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Home > Products > Integrated Circuits (ICs) > Memory > Memory

NXP Semiconductors PCF85102C-2T/03,11

Name: PCF85102C-2T/03,11
Brand: NXP Semiconductors
SKU: PCF85102C-2T/03,11
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PCF85102C-2T/03,11

Manufacturer:: NXP Semiconductors

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: PCF85102C-2T/03,11.pdf

Description:: IC EEPROM 2KBIT I2C 100KHZ 8SO

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Product details

Overview

PCF85102C-2T/03 from NXP Semiconductors (formerly Philips) is a 256 × 8-bit (2 kbit) I²C-bus EEPROM with on-chip voltage multiplier, fault-tolerant redundant storage, and operation down to 2.5 V. It supports byte and 8-byte page writes, offers 1,000,000 write cycles at 22 °C, and delivers 10-year data retention at 55 °C. It is used in industrial control modules for parameter storage and calibration data backup.

For engineers reviewing the PCF85102C-2T/03 datasheet, PCF85102C-2T/03 pinout, PCF85102C-2T/03 application, or PCF85102C-2T/03 equivalent, key selection criteria include I²C standard-mode (100 kHz) compatibility, SO8 package footprint, hardware address select pins (A0–A2), low standby current (≤10 µA at 6 V), and fault-tolerant single-bit error correction.

Technical Context

The PCF85102C-2T/03 implements an I²C slave interface with fixed device code 1010b and user-configurable A2/A1/A0 bits, enabling up to eight devices on one bus. Its internal sequencer manages auto-incrementing word addresses during sequential reads and page writes, while the on-chip timer eliminates external timing components for write cycles.

It uses floating-gate CMOS technology with internal voltage multiplication for programming, eliminating need for external VPP. The redundant storage architecture detects and masks single-bit errors, enhancing reliability beyond conventional EEPROMs without requiring host-level ECC logic.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory size	256 × 8-bit (2 kbit) non-volatile EEPROM storage
I²C clock frequency	0–100 kHz - compatible only with standard-mode I²C, not fast-mode
Supply voltage range	2.5 V to 6.0 V - enables direct interface with 3.3 V and 5 V systems
Write endurance	1,000,000 erase/write cycles at 22 °C - supports long-life field deployments
Data retention	10 years at 55 °C - validated for industrial temperature operation
Standby current	≤10 µA at 6.0 V - minimizes power draw in battery-backed or energy-sensitive applications
Page write capacity	8-byte page write mode - reduces total programming time vs. individual byte writes

Pinout & Package

PCF85102C-2T/03 is supplied in an SO8 (SOT96-1) plastic small outline package, 8-lead, 3.9 mm body width, surface-mount compatible.

Pin/Terminal	Circuit Role	Design Meaning
A0	Hardware address input 0	Selects LSB of 3-bit chip address; ties to VDD/GND to configure one of eight I²C addresses
A1	Hardware address input 1	Selects middle bit of 3-bit chip address; enables multi-device I²C bus topology
A2	Hardware address input 2	Selects MSB of 3-bit chip address; determines unique slave address on shared bus
VSS	Negative supply	Ground reference for all internal circuitry and I/O buffers
SDA	Serial data I/O	Open-drain bidirectional I²C data line; requires external pull-up resistor
SCL	Serial clock input	Input-only I²C clock line; synchronizes all data transfers
N.C.	No connect	Internally unconnected pin; must remain floating or tied to VSS per layout guidelines
VDD	Positive supply	Single power rail (2.5–6.0 V); powers EEPROM core and I²C interface

Key Features

Feature	Design Value
Fault-tolerant redundant storage	Detects and masks single-bit errors without host intervention, increasing effective reliability over standard EEPROMs
On-chip voltage multiplier	Generates internal programming voltage - no external VPP supply or charge pump required
Internal power-on reset	Ensures predictable initialization state after power-up, eliminating need for external POR circuitry
8-byte page write mode	Reduces average write time per byte by ~87% compared to sequential byte writes
ESD protection	≥2000 V HBM, ≥150 V MM, ≥1000 V CDM - meets industrial handling robustness requirements

