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*The following are the basic parameters of the product, involving the characteristics of the product and its category
| TYPE | DESCRIPTION | 
|---|---|
| RoHS Status | ROHS3 Compliant | 
| Number of Ports | 2 | 
| Mounting Type | Surface Mount | 
| Mount | Surface Mount | 
| Number of Functions | 1 | 
| ECCN Code | EAR99 | 
| JESD-609 Code | e3 | 
| Part Status | Obsolete | 
| Memory Width | 8 | 
| Supply Voltage | 5V | 
| Operating Supply Voltage | 5V | 
| Power Supplies | 5V | 
| Packaging | Tube | 
| Qualification Status | Not Qualified | 
| Peak Reflow Temperature (Cel) | 260 | 
| Time@Peak Reflow Temperature-Max (s) | 20 | 
| Reach Compliance Code | unknown | 
| Terminal Finish | Matte Tin (Sn) | 
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
| Operating Temperature | -40°C~85°C TA | 
| Terminal Position | QUAD | 
| Height Seated (Max) | 5.08mm | 
| Memory Interface | Parallel | 
| Voltage – Supply | 4.5V~5.5V | 
| Output Characteristics | 3-STATE | 
| Memory Type | Volatile | 
| Word Size | 8b | 
| Number of Terminations | 68 | 
| Number of Pins | 68 | 
| Pin Count | 68 | 
| Max Frequency | 1MHz | 
| Memory Format | SRAM | 
| I/O Type | COMMON | 
| Sync/Async | Asynchronous | 
| Published | 1996 | 
| Standby Current-Max | 0.03A | 
| Write Cycle Time – Word, Page | 25ns | 
| Technology | SRAM – Dual Port, Asynchronous | 
| Nominal Supply Current | 190mA | 
| Package / Case | 68-LCC (J-Lead) | 
| Address Bus Width | 24b | 
| Memory Size | 32Kb 4K x 8 | 
| Density | 32 kb | 
| Additional Feature | AUTOMATIC POWER-DOWN | 
| Organization | 4KX8 | 
| Base Part Number | CY7C138 | 
*The following components have specifications similar
*The following five components have specifications similar