P82B96D Equivalent & Substitute Parts

Part Overview

The P82B96D is a Buffer, ReDriver interface IC manufactured by Texas Instruments, designed for I2C applications with 2-channel 400kHz capability in an 8-SOIC package. This part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for applications requiring I2C signal conditioning and bus extension.

Key Parameters

Parameter	P82B96D Value
Manufacturer	Texas Instruments
Type	Buffer, ReDriver
Applications	I2C
Number of Channels	2
Data Rate (Max)	400kHz
Input/Output	2-Wire Bus
Voltage - Supply	2V ~ 15V
Current - Supply	4mA
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Last Time Buy

Substitute Part Grouping Explanation

Substitution of the P82B96D is determined by the following critical parameters:

Primary Substitution Criteria:

Number of Channels (2-channel requirement)
Data Rate capability (400kHz minimum)
Input/Output configuration (2-Wire Bus I2C)
Voltage supply range compatibility (2V ~ 15V overlap)
Operating temperature range (-40°C ~ 85°C)
Package compatibility (8-SOIC or equivalent footprint)
RoHS3 compliance and MSL rating

Substitution Categories:

Category 1: Direct Functional Equivalents (Same Package, Same Specifications)

P82B96DR: Texas Instruments, Active status, identical electrical specifications, Cut Tape packaging
P82B96TD,118: NXP USA Inc., Active status, 2-channel 400kHz, 8-SO package, 900µA supply current
P82B96TD/S900,118: NXP USA Inc., Active status, optimized supply current variant

Category 2: Enhanced Performance Alternatives (Higher Data Rate)

PCA9600D,118: NXP USA Inc., 1-channel 1MHz capability, higher performance for I2C applications requiring extended bandwidth
PCA9601D,118: NXP USA Inc., 1-channel 1MHz capability, Tape & Reel packaging variant

Category 3: Package Variants (Different Form Factor)

PCA9507DP,118: NXP USA Inc., 1-channel 400kHz, 8-TSSOP package, HDMI/I2C applications
PCA9508DP,118: NXP USA Inc., 1-channel 400kHz, 8-TSSOP package, I2C Hotswap applications
PCA9509DP,118: NXP USA Inc., 2-channel 400kHz, 8-TSSOP package, reduced supply current (3mA)

Parameter Comparison

Part Number	Manufacturer	Channels	Data Rate (Max)	Voltage Supply	Current Supply	Package	Product Status	Capacitance Input
P82B96D	Texas Instruments	2	400kHz	2V ~ 15V	4mA	8-SOIC	Last Time Buy	4 pF
P82B96DR	Texas Instruments	2	400kHz	2V ~ 15V	4mA	8-SOIC	Active	4 pF
P82B96TD,118	NXP USA Inc.	2	400kHz	2V ~ 15V	900µA	8-SO	Active	7 pF
P82B96TD/S900,118	NXP USA Inc.	2	400kHz	2V ~ 15V	900µA	8-SO	Active	7 pF
P82B96TD/S911,118	NXP USA Inc.	2	400kHz	2V ~ 15V	900µA	8-SO	Active	7 pF
PCA9600D,118	NXP USA Inc.	1	1MHz	2.5V ~ 15V	5.2mA	8-SO	Active	10 pF
PCA9601D,118	NXP USA Inc.	1	1MHz	2.5V ~ 15V	5.5mA	8-SO	Active	10 pF
PCA9507DP,118	NXP USA Inc.	1	400kHz	2.7V ~ 5.5V	1mA	8-TSSOP	Active	6 pF
PCA9508DP,118	NXP USA Inc.	1	400kHz	2.7V ~ 5.5V	1mA	8-TSSOP	Active	5.2 pF
PCA9509DP,118	NXP USA Inc.	2	400kHz	3V ~ 5.5V	3mA	8-TSSOP	Active	2 pF

Engineering Selection Recommendations

Primary Recommendation: P82B96DR The P82B96DR is the direct successor to the P82B96D, manufactured by Texas Instruments with Active product status. It maintains identical electrical specifications, channel count, data rate, and supply voltage range. The only difference is packaging format (Cut Tape & Digi-Reel versus Tube), making this the optimal choice for designs requiring no circuit modifications. This part offers the highest inventory availability (37,600 units) and ensures continuity with the original design intent.

