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SN74AHCT74-EP Datasheet, PDF (3/9 Pages) Texas Instruments – DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP WITH CLEAR AND PRESET | |||
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SN74AHCT74-EP
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP
WITH CLEAR AND PRESET
SCLS495â JUNE 2003
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)â
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.5 V to 7 V
Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . â65°C to 150°C
â Stresses beyond those listed under âabsolute maximum ratingsâ may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under ârecommended operating conditionsâ is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
MIN MAX UNIT
VCC
VIH
VIL
VI
VO
IOH
IOL
ât/âv
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage
Output voltage
High-level output current
Low-level output current
Input transition rise or fall rate
4.5 5.5 V
2
V
0.8 V
0 5.5 V
0 VCC V
â8 mA
8 mA
20 ns/V
TA
Operating free-air temperature
â55 125 °C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN
MIN TYP MAX
VOH
IOH = â50 mA
IOH = â8 mA
4.4 4.5
4.4
4.5 V
3.94
3.8
VOL
IOL = 50 mA
IOL = 8 mA
0.1
4.5 V
0.36
II
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
ICC
VI = VCC or GND, IO = 0
5.5 V
2
âICCâ¡
One input at 3.4 V, Other inputs at VCC or GND
5.5 V
1.35
Ci
VI = VCC or GND
5V
2
10
â¡ This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC.
MAX
0.1
0.44
±1
20
1.5
UNIT
V
V
mA
mA
mA
pF
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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