1111 datasheet(4/6 Pages) PHILIPS

4 / 6 page

Philips Semiconductors

Product specification

74ABT821

10-bit D-type flip-flop; positive-edge trigger

(3-State)

1995 Sep 06

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

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

2.5

2.9

2.5

VOH

High-level output voltage

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

3.0

3.4

3.0

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

2.0

2.4

2.0

VOL

Low-level output voltage

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

0.42

0.55

VRST

Power-up output low

voltage3

VCC = 5.5V; IO = 1mA; VI = GND or VCC

0.13

0.55

Input leakage current

VCC = 5.5V; VI = GND or 5.5V

±0.01

±1.0

µA

IOFF

Power-off leakage current

VCC = 0.0V; VO or VI ≤ 4.5V

±5.0

±100

µA

IPU/IPD

Power-up/down 3-State

output current4

VCC = 2.0V; VO = 0.5V; VI = GND or VCC;

V OE = VCC

±5.0

±50

µA

IOZH

3-State output High current

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

5.0

µA

IOZL

3-State output Low current

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

–5.0

–50

µA

ICEX

Output High leakage current

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

5.0

µA

Output current1

VCC = 5.5V; VO = 2.5V

–50

–100

–180

–50

–180

ICCH

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

0.5

250

µA

ICCL

Quiescent supply current

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

ICCZ

VCC = 5.5V; Outputs 3-State;

VI = GND or VCC

0.5

250

µA

∆ICC

Additional supply current per

input pin2

VCC = 5.5V; one input at 3.4V,

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.

4. This parameter is valid for any VCC between 0V and 2.1V with a transition time of up to 10msec. For VCC = 2.1V to VCC = 5V " 10%, a

transition time of up to 100

µsec is permitted.

AC CHARACTERISTICS

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

LIMITS

SYMBOL

PARAMETER

WAVEFORM

Tamb = +25oC

VCC = +5.0V

Tamb = -40 to

+85oC

VCC = +5.0V ±0.5V

UNIT

Min

Typ

Max

Typ

Max

fMAX

Maximum clock frequency

125

185

125

tPLH

tPHL

Propagation delay

CP to Qn

2.1

2.8

4.1

4.6

5.6

6.2

2.1

2.8

6.2

6.7

tPZH

tPZL

Output enable time

to High and Low level

1.0

2.2

3.0

4.1

4.5

5.6

1.0

2.2

5.3

6.3

tPHZ

tPLZ

Output disable time

from High and Low level

2.7

2.8

4.7

4.6

6.2

6.1

2.7

2.8

6.7

6.5

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