74FST3345DT datasheet(4/8 Pages) ONSEMI

номер детали	74FST3345DT

подробное описание детали	10?묪it Low Power Bus Switch

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74FST3384

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DC ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Conditions

VCC

(V)

TA = *405C to )855C

Unit

Min

Typ*

Max

VIK

Clamp Diode Resistance

IIN = *18mA

4.5

*1.2

V

VIH

High−Level Input Voltage

4.0 to 5.5

2.0

V

VIL

Low−Level Input Voltage

4.0 to 5.5

0.8

V

II

Input Leakage Current

0 v VIN v 5.5 V

5.5

$1.0

mA

IOZ

OFF−STATE Leakage Current

0 v A, B v VCC

5.5

$1.0

mA

RON

Switch On Resistance (Note 6)

VIN = 0 V, IIN = 64 mA

4.5

4

7

W

VIN = 0 V, IIN = 30 mA

4.5

4

7

VIN = 2.4 V, IIN = 15 mA

4.5

8

15

VIN = 2.4 V, IIN = 15 mA

4.0

11

20

ICC

Quiescent Supply Current

VIN = VCC or GND, IOUT = 0

5.5

3

mA

DICC

Increase In ICC per Input

One input at 3.4 V, Other inputs at VCC or GND

5.5

2.5

mA

*Typical values are at VCC = 5.0 V and TA = 25°C.

6. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower

of the voltages on the two (A or B) pins.

AC ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Conditions

TA = *405C to )855C

CL = 50 pF, RU = RD = 500 W

Unit

VCC = 4.5−5.5 V

VCC = 4.0 V

Min

Max

Min

Max

tPHL,

tPLH

Prop Delay Bus to Bus (Note 7)

VI = OPEN

0.25

ns

tPZH,

tPZL

Output Enable Time, IOE to Bus A, B

VI = OPEN for tPZH

1.0

5.7

6.2

ns

tPHZ,

tPLZ

Output Disable Time, IOE to Bus A, B

VI = OPEN for tPHZ

1.0

5.2

5.5

ns

7. This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the

typical On resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).

CAPACITANCE (Note 8)

Symbol

Parameter

Conditions

Typ

Max

Unit

CIN

Control Pin Input Capacitance

VCC = 5.0 V

6

pF

CI/O

Port Input/Output Capacitance

VCC, OE = 5.0 V

13

pF

8. TA = )25°C, f = 1 MHz, Capacitance is characterized but not tested.

Аналогичный номер детали - 74FST3345DT

производитель	номер детали	датащи	подробное описание детали
ON Semiconductor	74FST3345DT	87Kb / 6P	8-Bit Bus Switch January, 2005 ??Rev. 1
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Аналогичный номер детали - 74FST3345DT

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