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74HCT74 Series

Dual D-Type Positive-Edge-Triggered Flip-Flops With Clear and Preset

Manufacturer: Texas Instruments

Catalog(16 parts)

PartOutput TypeNumber of Bits per Element▲▼Voltage - Supply▲▼Voltage - Supply▲▼Max Propagation Delay @ V, Max CL▲▼Package / CasePackage / Case▲▼Package / Case▲▼Mounting TypeClock Frequency▲▼Operating Temperature▲▼Operating Temperature▲▼FunctionInput Capacitance▲▼Number of Elements▲▼TypeCurrent - Quiescent (Iq)▲▼Current - Output High, Low▲▼Trigger TypeSupplier Device PackagePackage / Case▲▼Package / Case▲▼Package / Case▲▼Package / Case▲▼Package / Case▲▼
Texas Instruments
SN74HCT74N
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-DIP (0.300", 7.62mm)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-DIP
0.007619999814778566 m
0.007619999814778566 m
Through Hole
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
SN74HCT74DRE4
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
SN74HCT74DG4
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
CD74HCT74ME4
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
3.4999999343199306e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
50000000 Hz
125 °C
-55 °C
Reset, Set(Preset)
9.999999960041972e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
CD74HCT74M
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
3.4999999343199306e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
50000000 Hz
125 °C
-55 °C
Reset, Set(Preset)
9.999999960041972e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
SN74HCT74NSR
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.209", 5.30mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SOIC
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
14-SO
0.0052999998442828655 m
0.005308600142598152 m
Texas Instruments
SN74HCT74DRG4
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
CD74HCT74E
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-DIP (0.300", 7.62mm)
Complementary
1 ul
5.5 V
4.5 V
3.4999999343199306e-8 s
14-DIP
0.007619999814778566 m
0.007619999814778566 m
Through Hole
50000000 Hz
125 °C
-55 °C
Reset, Set(Preset)
9.999999960041972e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
SN74HCT74PW
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-TSSOP (0.173", 4.40mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-TSSOP
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
14-TSSOP
0.004394200164824724 m
0.004399999976158142 m
Texas Instruments
SN74HCT74DBR
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SSOP (0.209", 5.30mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SSOP
0.0052999998442828655 m
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
14-SSOP
0.005308600142598152 m
Texas Instruments
SN74HCT74NS
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.209", 5.30mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SOIC
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
14-SO
0.0052999998442828655 m
0.005308600142598152 m
Texas Instruments
CD74HCT74M96
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
3.4999999343199306e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
50000000 Hz
125 °C
-55 °C
Reset, Set(Preset)
9.999999960041972e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
SN74HCT74PWT
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-TSSOP (0.173", 4.40mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-TSSOP
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
14-TSSOP
0.004394200164824724 m
0.004399999976158142 m
Texas Instruments
SN74HCT74DE4
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
SN74HCT74DT
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-SOIC (0.154", 3.90mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-SOIC
0.003899999894201755 m
0.003911599982529879 m
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
Texas Instruments
SN74HCT74PWR
Flip Flop 2 Element D-Type 1 Bit Positive Edge 14-TSSOP (0.173", 4.40mm Width)
Complementary
1 ul
5.5 V
4.5 V
2.5000000292152436e-8 s
14-TSSOP
Surface Mount
46000000 Hz
85 °C
-40 °C
Reset, Set(Preset)
2.9999999880125916e-12 F
2 ul
D-Type
0.000003999999989900971 A
0.004000000189989805 A, 0.004000000189989805 A
Positive Edge
14-TSSOP
0.004394200164824724 m
0.004399999976158142 m

Key Features

• Operating voltage range of 4.5 V to 5.5 VOutputs can drive up to 10 LSTTL loadsLow power consumption, 40-µA max I CCTypical t pd = 17 ns±4-mA output drive at 5 VLow input current of 1 µA maxInputs are TTL-voltage compatibleOperating voltage range of 4.5 V to 5.5 VOutputs can drive up to 10 LSTTL loadsLow power consumption, 40-µA max I CCTypical t pd = 17 ns±4-mA output drive at 5 VLow input current of 1 µA maxInputs are TTL-voltage compatible

Description

AI
The ’HCT74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset ( PRE) or clear ( CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs 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 CLK. Following the hold-time interval, data at the D input may be changed without affecting the levels at the outputs. The ’HCT74 devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset ( PRE) or clear ( CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements are transferred to the outputs 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 CLK. Following the hold-time interval, data at the D input may be changed without affecting the levels at the outputs.