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邏輯和電壓轉換
正反器、鎖存器和暫存器
D 型鎖存器

SN74AC563

現行

具有 3 態輸出的八路 D 型透明鎖存器

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產品規格表

SN74AC563

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 8 Technology family AC Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 100 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 80 Features Balanced outputs, Flow-through pinout, 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 AC Supply voltage (min) (V) 2 Supply voltage (max) (V) 6 Input type Standard CMOS Output type 3-State Clock frequency (max) (MHz) 100 IOL (max) (mA) 24 IOH (max) (mA) -24 Supply current (max) (µA) 80 Features Balanced outputs, Flow-through pinout, High speed (tpd 10-50ns), Inverting output, Positive input clamp diode Operating temperature range (°C) -40 to 85 Rating Catalog
PDIP (N) 20 228.702 mm² 24.33 x 9.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3 SSOP (DB) 20 56.16 mm² 7.2 x 7.8 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • 2-V to 6-V VCC Operation
  • Inputs Accept Voltages to 6 V
  • Max tpd of 9 ns at 5 V
  • 3-State Inverting Outputs Drive Bus Lines Directly
  • Full Parallel Access for Loading
  • Flow-Through Architecture to Optimize PCB Layout
  • 2-V to 6-V VCC Operation
  • Inputs Accept Voltages to 6 V
  • Max tpd of 9 ns at 5 V
  • 3-State Inverting Outputs Drive Bus Lines Directly
  • Full Parallel Access for Loading
  • Flow-Through Architecture to Optimize PCB Layout

The ’AC563 devices are octal D-type transparent 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 inverse logic 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 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 ’AC563 devices are octal D-type transparent 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 inverse logic 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 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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類型 標題 日期
* Data sheet SN54AC563, SN74AC563 datasheet (Rev. C) 2003年 10月 23日
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022年 12月 15日
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 2021年 7月 26日
Selection guide Logic Guide (Rev. AB) 2017年 6月 12日
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
More literature HiRel Unitrode Power Management Brochure 2009年 7月 7日
User guide LOGIC Pocket Data Book (Rev. B) 2007年 1月 16日
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
Application note TI IBIS File Creation, Validation, and Distribution Processes 2002年 8月 29日
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 1997年 6月 1日
Application note Designing With Logic (Rev. C) 1997年 6月 1日
Application note Input and Output Characteristics of Digital Integrated Circuits 1996年 10月 1日
Application note Live Insertion 1996年 10月 1日
Application note Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc 1996年 4月 1日

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PDIP (N) 20 檢視選項
SOIC (DW) 20 檢視選項
SSOP (DB) 20 檢視選項
TSSOP (PW) 20 檢視選項
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