NVRAM - miinuslaskuri

In high-volume printing environments, service technicians rely on the RICOH B0649099 NVRAM Minus Counter Module to accurately track and reset page counts during maintenance. This non-volatile SRAM component ensures that counter data persists even after power loss, making it essential for billing and service intervals in multifunction printers and production systems.

Key specifications

• Memory type: Non-Volatile SRAM (NVSRAM) with 1KB general-purpose SRAM
• Counter type: Up/Down counter, 32-bit resolution
• Interface: I2C (I²C), Fast-mode up to 400 kHz
• Supply voltage: 3.3V (range 2.97V to 3.63V)
• Data retention: 10+ years via internal lithium energy source
• Operating temperature: -40°C to +85°C
• Package: 20-pin SOIC, CMOS logic levels
• ESD protection: ±2000V HBM

Why choose it

This module delivers dependable counter storage with automatic store/recall and power-fail write protection. Its low-power operation and unlimited SRAM write cycles ensure long service life, while the 100,000-cycle non-volatile store capability provides robust data integrity for utility metering, gaming machines, industrial control, security systems, and POS terminals.

Ideal use cases

• Replacement part for Ricoh multifunction printers and production systems
• Tracking maintenance intervals and page counts in high-volume environments
• Embedded systems requiring non-volatile counter storage
• Industrial control and security applications with I2C interface

Good to know

The module is supplied as a single unit and is compatible with Ricoh devices requiring the B0649099 part number. It is not a user-installable component; professional installation by a qualified technician is recommended. The product does not contain hazardous substances and is compliant with WEEE regulations.