Applications

Industrial Sensor Calibration Storage	Consumer Appliance Configuration Memory
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and linearization tables in programmable logic controllers. IC Role / Device Role / Timing Role: Non-volatile parameter storage accessed via I²C during system boot and runtime reconfiguration. Use Value: Enables field-replaceable sensors without recalibration; leverages 10-year data retention and 1M-cycle endurance for maintenance-free operation.	Use Scenario: Retaining user preferences (e.g., cooking modes, temperature presets) across power cycles in smart ovens and washing machines. IC Role / Device Role / Timing Role: I²C slave EEPROM providing persistent configuration storage independent of main MCU flash. Use Value: Supports frequent updates (e.g., daily usage logs) without wearing out MCU flash; low 2.5 V operation ensures compatibility with brown-out conditions.
Medical Device Setup Parameters	Automotive Body Control Module Settings
Use Scenario: Saving clinical setup parameters (alarm thresholds, default dosing profiles) in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Fault-tolerant memory storing safety-critical configuration data with single-bit error masking. Use Value: Redundant storage architecture satisfies IEC 62304 Class B software safety requirements without host-level ECC overhead.	Use Scenario: Storing vehicle-specific settings (door lock behavior, mirror position memory, lighting profiles) in BCMs. IC Role / Device Role / Timing Role: I²C EEPROM interfaced to microcontroller for infrequent but critical non-volatile storage. Use Value: 2.5–6.0 V operation covers automotive battery range (cold crank to load dump); 85 °C ambient rating supports under-hood placement.

Industrial Sensor Calibration Storage

Consumer Appliance Configuration Memory

Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and linearization tables in programmable logic controllers.

IC Role / Device Role / Timing Role: Non-volatile parameter storage accessed via I²C during system boot and runtime reconfiguration.

Use Value: Enables field-replaceable sensors without recalibration; leverages 10-year data retention and 1M-cycle endurance for maintenance-free operation.

Use Scenario: Retaining user preferences (e.g., cooking modes, temperature presets) across power cycles in smart ovens and washing machines.

IC Role / Device Role / Timing Role: I²C slave EEPROM providing persistent configuration storage independent of main MCU flash.

Use Value: Supports frequent updates (e.g., daily usage logs) without wearing out MCU flash; low 2.5 V operation ensures compatibility with brown-out conditions.

Medical Device Setup Parameters

Automotive Body Control Module Settings

Use Scenario: Saving clinical setup parameters (alarm thresholds, default dosing profiles) in portable infusion pumps and diagnostic monitors.

IC Role / Device Role / Timing Role: Fault-tolerant memory storing safety-critical configuration data with single-bit error masking.

Use Value: Redundant storage architecture satisfies IEC 62304 Class B software safety requirements without host-level ECC overhead.

Use Scenario: Storing vehicle-specific settings (door lock behavior, mirror position memory, lighting profiles) in BCMs.

IC Role / Device Role / Timing Role: I²C EEPROM interfaced to microcontroller for infrequent but critical non-volatile storage.

Use Value: 2.5–6.0 V operation covers automotive battery range (cold crank to load dump); 85 °C ambient rating supports under-hood placement.

Equivalent & Alternatives

The following parts are listed as comparable options for similar EEPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AT24C02C-SSHM-T	2 kbit I²C EEPROM; identical 256 × 8 organization, but uses different address scheme (A0–A1 only) and lacks redundant storage	No single-bit error masking; lower reliability in high-radiation or long-life applications	Preferred where cost is primary and fault tolerance is not required
M95020-WMN6TP	2 kbit SPI EEPROM; serial interface differs (SPI vs. I²C), no hardware address pins, higher max clock (20 MHz)	Requires SPI master interface and separate chip-select routing; incompatible bus topology	Selected when existing design uses SPI peripherals and board space allows dedicated CS line

Compared with AT24C02C-SSHM-T and M95020-WMN6TP, the PCF85102C-2T/03 uniquely combines I²C compatibility, 3-pin hardware addressing for multi-drop buses, and built-in fault-tolerant storage-making it optimal for industrial systems demanding both bus scalability and data integrity assurance.

