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UPD784938 Datasheet(PDF) 48 Page - NEC |
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UPD784938 Datasheet(HTML) 48 Page - NEC |
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48 / 733 page  CHAPTER 1 GENERAL 48 Preliminary User’s Manual U13987EJ1V0UM00 Part Number µPD784935 µPD784936 µPD784937 µPD784938 µPD78F4938 Item Interrupt Hardware source 27 (Internal: 20, External: 7 (sampling clock variable input: 1)) Software source BRK instruction, BRKCS instruction, operand error Non-maskable Internal: 1, External: 1 Maskable Internal: 19, External: 6 4 levels of programmable priority 3 processing type: Vectored interrupt/macro service/context switching Supply voltage • VDD = 4.0 to 5.5 V • VDD = 4.5 to 5.5 V (Main clock: @ fXX = 12.58-MHz operation, (Main clock: Internal system clock = @ fXX, fCYK = 79 ns) @ fXX = 12.58- • VDD = 3.5 to 5.5 V MHz operation, (Other than above, fCYK = 159 ns) Internal system clock = @ fXX, fCYK = 79 ns) • VDD = 4.0 to 5.5 V (Other than above, fCYK = 159 ns) Package 100-pin plastic QFP (14 × 20 mm) |
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