PRODUCT INFORMATION
Product Overview
The General Electric IC697MEM731 is a CMOS expansion memory module within the Series 90-70 platform. This unit expands available system memory by providing 128 KB of 32-bit storage. It mounts directly onto compatible host controller boards without consuming an additional backplane slot. The module holds both user program logic and working data variables. Battery backup protection utilizes the host CPU battery to preserve stored contents during power interruptions.
Engineered for field installation, the IC697MEM731 operates as a daughterboard on Series 90-70 controller units. It supports CPU models 780, 781, 782, 788, and 789. The hardware executes parity generation and parity checking across every individual byte of SRAM. System error checking remains actively monitored directly by the central processing unit. The module weighs 1.00 lb (0.45 kg) and allows direct memory expansion in existing racks.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Weight | 1.00 lbs (0.45 kg) |
|---|
| Bit Rate | 32 Bits |
|---|
| Memory Capacity | 128 KB |
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| Additional Slot | Not required for installation |
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| Battery Backup | Supported by CPU battery |
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| Configurable Module | Yes |
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| Data Storage | Supported |
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| Program Storage | Supported |
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| Error Checking | Supported by CPU |
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| Field Installation | Supported |
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| Daughterboard Operation | Supported |
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| Compatible CPUs | 780, 781, 782, 788, and 789 CPUs |
|---|
| Parity Generation | Supported for each byte of SRAM |
|---|
| Parity Checking | Supported for each byte of SRAM |
|---|
TECHNICAL INFORMATION
Features
- Provides 128 KB of CMOS static RAM with 32-bit data bus operation.
- Installs directly onto the host processor without requiring an extra chassis slot.
- Supports both user logic program storage and operational data storage.
- Maintains memory retention via the central processing unit backup battery.
- Features byte-level parity generation and checking on all SRAM locations.
- Mounts as a daughterboard module for direct field retrofits.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the daughterboard module onto designated CPU connectors before rack power-up.
- Ensure the host controller battery is connected to prevent data loss upon powering down.
- Installation does not consume an external chassis I/O or option slot.
TECHNICAL INFORMATION
Compatibility
- Compatible with General Electric Series 90-70 CPU models 780, 781, 782, 788, and 789.
- Requires host CPU battery backup to retain SRAM contents during power cycles.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with General Electric Series 90-70 CPU models 780, 781, 782, 788, and 789. Requires host CPU battery backup to retain SRAM contents during power cycles.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the memory capacity of the IC697MEM731?
The module provides 128 KB of 32-bit CMOS static RAM for data and program storage.
Does the IC697MEM731 require a dedicated rack slot?
No, the module installs as a daughterboard directly onto the CPU board without occupying an additional rack slot.
Which Series 90-70 CPUs support the IC697MEM731 module?
The module is compatible with Series 90-70 CPU models 780, 781, 782, 788, and 789.
