CY74FCT16373T datasheet(3/7 Pages) TI

Part #	CY74FCT16373T

Description	16-Bit Latches

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Manufacturer	TI [Texas Instruments]

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CY74FCT16373T

CY74FCT162373T

3

Output Drive Characteristics for CY74FCT162373T

Parameter

Description

Test Conditions

Min.

Typ.[4]

Max.

Unit

IODL

Output LOW Current[6]

VCC=5V, VIN=VIH or VIL, VOUT=1.5V

60

115

150

mA

IODH

Output HIGH Current[6]

VCC=5V, VIN=VIH or VIL, VOUT=1.5V

−60

−115

−150

mA

VOH

Output HIGH Voltage

VCC=Min., IOH=−24 mA

2.4

3.3

V

VOL

Output LOW Voltage

VCC=Min., IOL=24 mA

0.3

0.55

V

Capacitance[5] (TA = +25˚C, f = 1.0 MHz)

Parameter

Description

Test Conditions

Typ.[4]

Max.

Unit

CIN

Input Capacitance

VIN = 0V

4.5

6.0

pF

COUT

Output Capacitance

VOUT = 0V

5.5

8.0

pF

Power Supply Characteristics

Parameter

Description

Test Conditions

Typ.[4]

Max.

Unit

ICC

Quiescent Power Supply Current VCC=Max.

VIN≤0.2V,

VIN≥VCC−0.2V

5

500

µA

∆I

CC

Quiescent Power Supply Current

(TTL inputs HIGH)

VCC=Max.

VIN=3.4V

[8]

0.5

1.5

mA

ICCD

Dynamic Power Supply

Current[9]

VCC=Max., One Input

Toggling, 50% Duty Cycle,

Outputs Open, OE=GND

VIN=VCC or

VIN=GND

60

100

µA/MHz

IC

Total Power Supply Current[10]

VCC=Max., f1=10 MHz,

50% Duty Cycle, Outputs

Open, One Bit Toggling,

OE=GND, LE=VCC

VIN=VCC or

VIN=GND

0.6

1.5

mA

VIN=3.4V or

VIN=GND

0.9

2.3

mA

VCC=Max., f1=2.5 MHz,

50% Duty Cycle, Outputs

Open, Sixteen Bits Toggling,

OE=GND, LE=VCC

VIN=VCC or

VIN=GND

2.4

4.5[11]

mA

VIN=3.4V or

VIN=GND

6.4

16.5[11]

mA

Notes:

8.

Per TTL driven input (VIN=3.4V); all other inputs at VCC or GND.

9.

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

10. IC=IQUIESCENT + IINPUTS + IDYNAMIC

IC

=ICC+∆ICCDHNT+ICCD(f0/2 + f1N1)

ICC

=

Quiescent Current with CMOS input levels

∆I

CC

=

Power Supply Current for a TTL HIGH input(VIN=3.4V)

DH

=

Duty Cycle for TTL inputs HIGH

NT

=

Number of TTL inputs at DH

ICCD = Dynamic Current caused by an input transition pair (HLH or LHL)

f0

=

Clock frequency for registered devices, otherwise zero

f1

=

Input signal frequency

N1

=

Number of inputs changing at f1

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

11. Values for these conditions are examples of the ICC formula. These limits are speciﬁed but not tested.

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