SN74ABT573A

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具有三態(tài)輸出的八路透明 D 類鎖存器

產品詳情

Number of channels 8 Technology family ABT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 150 IOL (max) (mA) 64 IOH (max) (mA) -32 Supply current (max) (μA) 30000 Features Flow-through pinout, Partial power down (Ioff), Power up 3-state, Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 8 Technology family ABT Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 150 IOL (max) (mA) 64 IOH (max) (mA) -32 Supply current (max) (μA) 30000 Features Flow-through pinout, Partial power down (Ioff), Power up 3-state, Very high speed (tpd 5-10ns) 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 VQFN (RGY) 20 15.75 mm2 4.5 x 3.5
  • Typical VOLP (Output Ground Bounce)
       <1 V at VCC = 5 V, TA = 25°C
  • High-Drive Outputs (–32-mA IOH, 64-mA IOL)
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
  • Typical VOLP (Output Ground Bounce)
       <1 V at VCC = 5 V, TA = 25°C
  • High-Drive Outputs (–32-mA IOH, 64-mA IOL)
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

These 8-bit latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches of the SN54ABT573 and SN74ABT573A are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the 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 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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

These 8-bit latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight latches of the SN54ABT573 and SN74ABT573A are transparent D-type latches. While the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the 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 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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
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SN74AHCT573 正在供貨 具有三態(tài)輸出的八通道透明 D 型鎖存器 Larger voltage range (4.5V to 5.5V)

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類型 標題 下載最新的英語版本 日期
* 數(shù)據(jù)表 SN54ABT573, SN74ABT573A 數(shù)據(jù)表 (Rev. F) 2003年 9月 9日
應用手冊 慢速或浮點 CMOS 輸入的影響 (Rev. E) PDF | HTML 英語版 (Rev.E) 2025年 3月 26日
應用手冊 Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022年 12月 15日
選擇指南 Logic Guide (Rev. AB) 2017年 6月 12日
應用手冊 Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
選擇指南 邏輯器件指南 2014 (Rev. AA) 最新英語版本 (Rev.AC) PDF | HTML 2014年 11月 17日
選擇指南 《高級總線接口邏輯器件選擇指南》 英語版 2010年 7月 7日
用戶指南 LOGIC Pocket Data Book (Rev. B) 2007年 1月 16日
應用手冊 選擇正確的電平轉換解決方案 (Rev. A) 英語版 (Rev.A) 2006年 3月 23日
應用手冊 Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日
應用手冊 Quad Flatpack No-Lead Logic Packages (Rev. D) 2004年 2月 16日
應用手冊 TI IBIS File Creation, Validation, and Distribution Processes 2002年 8月 29日
應用手冊 Power-Up 3-State (PU3S) Circuits in TI Standard Logic Devices 2002年 5月 10日
應用手冊 Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 1997年 8月 1日
應用手冊 Advanced BiCMOS Technology (ABT) Logic Characterization Information (Rev. B) 1997年 6月 1日
應用手冊 使用邏輯器件進行設計 (Rev. C) 1997年 6月 1日
應用手冊 Advanced BiCMOS Technology (ABT) Logic Enables Optimal System Design (Rev. A) 1997年 3月 1日
應用手冊 Family of Curves Demonstrating Output Skews for Advanced BiCMOS Devices (Rev. A) 1996年 12月 1日
應用手冊 Input and Output Characteristics of Digital Integrated Circuits 1996年 10月 1日
應用手冊 Live Insertion 1996年 10月 1日
應用手冊 Understanding Advanced Bus-Interface Products Design Guide 1996年 5月 1日
選擇指南 Logic Guide (Rev. AC) PDF | HTML 1994年 6月 1日

設計和開發(fā)

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用戶指南: PDF | HTML
英語版 (Rev.B): PDF | HTML
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英語版 (Rev.A): PDF | HTML
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封裝 引腳 CAD 符號、封裝和 3D 模型
PDIP (N) 20 Ultra Librarian
SOIC (DW) 20 Ultra Librarian
SSOP (DB) 20 Ultra Librarian
TSSOP (PW) 20 Ultra Librarian
VQFN (RGY) 20 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點
  • 封裝廠地點

支持和培訓

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