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正反器、鎖存器和暫存器
電壓轉換正反器、閂鎖與暫存器

SN74LV2T74

現行

1.8V 至 5.5V 單電源供電雙路 D 型正緣觸發正反器

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產品規格表

SN74LV2T74

現行
產品規格表 立即訂購

產品詳細資料

Technology family LV1T Number of channels 2 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Data rate (max) (Mbps) 150 IOH (max) (mA) -8 IOL (max) (mA) 8 Supply current (max) (µA) 20 Features Balanced outputs, Over-voltage tolerant inputs, Voltage translation Input type Standard CMOS, TTL-Compatible CMOS Output type Push-Pull Operating temperature range (°C) -40 to 125
Technology family LV1T Number of channels 2 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Data rate (max) (Mbps) 150 IOH (max) (mA) -8 IOL (max) (mA) 8 Supply current (max) (µA) 20 Features Balanced outputs, Over-voltage tolerant inputs, Voltage translation Input type Standard CMOS, TTL-Compatible CMOS Output type Push-Pull Operating temperature range (°C) -40 to 125
TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm) WQFN (BQA) 14 7.5 mm² (3 mm × 2.5 mm)
  • Wide operating range of 1.8 V to 5.5 V

  • Single-supply voltage translator (refer to LVxT Enhanced Input Voltage):

    • Up translation:

      • 1.2 V to 1.8 V
      • 1.5 V to 2.5 V
      • 1.8 V to 3.3 V
      • 3.3 V to 5.0 V
    • Down translation:
      • 5.0 V, 3.3 V, 2.5 V to 1.8 V
      • 5.0 V, 3.3 V to 2.5 V
      • 5.0 V to 3.3 V
  • 5.5-V tolerant input pins
  • Supports standard pinouts
  • Up to 150 Mbps with 5-V or 3.3-V V CC
  • Latch-up performance exceeds 250 mA per JESD 17
  • Wide operating range of 1.8 V to 5.5 V

  • Single-supply voltage translator (refer to LVxT Enhanced Input Voltage):

    • Up translation:

      • 1.2 V to 1.8 V
      • 1.5 V to 2.5 V
      • 1.8 V to 3.3 V
      • 3.3 V to 5.0 V
    • Down translation:
      • 5.0 V, 3.3 V, 2.5 V to 1.8 V
      • 5.0 V, 3.3 V to 2.5 V
      • 5.0 V to 3.3 V
  • 5.5-V tolerant input pins
  • Supports standard pinouts
  • Up to 150 Mbps with 5-V or 3.3-V V CC
  • Latch-up performance exceeds 250 mA per JESD 17

The SN74LV2T74 contains two independent D-type positive-edge-triggered flip-flops. A low level at the preset ( PRE) input sets the output high. A low level at the clear ( CLR) input resets the output low. Preset and clear functions are asynchronous and not dependent on the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements is transferred to the outputs (Q, Q) on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the input clock (CLK) signal. Following the hold-time interval, data at the data (D) input can be changed without affecting the levels at the outputs (Q, Q). The output level is referenced to the supply voltage (V CC) and supports 1.8-V, 2.5-V, 3.3-V, and 5-V CMOS levels.

The input is designed with a lower threshold circuit to support up translation for lower voltage CMOS inputs (for example, 1.2 V input to 1.8 V output or 1.8 V input to 3.3 V output). In addition, the 5-V tolerant input pins enable down translation (for example, 3.3 V to 2.5 V output).

The SN74LV2T74 contains two independent D-type positive-edge-triggered flip-flops. A low level at the preset ( PRE) input sets the output high. A low level at the clear ( CLR) input resets the output low. Preset and clear functions are asynchronous and not dependent on the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements is transferred to the outputs (Q, Q) on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the input clock (CLK) signal. Following the hold-time interval, data at the data (D) input can be changed without affecting the levels at the outputs (Q, Q). The output level is referenced to the supply voltage (V CC) and supports 1.8-V, 2.5-V, 3.3-V, and 5-V CMOS levels.

The input is designed with a lower threshold circuit to support up translation for lower voltage CMOS inputs (for example, 1.2 V input to 1.8 V output or 1.8 V input to 3.3 V output). In addition, the 5-V tolerant input pins enable down translation (for example, 3.3 V to 2.5 V output).
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* 資料表 SN74LV2T74 Dual D-Type Flip-Flop With Integrated Translation datasheet PDF | HTML 2023/5/24

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