| General |
The RAMCHECK (p/n INN-8668) test system automatically tests 168-pin SDRAM PC166/150/133/100/66 or EDO/FPM DIMM modules on the same test socket. RAMCHECK supports all popular Registered, Unbuffered, ECC and non-ECC Parity DIMMs. A variety of other memory devices are supported with Optional Test Adapters |
| Internal Construction (RAMCHECK) |
Three Printed Circuit Boards connected with a 96-pin snap-on connector |
| Chip technology |
Advanced CMOS and FCT devices |
| Processors |
Main Processor: TX486DLC/E-40GA running at 40MHz Max.
SDRAM Test Engine: ALTERA CPLD running at 184MHz (200MHz Max) |
| Internal SRAM |
64KB (Expandable to 256KB) |
| Internal SDRAM |
4MB |
| Internal Program FLASH EPROM |
512KB (Expandable to 1MB). Internal program can be upgraded via the Internet |
| PC Interface |
Built-in Serial Interface (9-pin connection cable is included) running at 38,400 baud rate. RAMCHECK is a stand-alone tester. PC Communications software is included to provide printed reports, data logging, and firmware upgrades via the Internet |
| Display |
Seiko Instruments 128 x 32 pixel LCD (Reflective) with LED backlighting and 6 o'clock view direction (internal contrast control located on bottom PCB) |
| TEST Socket |
Yamaichi test quality 168-pin socket, with rugged latches for easy insertion and removal of the modules |
| DUT (Device Under Test) interface |
16 multiplex DRAM/MODULE address lines for up to 4G addresses of direct processor access
Main Control lines: 4 -RAS/-S lines, 8 -CAS/DQM lines, 2 -W/WE lines, 2 -OE lines, 2 CKE and 4 Clock lines.
Complex wave generation and digital delay synthesis on all -RAS/-S, -CAS/DQM and -W lines.
Advanced setup of Trcd and Trah setup at 1-2 nS resolution.
Three Programmable Regulated Voltage Sources 1.25V-5.7V with automatic current limiters.
EDO/FPM DRAM Access Time: Direct measurement from 150nS down to 30nS at 0.5nS resolution, +/-2nS accuracy.
SDRAM Clock Access Time: Direct measurement from 150MHz to 66MHz with 0.5nS resolution, +/-1.0nS accuracy.
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| TEST ALGORITHM (Refer to Application Note INN-8558-APN16) |
Checker Patterns
Walking 0, 1
Voltage Cycling and Voltage Bounce
March Up/Down
Self-Refresh (for SDRAM)
Auto-Loop with changing patterns |
| AC LINE ADAPTER |
Universal Power Supply, UL/CSA listed 100-250VAC/47-63Hz to 7.0VDC @ 4.4 AMP adapter. |
| Carrying Case |
included |
| The unit comes with a 45-page short form Printed Manual. An expanded manual is available on-line in a pdf format. |
| Dimensions |
9.5" x 6.5" x 3" (W x L x H). |
| RAMCHECK DDR ONLY |
| The RAMCHECK DDR ONLY (p/n INN8668DDR-ONLY) is a modified RAMCHECK base system with the DDR 184-pin adapter (p/n INN-8668-6). It does not include the 168-pin test socket and the support for regular SDRAM and EDO/FPM devices, only DDR support. |
| Net Weight |
RAMCHECK: 3.5 lbs
RAMCHECK DDR Only: 3.5 lbs |
| Shipping Weight |
RAMCHECK: 10 lbs
RAMCHECK DDR Only: 9 lbs |
| Product operation and specifications are subject to change without prior notice. |
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