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74ABT374A

Octal D-type flip-flop; positive-edge trigger (3-State)

Philips Electronics 

Philips Semiconductors

Octal D-type flip-flop; positive-edge trigger

(3-State)

Product specification

74ABT374A

DC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

Tamb = +25°C

Tamb = –40°C

to +85°C

UNIT

MIN TYP MAX MIN MAX

VIK

Input clamp voltage

VCC = 4.5V; IIK = –18mA

–0.9 –1.2

–1.2 V

VCC = 4.5V; IOH = –3mA; VI = VIL or VIH

2.5 2.9

2.5

V

VOH High-level output voltage

VCC = 5.0V; IOH = –3mA; VI = VIL or VIH

3.0 3.4

3.0

V

VCC = 4.5V; IOH = –32mA; VI = VIL or VIH

2.0 2.4

2.0

V

VOL Low-level output voltage

VCC = 4.5V; IOL = 64mA; VI = VIL or VIH

0.42 0.55

0.55 V

VRST Power-up output low voltage3 VCC = 5.5V; IO = 1mA; VI = GND or VCC

0.13 0.55

0.55 V

II

IOFF

IPU/IPD

IOZH

Input leakage current

Power-off leakage current

Power-up/down 3-State

output current

3-State output High current

VCC = 5.5V; VI = GND or 5.5V

VCC = 0.0V; VO or VI ≤ 4.5V

VCC = 0.0V; IO = 1mA; VI = GND or VCC;

V OE = Don’t Care

VCC = 5.5V; VO = 2.7V; VI = VIL or VIH

±0.01 ±1.0

±5.0 ±100

±5.0 ±50

5.0 50

±1.0 µA

±100 µA

±50 µA

50

µA

IOZL 3-State output Low current

VCC = 5.5V; VO = 0.5V; VI = VIL or VIH

–5.0 –50

–50 µA

ICEX

IO

Output High leakage current

Output current1

VCC = 5.5V; VO = 0.5V; VI = GND or VCC

VCC = 5.5V; VO = 2.5V

5.0 50

50

µA

–50 –100 –180 –50 –180 mA

ICCH

VCC = 5.5V; Outputs High, VI = GND or VCC

110 250

250 µA

ICCL Quiescent supply current

VCC = 5.5V; Outputs Low, VI = GND or VCC

24

30

30 mA

ICCZ

VCC = 5.5V; Outputs 3–State;

VI = GND or VCC

110 250

250 µA

∆ICC

Additional supply current per VCC = 5.5V; one input at 3.4V,

input pin2

other inputs at VCC or GND

0.5 1.5

NOTES:

1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

2. This is the increase in supply current for each input at 3.4V.

3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.

1.5 mA

AC CHARACTERISTICS

GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω

SYMBOL

PARAMETER

WAVEFORM

fMAX

Maximum clock frequency

1

tPLH

Propagation delay

tPHL

CP to Qn

1

tPZH

Output enable time

3

tPZL

to High and Low level

4

tPHZ

Output disable time

3

tPLZ

from High and Low level

4

LIMITS

Tamb = +25oC

VCC = +5.0V

Min

Typ

Max

200

300

1.7

3.4

4.5

2.0

3.8

4.9

1.2

3.5

4.5

2.2

4.3

5.4

1.8

3.6

4.7

1.5

3.0

4.1

Tamb = -40 to

+85oC

VCC = +5.0V ±0.5V

Min

Max

200

1.7

5.1

2.0

5.2

1.2

5.4

2.2

6.2

1.8

5.2

1.5

4.3

UNIT

ns

ns

ns

ns

1995 Sep 06

4

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