Secondary Recommendation: P82B96TD,118 or P82B96TD/S900,118 These NXP USA Inc. parts provide 2-channel 400kHz I2C functionality with Active product status and superior long-term availability. The primary trade-off is reduced supply current (900µA versus 4mA), which benefits power-constrained applications. The 8-SO package is mechanically compatible with 8-SOIC footprints in most PCB designs. These parts are suitable for applications where lower power consumption is beneficial and the slightly higher input capacitance (7 pF) does not impact signal integrity.

Alternative for Power-Optimized Designs: PCA9509DP,118 For applications where 2-channel I2C functionality is required and the design can accommodate a different package (8-TSSOP), the PCA9509DP,118 offers the lowest supply current (3mA) and lowest input capacitance (2 pF). This part requires PCB layout changes due to package differences but provides superior electrical performance for low-power I2C bus extension.

Not Recommended for Direct Substitution: PCA9600D,118 and PCA9601D,118 These single-channel parts do not meet the 2-channel requirement of the P82B96D and are suitable only for applications where channel reduction is acceptable.

Not Recommended for Direct Substitution: PCA9507DP,118 and PCA9508DP,118 These single-channel parts do not meet the 2-channel requirement and feature restricted voltage supply ranges (2.7V ~ 5.5V), incompatible with the original 2V ~ 15V specification.

Frequently Asked Questions (FAQ)

Q: Can I use a single-channel part like PCA9600D,118 as a substitute for the 2-channel P82B96D? A: No. The P82B96D is a 2-channel device. Single-channel alternatives require circuit redesign and are not direct substitutes. Use only if your application can be modified to operate with one I2C channel.

Q: What is the difference between P82B96DR and P82B96D? A: Both are Texas Instruments parts with identical electrical specifications. The primary difference is packaging: P82B96D is supplied in Tube format, while P82B96DR is supplied in Cut Tape & Digi-Reel format. Electrical performance and pin configuration are identical.

Q: Is the P82B96TD,118 from NXP a direct replacement? A: The P82B96TD,118 is functionally equivalent for 2-channel 400kHz I2C applications. It maintains the same channel count, data rate, and voltage supply range. The 8-SO package is mechanically compatible with 8-SOIC footprints. The primary difference is reduced supply current (900µA versus 4mA), which is advantageous for power-sensitive designs.

Q: Why does the PCA9509DP,118 have lower supply current than the P82B96D? A: The PCA9509DP,118 uses a different package technology (8-TSSOP versus 8-SOIC) and represents a more recent design generation. Lower supply current reflects improved semiconductor process efficiency. This part is suitable for applications where package changes are acceptable.

Q: Can I use PCA9507DP,118 or PCA9508DP,118 as substitutes? A: These are single-channel parts and do not meet the 2-channel requirement of the P82B96D. Additionally, their voltage supply range (2.7V ~ 5.5V) is more restricted than the original (2V ~ 15V). Use only if your application requires single-channel operation and operates within the 2.7V ~ 5.5V range.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All parts listed maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with modern manufacturing and environmental standards.

Q: What is the impact of different input capacitance values? A: Input capacitance affects I2C bus loading and signal integrity at higher frequencies. The P82B96D has 4 pF input capacitance. Substitutes range from 2 pF (PCA9509DP,118) to 10 pF (PCA9600D,118). For standard 400kHz I2C applications, these variations are within acceptable limits. For designs operating near maximum frequency or with heavily loaded buses, verify signal integrity with the specific substitute part's datasheet.

Q: Which substitute offers the best long-term availability? A: P82B96DR (Texas Instruments, Active status, 37,600 units in stock) and P82B96TD,118 (NXP USA Inc., Active status, 69,200 units in stock) both offer strong availability. The P82B96TD,118 has the highest current inventory level.

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