SN74HCS74 SN74HCS74 | 德州仪器 TI.com.cn

SN74HCS74
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SN74HCS74

 

描述

The device contains two independent D-type positive-edge-triggered flip-flops. All inputs include Schmitt triggers, allowing for slow or noisy input signals. 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).

特性

  • Wide operating voltage range: 2 V to 6 V
  • Schmitt-trigger inputs allow for slow or noisy input signals
  • Low power consumption
    • Typical ICC of 100 nA
    • Typical input leakage current of ±100 nA
  • ±7.8-mA output drive at 5 V
  • Extended ambient temperature range: –40°C to +125°C, TA

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参数

与其它产品相比 D 类触发器 邮件 下载到电子表格中
Part number 立即下单 Technology Family Input type Output type VCC (Min) (V) VCC (Max) (V) Channels (#) Clock Frequency (Max) (MHz) ICC (uA) IOL (Max) (mA) IOH (Max) (mA) Features Rating Package Group
SN74HCS74 立即下单 HCS     Schmitt-Trigger     Push-Pull     2     6     2     65     2     7.8     -7.8     Balanced outputs
High speed (tpd 10-50ns)
Positive input clamp diode    
Catalog     TSSOP | 14    
SN74HCS74-Q1 立即下单 HCS     Schmitt-Trigger     Push-Pull     2     6     2     45     2     7.8     -7.8     Balanced outputs
High speed (tpd 10-50ns)
Positive input clamp diode    
Automotive     SOIC | 14
TSSOP | 14