NXP Semiconductors PCF85103C-2T/00,11

Overview

PCF85103C-2T/00 from NXP Semiconductors (formerly Philips) is a 256 × 8-bit (2 kbit) I²C-bus EEPROM with on-chip voltage multiplier, fault-tolerant redundant storage code, and operation down to 2.5 V supply. It supports byte and 8-byte page write modes, delivers ≤2.0 mA operating current at 6.0 V, and provides 10-year data retention at 55 °C. It is used in embedded system configuration storage where reliable non-volatile memory with minimal external components is required.

For engineers reviewing the PCF85103C-2T/00 datasheet, PCF85103C-2T/00 pinout, PCF85103C-2T/00 application, or PCF85103C-2T/00 equivalent, key selection considerations include I²C address flexibility via A0–A2 pins, 100 kHz bus compatibility, SO8 package footprint, low standby current (≤10 µA), and 1 million write cycles at 22 °C.

Technical Context

The PCF85103C-2T/00 implements a serial I²C interface with fixed 7-bit device address prefix 0b0100 (0x40–0x47) determined by hardware-selectable A0–A2 pins. It uses an internal oscillator for write timing and requires no external programming voltage - the on-chip voltage multiplier generates the high-voltage charge pump needed for EEPROM cell programming.

Its architecture includes an 8-byte page latch, auto-incrementing word address counter, and internal power-on reset circuitry. The device supports three read modes (current address, random, sequential) and two write modes (byte and page), with all I²C timing compliant to standard-mode (100 kHz max) specifications per JEDEC and Philips documentation.

Key Specifications

Pinout & Package

PCF85103C-2T/00 is supplied in an SO8 (SOT96-1) plastic small outline package, 8-lead, 3.9 mm body width, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C02C-SSHM-T and STK12C68-55I-MF1, the PCF85103C-2T/00 offers unique fault-tolerant storage and strict I²C standard-mode compliance at the cost of lower maximum clock rate and absence of fast-mode capability - making it optimal for reliability-first, cost-sensitive industrial designs.

Availability

PCF85103C-2T/00 is available at Aetrix Electronics and suitable for industrial sensor calibration storage, consumer device configuration memory, and automotive body control module settings requiring stable component supply and long-lifecycle support.

Supply support for PCF85103C-2T/00 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, is a global leader in high-performance mixed-signal ICs, with expertise in secure connectivity, automotive, and industrial control solutions.

The PCF85103C-2T/00 belongs to NXP's legacy I²C EEPROM product line, designed specifically for cost-effective, low-power non-volatile storage in resource-constrained embedded systems where reliability and simplicity outweigh raw speed.

FAQ

What is the I²C slave address range supported by the PCF85103C-2T/00?

The PCF85103C-2T/00 uses a fixed 4-bit device code (0b0100) with three hardware-selectable address bits (A0–A2), yielding eight possible slave addresses: 0x40 through 0x47. Each address corresponds to a unique combination of A0, A1, and A2 tied to VDD or VSS. This allows up to eight PCF85103C-2T/00 devices on a single I²C bus without address collision - a feature confirmed in Section 7 and Figure 3 of the official datasheet.

Does the PCF85103C-2T/00 require an external high-voltage programming supply?

No, the PCF85103C-2T/00 does not require an external high-voltage programming supply. It integrates an on-chip voltage multiplier that generates the necessary programming voltage internally from the main VDD supply (2.5–6.0 V). This eliminates external charge-pump components and simplifies system design - a key feature explicitly stated in Section 1 (Description) and Section 2 (Features) of the datasheet.

What is the maximum write endurance and data retention specification for the PCF85103C-2T/00?

The PCF85103C-2T/00 guarantees 1,000,000 erase/write cycles at 22 °C (Table 9) and 10 years of data retention at 55 °C (Table 7). These values are measured and specified under defined test conditions - not extrapolated. Endurance drops to 100,000 cycles over the full operating range (−40 °C to +85 °C), and retention is rated at 10 years minimum under continuous 55 °C ambient stress.

Is the PCF85103C-2T/00 pin-compatible with other EEPROMs in the same family?

Yes, the PCF85103C-2T/00 is pin-compatible with PCF8570, PCF8571, PCF8572, PCA8581, PCF8582, and PCF85102, as confirmed in Section 2 (Features) of the datasheet. All share identical SO8 and DIP8 pinouts, I²C interface behavior, and functional register mapping - enabling board-level substitution where address and timing requirements align.

What are the operating temperature limits and package type for the PCF85103C-2T/00?

The PCF85103C-2T/00 operates from −40 °C to +85 °C ambient temperature (Table 6) and is packaged in an SO8 (SOT96-1) plastic small outline package with 3.9 mm body width. This surface-mount package is reflow-solder compatible and documented in Figure 11 and Table 2 of the datasheet - distinct from the DIP8 variant (PCF85103C-2P/00).