Datenblatt-Suchmaschine für elektronische Bauteile |
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TC74ACT640FW Datenblatt(PDF) 2 Page - Toshiba Semiconductor |
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TC74ACT640FW Datenblatt(HTML) 2 Page - Toshiba Semiconductor |
2 / 11 page TC51WHM516AXBN65,70 2002-08-22 2/11 BLOCK DIAGRAM OPERATION MODE MODE CE1 CE2 OE WE LB UB Add I/O1 to I/O8 I/O9 to I/O16 POWER Read(Word) L H L H L L X DOUT DOUT IDDO Read(Lower Byte) L H L H L H X DOUT High-Z IDDO Read(Upper Byte) L H L H H L X High-Z DOUT IDDO Write(Word) L H X L L L X DIN DIN IDDO Write(Lower Byte) L H X L L H X DIN Invalid IDDO Write(Upper Byte) L H X L H L X Invalid DIN IDDO Outputs Disabled L H H H X X X High-Z High-Z IDDO Standby H H X X X X X High-Z High-Z IDDS Deep Power-down Standby H L X X X X X High-Z High-Z IDDSD Notes: L = Low-level Input(VIL), H = High-level Input(VIH), X = VIH or VIL, High-Z = High-impedance VDD GND I/O1 CE I/O8 CE I/O9 I/O16 OE UB LB A0 A1 A2 A3 A4 A5 CE2 MEMORY CELL ARRAY 4,096 × 512 × 16 (33,554,432) CONTROL SIGNAL GENERATOR SENSE AMP A6 CE A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 COLUMN ADDRESS DECODER COLUMN ADDRESS BUFFER I/O2 I/O3 I/O5 I/O4 I/O6 I/O7 I/O15 I/O14 I/O13 I/O12 I/O11 I/O10 A7 A8 REFRESH CONTROL REFRESH ADDRESS COUNTER WE CE1 A20 |
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