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邏輯和電壓轉換
正反器、鎖存器和暫存器
移位暫存器

SN74HC595B

現行

具有 3 態輸出的 8 位元移位暫存器

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產品規格表

SN74HC595B

現行
立即訂購

產品詳細資料

Configuration Serial-in, Parallel-out Bits (#) 8 Technology family HC Input type Standard CMOS Output type 3-State Clock frequency (MHz) 24 IOL (max) (mA) 7.8 IOH (max) (mA) -7.8 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
Configuration Serial-in, Parallel-out Bits (#) 8 Technology family HC Input type Standard CMOS Output type 3-State Clock frequency (MHz) 24 IOL (max) (mA) 7.8 IOH (max) (mA) -7.8 Supply current (max) (µA) 160 Features Balanced outputs, High speed (tpd 10-50ns), Positive input clamp diode Operating temperature range (°C) -55 to 125 Rating Catalog
X1QFN (RWN) 16 6.25 mm² (2.5 mm × 2.5 mm)
  • 8-Bit Serial-In, Parallel-Out Shift Registers
  • Available in Ultra Small Logic QFN package(0.5 mm
    max height)
  • Over-Voltage Tolerant on Inputs Independent of Vcc
  • Wide Operating Voltage Range of 2 V to 6 V
  • High-Current 3-State Outputs Can Drive Up to 15
    LSTTL Loads
  • Low Power Consumption: 80-µA (Maximum) ICC
  • tpd = 13 ns (Typical)
  • ±6-mA Output Drive at 5 V
  • Low Input Current: 1 µA (Maximum)
  • Shift Register Has Direct Clear
  • -55oC to 125oC Operating Temperature
  • 8-Bit Serial-In, Parallel-Out Shift Registers
  • Available in Ultra Small Logic QFN package(0.5 mm
    max height)
  • Over-Voltage Tolerant on Inputs Independent of Vcc
  • Wide Operating Voltage Range of 2 V to 6 V
  • High-Current 3-State Outputs Can Drive Up to 15
    LSTTL Loads
  • Low Power Consumption: 80-µA (Maximum) ICC
  • tpd = 13 ns (Typical)
  • ±6-mA Output Drive at 5 V
  • Low Input Current: 1 µA (Maximum)
  • Shift Register Has Direct Clear
  • -55oC to 125oC Operating Temperature

The SN74HC595B devices contain an 8-bit, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift register and storage register. The shift register has a direct overriding clear (SRCLR) input, serial (SER) input, and serial outputs for cascading. When the output-enable (OE) input is high, the all outputs are in the high-impedance state except QH’.

The SN74HC595B devices contain an 8-bit, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift register and storage register. The shift register has a direct overriding clear (SRCLR) input, serial (SER) input, and serial outputs for cascading. When the output-enable (OE) input is high, the all outputs are in the high-impedance state except QH’.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 SN74HC595B 8-Bit Shift Registers With 3-State Output Registers datasheet PDF | HTML 2016/2/15
應用說明 Increase the Number of Outputs on a Microcontroller PDF | HTML 2020/10/27
技術文章 The next-generation QFN: Do you have what it takes to use it? PDF | HTML 2016/9/14

設計與開發

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模擬型號

SN74HC595B IBIS Model

SCLM118.ZIP (77 KB) - IBIS 模型
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參考設計

TIDA-01233 — 超小型、靈活的 LED 擴展參考設計

本文件介紹兩項參考設計，分別採用具 3 態輸出暫存器的 SN74HC595B 8 位元移位暫存器，以及具 3 態輸出的 SN74LVC244A 八通道緩衝器，用以將微控制器上的三個通用輸出腳位擴展為八個甚至更多的輸出。這兩款裝置皆採用超小型 X2SON 封裝。七段顯示器驅動器參考設計著重於以可安裝於顯示模組下方的硬體，獨立控制七段顯示器中的八顆 LED。8×8 LED 矩陣參考設計旨在驅動排列為 8×8 矩陣的 64 顆 LED，並可透過面板化方式擴充為更大型的顯示系統。
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
X1QFN (RWN) 16 Ultra Librarian
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