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HomeProductsIntegrated Circuits (ICs)MemoryCAT93C46V-TE13
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CAT93C46V-TE13 - Catalyst Semiconductor Inc.

Manufacturer Part Number
CAT93C46V-TE13
Manufacturer
onsemi
Allelco Part Number
32D-CAT93C46V-TE13
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
13,950 pcs available, New & Original
Parts Description
IC EEPROM 1KBIT MICROWIRE 8SOIC
Package
8-SOIC
Data sheet
-
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 13950
  • Unit Price: $2.08
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.08 $2.08
200+ $0.83 $166.00
500+ $0.802 $401.00
1000+ $0.789 $789.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

CAT93C46V-TE13 Tech Specifications
Catalyst Semiconductor Inc. - CAT93C46V-TE13 technical specifications, attributes, parameters and parts with similar specifications to Catalyst Semiconductor Inc. - CAT93C46V-TE13

Product Attribute Attribute Value
Manufacturer onsemi
Write Cycle Time - Word, Page -
Voltage - Supply 1.8V ~ 5.5V
Technology EEPROM
Supplier Device Package 8-SOIC
Series -
Package / Case 8-SOIC (0.154", 3.90mm Width)
Package Bulk
Operating Temperature 0°C ~ 70°C (TA)
Product Attribute Attribute Value
Mounting Type Surface Mount
Memory Type Non-Volatile
Memory Size 1Kbit
Memory Organization 128 x 8, 64 x 16
Memory Interface Microwire
Memory Format EEPROM
Clock Frequency 2 MHz
Base Product Number CAT93C46

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status Vendor Undefined
ECCN EAR99
HTSUS 8542.32.0051

Parts Introduction

CAT93C46V-TE13 Image
CAT93C46V-TE13 (1)

Manufacturer Part Number

CAT93C46V-TE13

Manufacturer

onsemi

Introduction

The CAT93C46V-TE13 is a 1Kbit non-volatile EEPROM memory device from onsemi. It features a Microwire interface, 64 x 16 or 128 x 8 memory organization, and a wide operating voltage range of 2.5V to 6V. This EEPROM is suitable for various applications that require small, reliable, and electrically erasable and programmable memory.

Product Features and Performance

1Kbit non-volatile EEPROM memory

Microwire interface

Memory organization: 64 x 16 or 128 x 8

Operating voltage range: 2.5V to 6V

Access time: 250ns

Clock frequency: 2MHz

Operating temperature range: 0°C to 70°C

Product Advantages

Small footprint in 8-SOIC package

Wide operating voltage range for flexibility

Reliable and electrically erasable/programmable memory

Suitable for various applications that require non-volatile storage

Key Reasons to Choose This Product

Proven reliability and performance from a trusted manufacturer

Small form factor and wide voltage range make it versatile

Ideal for applications requiring non-volatile memory storage

Quality and Safety Features

Rigorous quality control and testing

Compliance with industry standards and regulations

Compatibility

Suitable for a variety of embedded systems and applications that require non-volatile memory

Application Areas

Industrial and commercial equipment

Automotive electronics

Home appliances

Security and access control systems

Metering and monitoring devices

Product Lifecycle

This product is now obsolete and nearing discontinuation. Customers are advised to contact our website's sales team for information on equivalent or alternative models that may be available.

Frequently Asked Questions(FAQ)

