MM-6702C

256MB Non-Volatile Solid State FLASH PMC
Features
Capacity: 512K, 1M, 2M, 4M, 6M, 8M
Cycle Time/Access Time 125 nsec
Transfer Rate Guaranteed 30+ MB transfer rate for read and write cycles without refresh delays
Block transfers (BLT) for sequential access Module selection on 64KB boundaries, switch-selectable
Two independent memory blocks allow mixing of RAM and EPROM of the same memory size
Battery backup Two on-board, redundant, fused batteries with battery charger, LED battery indicators and CSR for status reporting
Data retention 3 years with lithium batteries; 4 weeks with rechargeable NiCad batteries
VMEbus-compatible per Rev C.1 A32/A24, D32/D16/D8 (UAT)
Description

MM-6702C Product Specification Sheet (PDF file format)

The MM-6702C is a high-speed, high-density, static CMOS non- volatile memory module occupying a single card slot. It uses 128KB low power CMOS memory devices or 512KB DIP modules, providing great flexibility to mix CMOS static RAM with EPROMs.

The MM-6702C is completely compatible with VMEbus specification Rev. C1 with block transfer (BLT) or 256 bytes each burst and unaligned data transfers (UAT). A write-protect switch disables write operation for selected portions of the RAM that serve as read-only memory.

On-board lithium or NiCad batteries provide data retention in case of a power loss. On-board LEDs and a control status register (CSR) indicate battery status.

Reliability is ensured by burn-in and running memory diagnostics that check operation for 48 hours while temperature-cycling boards between 0 and 60°C.

MM-6702C Specifications
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Capacity : 512K, 1M, 2M, 4M, 6M, 8M
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Cycle/Access Time : 125 nsec, with 30MB guaranteed transfer rate
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Address : 32 bits + 6 bits of address modifiers
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Data In/Data Out : 8, 16, 24, 32 Bits (UAT)
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Modes of Operation : Read, write, read-modify-write, write protect
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Module Selection : 64KB switch-selectable by setting upper and lower limits
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On-Board Batteries : Two redundant, high-temperature, fused batteries; each battery has its own charger and voltage detector and LED indicator
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Battery Types / Ratings : NiCad (Rechargeable) 100 mA/hr each, 3.6V; Data Retention: 4 Weeks, Lithium (Non-Rechargeable) 1500 mA/hr each, 3.6V; Data Retention: 3 Years
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Operating Temperature : 0 to +60°C
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Storage Temperature : -40 to +80°C
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Relative Humidity : 95% relative humidity
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Power Requirements : +5V @ 1.7A