Product Overview
This memory module stores application programs and configuration data for Reliance Electric control systems. Industrial processes require reliable data retention to maintain consistent production parameters. The 45C610 provides non-volatile storage with fast read and write access times. Its compact design plugs directly into the controller motherboard without external cabling. Maintenance teams can replace this module during scheduled shutdowns with minimal effort. The unit’s solid-state construction eliminates moving parts for enhanced long-term reliability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Memory Type | CMOS SRAM with battery backup |
| Storage Capacity | 512 KB (expandable to 2 MB with piggyback) |
| Access Time | ≤120 ns (read/write cycle) |
| Data Retention | Battery-backed (5 years typical) |
| Backup Battery | 3.6V lithium (replaceable) |
| Battery Life | 5+ years (continuous operation) |
| Write Protection | Hardware jumper (enable/disable) |
| Data Bus Width | 16-bit |
| Operating Voltage | 5 VDC ±5% |
| Standby Current | ≤50 µA (battery backup mode) |
| Active Current | ≤150 mA (during read/write) |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | –40°C to +85°C |
| Dimensions (W x H x D) | 35 mm x 90 mm x 115 mm |
| Weight | 0.15 kg |
| Connector Type | 64-pin edge connector (gold-plated) |
| Mounting Type | Vertical socket on motherboard |
| Memory Mapping | Bank-switchable (4 banks of 128 KB) |
| Data Integrity | CRC-16 checking |
Memory Architecture and Performance
The 45C610 uses high-speed CMOS SRAM with access times under 120 nanoseconds. This fast response supports real-time program execution without wait states. The module organizes memory into four banks of 128 kilobytes each. Bank-switching logic enables access to the full 512-kilobyte capacity. A hardware write-protect jumper prevents accidental program alterations during normal operation.
Data Retention and Battery Backup
A replaceable 3.6-volt lithium cell maintains memory contents during power-off conditions. This battery sustains data integrity for five years or more in typical environments. The module automatically switches to battery power when the system supply drops below 4.5 volts. Low standby current consumption extends battery service life significantly. A front-panel test point allows voltage verification without removing the module.
Installation and System Integration
The 64-pin gold-plated edge connector fits standard controller motherboard sockets. The module seats vertically to minimize motherboard space requirements. Its 35-millimeter width allows adjacent modules without crowding. Weighing just 150 grams, the unit imposes minimal mechanical stress on connectors. Keyed connectors prevent reverse installation during field replacements.
Data Protection and Integrity
CRC-16 error checking validates stored data during read operations. The module signals the processor if it detects any corruption of stored information. Hardware write protection blocks unintended modifications during debugging sessions. Battery status monitoring alerts the system before the lithium cell depletes. The module retains data through the battery replacement procedure if the system remains powered.
Environmental Tolerance and Construction
The glass-epoxy PCB withstands humidity and thermal cycling without degradation. Gold-plated contacts resist corrosion for reliable electrical connections. The module operates reliably in temperatures from 0°C to 55°C. Conformal coating on the PCB provides additional protection against dust and moisture. The unit’s solid-state design ensures consistent performance for decades of service.
Details
| Weight | 0.15 kg |
|---|---|
| Dimensions | 35 × 90 × 115 mm |
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