What are the key electrical specifications and operating conditions for the CAT93C46V-TE13 EEPROM, and how do they influence system-level power budgeting and noise margin considerations?
The CAT93C46V-TE13 operates across a supply voltage range of 2.5V to 6V, which enables compatibility with both low-voltage logic systems and legacy 5V platforms without additional voltage regulation. At full operational frequency (2 MHz), the device consumes typical active current in the hundreds of microamps, while standby current remains below 1 µA, making it suitable for battery-powered applications where leakage control is critical. The 250 ns access time supports deterministic read cycles but does not allow direct substitution in high-speed memory-mapped interfaces requiring sub-100 ns latency. Designers must ensure that pull-up resistors on the Microwire interface do not exceed values that would degrade signal rise times beyond acceptable limits under 2 MHz operation.
How does the CAT93C46V-TE13 compare to modern SPI-based EEPROM alternatives in terms of pin count, protocol overhead, and suitability for space-constrained PCB layouts?
Unlike SPI devices that require four dedicated lines (SCLK, MOSI, MISO, CS), the CAT93C46V-TE13 uses only three wires (SI, SO, SCK) via its Microwire interface, reducing routing complexity and component count. This can save up to one GPIO pin compared to SPI implementations, which is valuable in microcontrollers with limited I/O availability. However, Microwire lacks native multidrop support and has stricter timing constraints due to synchronous data transfer on both clock edges. In compact designs—such as wearable sensors or IoT edge nodes—the reduced pin count may outweigh the benefits of SPI’s higher throughput and wider ecosystem support.
What are the implications of the CAT93C46V-TE13’s limited temperature range (0°C to 70°C) for industrial or automotive applications, and what mitigation strategies exist during system design?
The CAT93C46V-TE13 is rated only for commercial-grade temperatures (0°C to 70°C), excluding extended (-40°C to +85°C) or industrial (-40°C to +105°C) environments commonly required in factory automation, outdoor sensing, or vehicle ECUs. Using this part in such contexts risks data corruption or functional failure due to degraded EEPROM retention at elevated temperatures or latch-up at cold extremes. To mitigate, designers should isolate non-critical configuration storage from mission-critical firmware, implement redundant storage with error detection, or select alternative parts like the CAT25xxx series with broader temperature ratings—provided they maintain similar voltage and footprint compatibility.
Can the CAT93C46V-TE13 be safely used as a replacement for SRAM in cache-like applications, given its non-volatility, and what trade-offs emerge in write endurance and access patterns?
While the CAT93C46V-TE13 offers persistent storage unlike volatile SRAM, it cannot serve as a true drop-in replacement due to fundamental performance differences. With a typical write endurance of 1 million cycles and page-write latencies exceeding 5 ms, frequent writes will quickly wear out the memory, whereas SRAM supports millions of cycles per second. Additionally, random-access performance degrades significantly after initial reads due to internal refresh cycles. Thus, it is unsuitable for high-frequency caching but may suffice for infrequent logging or configuration saves where persistence outweighs speed.
How does the CAT93C46V-TE13 handle power-loss protection during write operations, and what external circuitry is recommended to prevent data loss?
The CAT93C46V-TE13 lacks hardware-based power-fail detection or built-in supercapacitors; therefore, it offers no guaranteed data integrity during brownout events. Without an external capacitor or supervisor IC monitoring VCC, a sudden power dip during a write cycle could corrupt stored data. To safeguard, designers should include a small bulk capacitor (e.g., 10–47 µF) near the VCC pin and optionally integrate a reset supervisor that holds the microcontroller in reset until stable power is confirmed before initiating EEPROM transactions.
What are the legal and regulatory status concerns associated with the CAT93C46V-TE13, particularly regarding RoHS compliance and export controls?
The CAT93C46V-TE13 is marked as RoHS non-compliant, meaning it contains restricted substances such as lead in its packaging or internal structure, which may disqualify it from use in EU-market consumer electronics unless exemptions apply. Additionally, while classified under EAR99 (no strict export restrictions), end-use verification is still advisable for defense or aerospace projects. For regulated markets, sourcing a RoHS-compliant variant like the CAT25C010 or newer onsemi EEPROM families is strongly advised to avoid supply chain disruptions and certification failures.
Given its 8-SOIC package and 3.9 mm width, what layout considerations should be made when placing the CAT93C46V-TE13 alongside high-speed digital traces or RF components?
The 8-SOIC footprint occupies minimal board area but shares ground planes and adjacent signal paths easily due to its narrow profile. To minimize crosstalk and electromagnetic interference, keep Microwire traces away from high-frequency signals (>1 MHz) and route them perpendicular to sensitive analog lines. Place decoupling capacitors (0.1 µF ceramic) as close as possible to the VCC and GND pins. Avoid daisy-chaining multiple EEPROMs on the same bus without proper termination, as reflections at 2 MHz can distort timing margins.
Is the CAT93C46V-TE13 suitable for firmware bootloader storage in embedded systems, and what factors determine its reliability in that role?
The CAT93C46V-TE13’s slow write speed and limited endurance make it ill-suited for storing firmware images intended for repeated updates. Instead, it may be used sparingly for storing calibration constants, serial numbers, or OTP-like configuration flags—data that changes infrequently. If firmware storage is needed, consider pairing it with flash memory or using the EEPROM solely for non-executable metadata. Reliability depends heavily on limiting write cycles and ensuring stable operating conditions within the specified 0°C to 70°C window.
How does the memory organization of the CAT93C46V-TE13 (128 x 8 or 64 x 16) affect software addressing logic, and what alignment issues should developers anticipate?
The two organizational modes allow flexibility depending on host architecture: 128 x 8 suits 8-bit microcontrollers with byte-wide access, while 64 x 16 aligns better with 16-bit buses. However, the device internally manages pages of 8 bytes, so unaligned multi-byte writes may span page boundaries, triggering longer write sequences. Software must ensure data structures are padded appropriately or use atomic page writes to avoid partial updates. Misalignment can also increase effective write latency by up to eightfold if each byte requires independent programming.

Parts with Similar Specifications

The three parts on the right have similar specifications to Catalyst Semiconductor Inc. CAT93C46V-TE13

Product Attribute CAT93C46VI-TE13 CAT93C46VI-GT3 CAT93C46VI-T3 CAT93C46VI-26493
Part Number CAT93C46VI-TE13 CAT93C46VI-GT3 CAT93C46VI-T3 CAT93C46VI-26493
Manufacturer Catalyst Semiconductor Inc. onsemi onsemi Catalyst Semiconductor Inc.
Series - - - -
Memory Size - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Technology - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Clock Frequency - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount
Memory Type - - - -
Write Cycle Time - Word, Page - - - -
Memory Format - - - -
Memory Organization - - - -
Memory Interface - - - -
Voltage - Supply - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
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We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
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  • IPC
  • ESD
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CAT93C46V-TE13 Image

CAT93C46V-TE13

Catalyst Semiconductor Inc.
32D-CAT93C46V-TE13

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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