits per transceiver element, while the 74ACT16543DLR, 74ACT16646DLR, 74ACT16652DLR, and 74ACT16657DLR process 8 data bits per element. This difference affects the data path width. Selection depends on whether your application requires the full 9-bit capacity or can operate with 8-bit data paths.

Q: Are all substitute parts available in the same package type?

A: Yes. All listed substitutes utilize the 56-BSSOP (0.295", 7.50mm Width) surface mount package. Packaging format differs: the 74ACT16863DL is supplied in Tube format, while the 74ACT16543DLR, 74ACT16646DLR, 74ACT16652DLR, and 74ACT16657DLR are supplied in Tape & Reel format. The 74FCT162652ATPVCT and CY74FCT162543TPVCT do not specify packaging format in available data.

Q: Do all substitutes meet current RoHS requirements?

A: The 74ACT16863DL and all 8-bit alternatives (74ACT16543DLR, 74ACT16646DLR, 74ACT16652DLR, 74ACT16657DLR) carry ROHS3 compliance certification. The original 74ACT16863DLRG4 is RoHS non-compliant. The 74FCT series alternatives (74FCT162652ATPVCT, CY74FCT162543TPVCT) are ROHS3 compliant but carry obsolete product status.

Q: What is the inventory status of available substitutes?

A: The 74ACT16863DL has 820 units in stock. Among 8-bit alternatives, 74ACT16646DLR has the highest inventory (2200 units), followed by 74ACT16543DLR (1871 units), 74ACT16652DLR (931 units), and 74ACT16657DLR (768 units). The 74FCT162652ATPVCT has 830 units and CY74FCT162543TPVCT has 1018 units available.