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UPD8257-5 |
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| Part Number | UPD8257-5 |
| Manufacturer | NEC |
| Description | NEe Microcomputers, Inc. NEe JLPD8257 JLPD8257·5 PROGRAMMABLE DMA CONTROLLER DESCR IPTION The !1PD8257-5 is a programmable four-channel Direct Memory Access (DMA) controller. It is designed to sim... |
| Features |
r Channel DMA Controller • Priority DMA Request Logic • Channel Inhibit Logic • Terminal Count and Modulo 128 Outputs • Automatic Load Mode • Single TTL Clock • Single +5V Supply ± 10% • Expandable • 40 Pin Plastic Dual-In-Line Package PIN CONFIGURATION MEMR MARK READY HlDA ADDSTB AEN HRQ Cs ClK RESET DACK2 DACK3 DRQ3 oRQ2 DRQ1 DRQO GND IlPD 8257/ 8257-5 A7 A6 AS A4 TC A3 A2 A, AO vcc DO D, D2 D3 ~ DACKO DACK, Os 06 07 0]"00 A]"AO IIOR IIOW MEMR MEMW ClK RESET READY HRO HlDA AEN ADSTB TC MARK DRQ3 ·0RDo DACK3 ·DACKO CS vCC GND PIN NAMES Data Bus Address Bus tID Read 1/0 Write Memory Read M... |
| Document |
 UPD8257-5 Data Sheet
PDF 450.74KB |
| Distributor | Stock | Price | Buy |
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