PI74FCT273ATQ 参数 Datasheet PDF下载

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PI74FCT273T

(25Ω Series) P174FCT2273T

Ω

Octal D Flip-Flop with Master Reset

Power Supply Characteristics

Parameters Description

I

CC

∆I

CC

I

CCD

Quiescent Power

Supply Current

Supply Current per

per Input @ TTL HIGH

Supply Current per

Input per MHx

(4)

Total Power Supply

Current

(6)

V

CC

= Max.

V

CC

= Max.

Test Conditions

(1)

V

IN

= GND or V

CC

V

IN

= 3.4V

(3)

Min.

Typ

(2)

0.1

0.5

0.15

Max.

500

2.0

0.25

Units

µA

mA

mA/

MHz

mA

V

CC

= Max., Outputs Open

V

IN

= V

CC

MR = Vcc, One Input Toggling V

IN

= GND

50% Duty Cycle

V

CC

= Max., Outputs Open

f

CP

= 10 MH

Z

, 50% Duty Cycle

MR = Vcc, 50% Duty Cycle

One Bit toggling at f

I

= 5 MH

Z

V

IN

= V

CC

V

IN

= GND

V

IN

= 3.4V

V

IN

= GND

I

C

1.5

2.0

3.8

3.5

(5)

3.5

(5)

7.3

(5)

16.3

(5)

V

CC

= Max., Outputs Open

V

IN

= V

CC

f

CP

= 10 MH

Z

, 50% Duty Cycle V

IN

= GND

MR = V

CC

, 50% Duty Cycle

V

IN

= 3.4V

Eight Bits toggling at

V

IN

= GND

f

I

= 2.5 MH

Z

, 50% Duty Cycle

6.0

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.

2. Typical values are at Vcc = 5.0V, +25°C ambient.

3. Per TTL driven input (V

IN

= 3.4V); all other inputs at Vcc or GND.

4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.

5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.

6. I

C

=I

QUIESCENT

+ I

INPUTS

+ I

DYNAMIC

I

C

= I

CC

+

∆I

CC

D

H

N

T

+ I

CCD

(f

CP

/2 + f

I

N

I

)

I

CC

= Quiescent Current

∆I

CC

= Power Supply Current for a TTL High Input (V

IN

= 3.4V)

D

H

= Duty Cycle for TTL Inputs High

N

T

= Number of TTL Inputs at D

H

I

CCD

= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

f

CP

= Clock Frequency for Register Devices (Zero for Non-Register Devices)

f

I

= Input Frequency

N

I

= Number of Inputs at f

I

All currents are in milliamps and all frequencies are in megahertz.

3

PS2013A 03/09/96