PI3B16245VE Bus Switch 8 x 1:1 Equivalent & Substitute Parts

Part Overview

The PI3B16245VE is an 8 x 1:1 bus switch logic IC manufactured by Diodes Incorporated in a 48-SSOP package. This component is classified as obsolete, though 755 units remain in stock. Bus switches are essential for multiplexing and signal routing applications where independent circuit control is required. The obsolete status necessitates identification of active equivalent parts to ensure long-term design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI3B16245VE
Manufacturer	Diodes Incorporated
Type	Bus Switch
Circuit Configuration	8 x 1:1
Independent Circuits	2
Voltage Supply	3V ~ 3.6V
Operating Temperature Range	-40°C ~ 85°C
Package Type	48-BSSOP (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Compliance	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the PI3B16245VE is determined by the following critical parameters:

Circuit configuration: 8 x 1:1 topology with 2 independent circuits
Voltage supply range compatibility: Minimum 3V operation required
Operating temperature range: -40°C ~ 85°C
Package compatibility: 48-pin surface mount variants
RoHS3 compliance and MSL Level 1 certification

Substitute parts are grouped into two categories based on package type:

Category 1: 48-SSOP Package (Direct Pin-Compatible) Parts maintaining the original 48-BSSOP footprint (0.295", 7.50mm width) provide direct PCB compatibility without layout modifications.

Category 2: 48-TSSOP/48-TVSOP Packages (Functional Equivalents) Parts with alternative 48-pin packages (48-TFSOP at 0.240", 6.10mm or 48-TVSOP at 0.173", 4.40mm width) provide electrical equivalence but require PCB layout adjustment due to different pin pitch and body dimensions.

Parameter Comparison

Part Number	Manufacturer	Circuit Config	Voltage Supply	Operating Temp	Package Type	Package Dimensions	Product Status	Inventory
PI3B16245VE	Diodes Incorporated	8 x 1:1	3V ~ 3.6V	-40°C ~ 85°C	48-BSSOP	0.295" x 7.50mm	Obsolete	755 Pcs
74CBTLV16245PAG	Renesas Electronics	8 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	48-TFSOP	0.240" x 6.10mm	Active	1334 Pcs
74CBTLV16245PAG8	Renesas Electronics	8 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	48-TFSOP	0.240" x 6.10mm	Active	902 Pcs
SN74CB3Q16245DGGR	Texas Instruments	8 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	48-TFSOP	0.240" x 6.10mm	Active	2100 Pcs
SN74CB3Q16245DGVR	Texas Instruments	8 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	48-TVSOP	0.173" x 4.40mm	Active	2000 Pcs
SN74CB3Q16245DL	Texas Instruments	8 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	48-BSSOP	0.295" x 7.50mm	Active	817 Pcs
SN74CB3Q16245DLR	Texas Instruments	8 x 1:1	2.3V ~ 3.6V	-40°C ~ 85°C	48-BSSOP	0.295" x 7.50mm	Active	22705 Pcs

Engineering Selection Recommendations

Direct Replacement (No PCB Modification Required):

SN74CB3Q16245DLR and SN74CB3Q16245DL are the primary substitutes for PI3B16245VE. Both maintain the 48-BSSOP package footprint, ensuring pin-for-pin compatibility without PCB layout changes. SN74CB3Q16245DLR offers superior inventory availability (22,705 units) and is supplied in Tape & Reel format for automated assembly. Both parts are active products with ROHS3 compliance and MSL Level 1 certification, matching the original part's environmental specifications.

Functional Equivalents (PCB Layout Modification Required):

74CBTLV16245PAG8, 74CBTLV16245PAG, and SN74CB3Q16245DGGR provide electrical equivalence with extended voltage supply range (2.3V ~ 3.6V versus 3V ~ 3.6V). These parts use 48-TFSOP packages with reduced body width (0.240" versus 0.295"), requiring PCB footprint redesign. SN74CB3Q16245DGVR offers the most compact footprint (48-TVSOP, 0.173" width) for space-constrained applications but demands significant PCB layout modification.

All substitute parts maintain identical circuit configuration (8 x 1:1 with 2 independent circuits), operating temperature range (-40°C ~ 85°C), and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can SN74CB3Q16245DLR be used as a direct replacement for PI3B16245VE without PCB modifications?

A: Yes. Both parts use the 48-BSSOP package with identical pin pitch and body dimensions (0.295" x 7.50mm). No PCB layout changes are required. Electrical specifications are compatible within the operating parameters.

Q: What is the key difference between 48-BSSOP and 48-TFSOP packages?

A: The 48-BSSOP package has a body width of 0.295" (7.50mm), while 48-TFSOP is narrower at 0.240" (6.10mm). Pin pitch remains consistent, but the reduced body width of TFSOP requires PCB footprint redesign. TVSOP packages are even narrower at 0.173" (4.40mm).

Q: Why does SN74CB3Q16245DLR have a lower voltage supply minimum (2.3V) compared to PI3B16245VE (3V)?

A: The extended voltage range of substitute parts provides broader operational flexibility. The PI3B16245VE minimum of 3V is within the SN74CB3Q16245DLR operating range, ensuring full compatibility for existing designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL Level 1 rating, matching the environmental and regulatory status of the original PI3B16245VE.

Q: Which substitute part offers the best inventory availability?

A: SN74CB3Q16245DLR provides the highest inventory level at 22,705 units in Tape & Reel format, supporting high-volume production requirements.

Q: Can 74CBTLV16245PAG8 and 74CBTLV16245PAG be used interchangeably?

A: Both parts are electrically identical with the same circuit configuration and electrical specifications. The primary difference is packaging format: PAG8 is supplied in Cut Tape, while PAG is supplied in Tube. Selection depends on assembly process requirements.

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