Availability

PCF85102C-2T/03 is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, and automotive body electronics requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for PCF85102C-2T/03 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors, formerly Philips Semiconductors, designs high-reliability analog and mixed-signal ICs for industrial, automotive, and consumer applications.

The PCF85102C-2T/03 belongs to NXP's legacy I²C EEPROM family, engineered for robust non-volatile storage in resource-constrained embedded systems with emphasis on fault tolerance and wide supply voltage operation.

FAQ

What is the maximum I²C clock frequency supported by the PCF85102C-2T/03?

The PCF85102C-2T/03 supports I²C standard-mode operation only, with a maximum clock frequency of 100 kHz. It does not support fast-mode (400 kHz) or high-speed mode. This limitation is explicitly stated in Section 8.1.2 of the datasheet and confirmed in Table 11 (I²C-bus characteristics), where fSCL is specified as 0–100 kHz. Designers must ensure master timing complies with this constraint.

Does the PCF85102C-2T/03 require an external VPP voltage for programming?

No, the PCF85102C-2T/03 does not require an external VPP voltage. It integrates an on-chip voltage multiplier that generates the necessary programming voltage internally. This is confirmed in Section 1 (Description) and Section 2 (Features), which state "programming voltage is generated on-chip, using a voltage multiplier." External VPP connections are neither required nor supported.

How many PCF85102C-2T/03 devices can share the same I²C bus?

Up to eight PCF85102C-2T/03 devices can be connected to a single I²C bus. This is enabled by three hardware address inputs (A0, A1, A2), each configurable as logic 0 or 1, yielding 2³ = 8 unique slave addresses. Section 1 and Figure 3 in the datasheet explicitly confirm this capability and list all eight address combinations.

What is the meaning of "N.C." on Pin 7 of the PCF85102C-2T/03?

"N.C." stands for "No Connect" - Pin 7 is internally unconnected and must not be bonded or electrically tied to any signal. Per Table 4 (Pin description) and Figure 2 (Pin configuration), it is a dummy pin with no functional role. Layout best practice is to leave it floating or tie it to VSS; connecting it to VDD or active signals may cause undefined behavior.

Is the PCF85102C-2T/03 pin-compatible with the PCF85103 series?

The PCF85102C-2T/03 is pin-compatible with the PCF85103 series per Section 2 of the datasheet, which states "Pin compatible (with a different address) to PCF85103." However, the two families differ in memory size (PCF85103 is 1 kbit), device addressing (PCF85103 uses only A0/A1), and internal timing - so PCB layout reuse is possible, but firmware and address mapping must be updated.

PCF85102C-2T/03,11 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Verified

Memory Type:: Non-Volatile

Memory Format:: EEPROM

Technology:: EEPROM

Memory Size:: 2Kbit

Memory Organization:: 256 x 8

Memory Interface:: I2C

Clock Frequency:: 100 kHz

Write Cycle Time - Word, Page:: -

Access Time:: -

Voltage - Supply:: 2.5V ~ 6.0V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SO

PCF85102C-2T/03,11 FAQ

1.How can I place an order for PCF85102C-2T/03,11 through Aetrix?

Please submit a Request for Quotation (RFQ) for PCF85102C-2T/03,11 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PCF85102C-2T/03,11 reliable?

The price and inventory of PCF85102C-2T/03,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCF85102C-2T/03,11 is usually 5 days.

3.What payment methods are accepted for PCF85102C-2T/03,11?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCF85102C-2T/03,11 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PCF85102C-2T/03,11?

PCF85102C-2T/03,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PCF85102C-2T/03,11 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PCF85102C-2T/03,11?

For technical support, including PCF85102C-2T/03,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCF85102C-2T/03,11 requirements.

6.How does Aetrix verify that PCF85102C-2T/03,11 is sourced from the original manufacturer or authorized distributors?

All PCF85102C-2T/03,11 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PCF85102C-2T/03,11 meets industry standards.

7.What is the process for return or replacement of PCF85102C-2T/03,11?

All PCF85102C-2T/03,11 units undergo pre-shipment inspection (PSI). If there is an issue with PCF85102C-2T/03,11, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PCF85102C-2T/03,11 part is unused and in its original packaging.

Return procedure for PCF85102C-2T/03,11:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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