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SN74ACT533

アクティブ

3 ステート出力、オクタル トランスペアレント D タイプ ラッチ

製品詳細

Number of channels 8 Technology family ACT Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 90 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 40 Features Balanced outputs, High speed (tpd 10-50ns), Inverting output, Positive input clamp diode Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 8 Technology family ACT Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 90 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 40 Features Balanced outputs, High speed (tpd 10-50ns), Inverting output, Positive input clamp diode Operating temperature range (°C) -40 to 85 Rating Catalog
SOIC (DW) 20 131.84 mm² (12.8 mm × 10.3 mm) PDIP (N) 20 228.702 mm² (24.33 mm × 9.4 mm) TSSOP (PW) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 11 ns at 5 V
  • Inputs Are TTL-Voltage Compatible
  • 3-State Inverting Outputs Drive Bus Lines Directly

  • 4.5-V to 5.5-V VCC Operation
  • Inputs Accept Voltages to 5.5 V
  • Max tpd of 11 ns at 5 V
  • Inputs Are TTL-Voltage Compatible
  • 3-State Inverting Outputs Drive Bus Lines Directly

The ’ACT533 devices are octal transparent D-type latches with 3-state outputs. When the latch-enable (LE) input is high, the Q\ outputs follow the complements of the data (D) inputs. When LE is taken low, the Q\ outputs are latched at the inverted levels set up at the D inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

(OE)\ does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, (OE)\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The ’ACT533 devices are octal transparent D-type latches with 3-state outputs. When the latch-enable (LE) input is high, the Q\ outputs follow the complements of the data (D) inputs. When LE is taken low, the Q\ outputs are latched at the inverted levels set up at the D inputs.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

(OE)\ does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, (OE)\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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* データシート SN54ACT533, SN74ACT533 データシート (Rev. C) 2002/10/08

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