SN74HC74DBR datasheet(8/41 Pages) TI2

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6.10 Switching Characteristics - 54

over operating free-air temperature range; typical values measured at TA = 25°C (unless otherwise noted).

PARAMETER

FROM

VCC

Operating free-air temperature (TA)

UNIT

25°C

–40°C to 85°C

–55°C to 125°C

MIN

TYP MAX

MIN

TYP MAX

MIN

TYP MAX

fmax

2 V

4.2

MHz

4.5 V

6 V

tpd

Propagation delay

PRE or

CLR

Q or Q

2 V

230

290

345

4.5 V

6 V

CLK

Q or Q

2 V

175

220

250

4.5 V

6 V

Transition-time

Q or Q

2 V

110

4.5 V

6 V

6.11 Operating Characteristics

over operating free-air temperature range; typical values measured at TA = 25°C (unless otherwise noted).

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX UNIT

Cpd

Power dissipation capacitance

per gate

No load

2 V to 6 V

6.12 Typical Characteristics

TA = 25°C

IOH Output High Current (mA)

2-V

4.5-V

6-V

Figure 6-1. Typical output voltage in the high state

(VOH)

IOL Output Low Current (mA)

0.05

0.1

0.15

0.2

0.25

0.3

2-V

4.5-V

6-V

Figure 6-2. Typical output voltage in the low state

(VOL)

SN74HC74, SN54HC74

SCLS094F – DECEMBER 1982 – REVISED JUNE 2021

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