TCA9534DGVR Equivalent & Substitute Parts

Part Overview

The TCA9534DGVR is an 8-bit I/O expander interface component manufactured by Texas Instruments, currently in active product status with ROHS3 compliance. This component is utilized in applications requiring I2C-based I/O expansion. Substitute parts are identified based on matching functional parameters including I/O count, interface protocol, clock frequency, and electrical specifications to ensure direct functional equivalence in system designs.

Substiute Parts

TCA9534DGVR

Texas InstrumentsIn Stock: 829TCA9534DGVR Datasheet

Current PartRFQ

MAX7324AEG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1149MAX7324AEG+ Datasheet

SimilarRFQ

MAX7324ATG+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1015MAX7324ATG+T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TCA9534DGVR are qualified based on the following critical parameters:

• Number of I/O: 8-bit configuration
• Interface Protocol: I2C communication standard
• Clock Frequency: 400 kHz operation
• Voltage Supply Range: 1.71V ~ 5.5V compatibility
• Operating Temperature Range: -40°C ~ 125°C
• Output Type: Push-Pull configuration
• Current Output Capability: 20mA source/sink
• Interrupt Output: Presence of interrupt functionality
• Features: Power-On Reset (POR) capability
• Compliance: ROHS3 and REACH status alignment

The identified substitutes maintain functional equivalence across these parameters while offering alternative packaging options to accommodate different assembly and integration requirements.

Parameter Comparison

Engineering Selection Recommendations

Both MAX7324AEG+ and MAX7324ATG+T substitutes maintain full electrical and functional equivalence to the TCA9534DGVR across all specified parameters. Selection between these alternatives is determined by packaging and assembly requirements:

MAX7324AEG+ is supplied in Tube packaging with 24-SSOP (0.154", 3.90mm Width) case format, suitable for manual assembly and lower-volume production workflows.

MAX7324ATG+T is supplied in Tape & Reel (TR) packaging with 24-TQFN (4x4) case format with exposed pad, optimized for automated pick-and-place assembly and high-volume manufacturing processes.

All three parts maintain active product status and full compliance with ROHS3 and REACH regulations, ensuring regulatory alignment for current and future applications.

Frequently Asked Questions (FAQ)

Q: What determines functional equivalence between the TCA9534DGVR and its substitutes?

A: Functional equivalence is established through matching I/O count (8-bit), interface protocol (I2C 400 kHz), electrical specifications (1.71V ~ 5.5V supply, 20mA output capability), operating temperature range (-40°C ~ 125°C), and feature set (Push-Pull output, interrupt output, POR).

Q: Are there differences in package formats between the substitutes?

A: Yes. The MAX7324AEG+ uses 24-SSOP packaging in Tube format, while the MAX7324ATG+T uses 24-TQFN (4x4) packaging in Tape & Reel format. Package selection depends on assembly methodology and production volume requirements.

Q: Do all parts meet the same compliance standards?

A: All three parts are ROHS3 compliant and REACH unaffected. The MAX7324 variants specify MSL Level 1 (Unlimited), while the TCA9534DGVR MSL is vendor undefined.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical and functional interchangeability is confirmed across all specified parameters. Physical interchangeability depends on PCB layout compatibility with the selected package format.