SN74HCS74-Q1 Automotive Schmitt-trigger input dual D-type positive-edge-triggered flip-flops w/ clear and preset | TI.com

SN74HCS74-Q1 (ACTIVE) Automotive Schmitt-trigger input dual D-type positive-edge-triggered flip-flops w/ clear and preset

 

Description

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).

Features

  • AEC-Q100 Qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classifcation Level C6
  • 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

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Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) 3-state output Rating Operating temperature range (C)
SN74HCS74-Q1 Order now HC     2     6     2     5     28     0.002     25     7.8     -7.8     No     Automotive     -40 to 125    
SN54HC74 Samples not available HC     2     6     2     3.3
5    
28     0.04     37     5.2     -5.2     No     Military     -55 to 125    
SN74HC74 Order now HC     2     6     2     3.3
5    
28     0.04     37     5.2     -5.2     No     Catalog     -40 to 85    
SN74HC74-EP Order now HC     2     6     2     3.3
5    
28     0.04     37     5.2     -5.2     No     HiRel Enhanced Product     -55 to 125    
SN74HC74-Q1 Order now HC     2     6     2     3.3
5    
28     0.04     37     5.2     -5.2     No     Automotive     -40 to 125