PI5C16245A Bus Switch 8x1:1 Equivalent & Substitute Parts

Part Overview

The PI5C16245A is an 8x1:1 bus switch logic IC manufactured by Diodes Incorporated in a 48-TSSOP package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. Texas Instruments offers multiple compatible alternatives within the 74CBT series that maintain functional equivalence while providing active product status and improved compliance certifications.

Key Parameters

Parameter	Value
Type	Bus Switch
Circuit Configuration	8 x 1:1
Independent Circuits	2
Voltage Supply Source	Single Supply
Voltage - Supply Range	4.5V ~ 5.5V
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	Non-compliant

Substitute Part Grouping Explanation

Substitution for the PI5C16245A is determined by the following critical parameters:

Circuit configuration: 8 x 1:1 topology with 2 independent circuits
Voltage supply compatibility: Single supply operation within 4V to 5.5V range
Operating temperature range: -40°C to 85°C
Mounting type: Surface mount technology
Moisture sensitivity: MSL 1 (Unlimited)

All Texas Instruments SN74CBT16245 variants meet these core requirements. Substitutes differ only in package type (TSSOP, TVSOP, SSOP) and packaging format (Tape & Reel, Cut Tape, Tube), which do not affect electrical functionality. The voltage supply range for Texas Instruments parts extends to 4V minimum, providing broader compatibility than the original specification.

Parameter Comparison

Parameter	PI5C16245A	SN74CBT16245DGGR	SN74CBT16245CDGGR	SN74CBT16245CDGVR	SN74CBT16245CDL	SN74CBT16245CDLR	SN74CBT16245DL	SN74CBT16245DLR
Manufacturer	Diodes Inc.	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Type	Bus Switch	Bus Switch	Bus Switch	Bus Switch	Bus Switch	Bus Switch	Bus Switch	Bus Switch
Circuit Configuration	8 x 1:1	8 x 1:1	8 x 1:1	8 x 1:1	8 x 1:1	8 x 1:1	8 x 1:1	8 x 1:1
Independent Circuits	2	2	2	2	2	2	2	2
Voltage Supply Source	Single Supply	Single Supply	Single Supply	Single Supply	Single Supply	Single Supply	Single Supply	Single Supply
Voltage - Supply	4.5V ~ 5.5V	4V ~ 5.5V	4V ~ 5.5V	4V ~ 5.5V	4V ~ 5.5V	4V ~ 5.5V	4V ~ 5.5V	4V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	48-TFSOP (0.240", 6.10mm)	48-TFSOP (0.240", 6.10mm)	48-TFSOP (0.240", 6.10mm)	48-TFSOP (0.173", 4.40mm)	48-BSSOP (0.295", 7.50mm)	48-BSSOP (0.295", 7.50mm)	48-BSSOP (0.295", 7.50mm)	48-BSSOP (0.295", 7.50mm)
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Last Time Buy	Active	Active	Active	Active	Last Time Buy	Last Time Buy

Engineering Selection Recommendations

For new designs, SN74CBT16245CDGGR is the primary recommended substitute. This part maintains identical package dimensions (48-TFSOP, 0.240" width) to the PI5C16245A, ensuring direct PCB compatibility without layout modifications. It carries Active product status and ROHS3 compliance certification, supporting long-term supply chain stability and regulatory requirements.

SN74CBT16245CDGVR provides an alternative for space-constrained applications, featuring a narrower 48-TVSOP package (0.173" width) while maintaining all electrical specifications. This variant is also Active status with ROHS3 compliance.

For applications requiring different packaging formats, SN74CBT16245CDLR (Tape & Reel, 48-SSOP) and SN74CBT16245CDL (Tube, 48-SSOP) offer Active product status with ROHS3 compliance. These parts use a wider 48-BSSOP package (0.295" width) and require PCB layout adjustment.

Parts designated Last Time Buy status (SN74CBT16245DGGR, SN74CBT16245DL, SN74CBT16245DLR) remain functionally equivalent but face eventual discontinuation and should be avoided for new production designs.

Frequently Asked Questions (FAQ)

Q: Can SN74CBT16245 variants directly replace PI5C16245A without circuit modifications?

A: Yes, all SN74CBT16245 variants are electrically equivalent. Direct replacement depends on package type. SN74CBT16245DGGR and SN74CBT16245CDGGR use identical 48-TFSOP packaging and require no PCB changes. TVSOP and SSOP variants require PCB layout modifications due to different package dimensions.

Q: What is the difference between packaging formats (Tape & Reel, Cut Tape, Tube)?

A: Packaging format affects delivery and handling only. Tape & Reel (TR) and Cut Tape (CT) are for automated assembly lines. Tube packaging is for manual handling. Electrical performance is identical across all formats.

Q: Why do Texas Instruments parts specify 4V minimum supply voltage while PI5C16245A specifies 4.5V?

A: The SN74CBT16245 series supports a broader voltage range (4V to 5.5V) than the original part. This extended range provides greater design flexibility and does not affect compatibility with 4.5V to 5.5V applications.

Q: Which substitute should be selected for new production?

A: SN74CBT16245CDGGR is the recommended choice for new designs. It maintains package compatibility with the original PI5C16245A, carries Active product status, and meets ROHS3 compliance requirements.

Q: Are there functional differences between Active and Last Time Buy status parts?

A: No functional differences exist. Last Time Buy designation indicates the manufacturer will discontinue the part after existing inventory is depleted. For new designs, Active status parts ensure long-term availability.

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