D8257-5
DMA Controller, 4 Channel(s), 3.125MHz, CMOS, CDIP40Manufacturer: Intel
Categories: DMA Controllers
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Intel D8257-5 is a 4-channel Direct Memory Access (DMA) controller operating at a maximum clock frequency of 3.125MHz. This CMOS device, housed in a 40-pin CDIP package, supports an 8-bit address bus and an 8-bit external data bus, with MCS-85 bus compatibility. It features selectable 8-bit or 16-bit transfers. The D8257 series controller is designed for efficient data transfer operations, reducing CPU load in embedded systems. Its typical applications include data acquisition, industrial control, and legacy system designs requiring high-speed data movement between peripherals and memory. The operating temperature range is 0°C to 70°C, with a supply voltage of 4.5V to 5.5V.
Additional Information
Series: D8257RoHS Status: Manufacturer Lead Time: Product Status: DiscontinuedPackaging: Datasheet:Download Free CAD Model:
Technical Details:
| Length | 52.3250 |
| Width | 15.2400 |
| Technology | CMOS |
| Address_Bus_Width | 8 |
| Bus_Compatibility | MCS-85 |
| Clock_Frequency_Max | 3.1250000000000000 |
| External_Data_Bus_Width | 8 |
| JESD_30_Code | R-GDIP-T40 |
| Number_of_DMA_Channels | 4 |
| Number_of_Terminals | 40 |
| Operating_Temperature_Max | 70.0000 |
| Operating_Temperature_Min | 0.0000 |
| Package_Body_Material | CERAMIC, GLASS-SEALED |
| Package_Code | DIP |
| Package_Equivalence_Code | DIP40,.6 |
| Package_Shape | Rectangular |
| Package_Style | IN-LINE |
| Seated_Height_Max | 5.7200 |
| Supply_Voltage_Max | 5.5000 |
| Supply_Voltage_Min | 4.5000 |
| Supply_Voltage_Nom | 5.0000 |
| Surface_Mount | No |
| Terminal_Form | THROUGH-HOLE |
| Terminal_Pitch | 2.540 |
| Terminal_Position | Dual |
| uPs_uCs_Peripheral_ICs_Type | DMA CONTROLLER |
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