74FST3245DT 데이터 시트보기 (PDF) - ON Semiconductor

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74FST3245DT

8−Bit Bus Switch

ON Semiconductor 

74FST3245

DC ELECTRICAL CHARACTERISTICS

VCC

TA = −40_C to )85_C

Symbol

Parameter

Conditions

(V)

Min Typ* Max Unit

VIK Clamp Diode Resistance

IIN = −18mA

4.5

VIH High−Level Input Voltage

4.0 to 5.5 2.0

VIL Low−Level Input Voltage

4.0 to 5.5

II

Input Leakage Current

0 v VIN v 5.5 V

5.5

IOZ OFF−STATE Leakage Current 0 v A, B v VCC

5.5

RON Switch On Resistance (Note 6) VIN = 0 V, IIN = 64 mA

4.5

VIN = 0 V, IIN = 30 mA

4.5

VIN = 2.4 V, IIN = 15 mA

4.5

VIN = 2.4 V, IIN = 15 mA

4.0

ICC Quiescent Supply Current

VIN = VCC or GND, IOUT = 0

5.5

DICC Increase In ICC per Input

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

5.5

*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.

−1.2 V

V

0.8

V

$1.0 mA

$1.0 mA

4

7

W

4

7

8

15

11

20

3

mA

2.5 mA

AC ELECTRICAL CHARACTERISTICS

Limits

Symbol

Parameter

Conditions

TA = −40_C to )85_C

VCC = 4.5 to 5.5 V

VCC = 4.0 V

Figures Min

Max

Min

Max Unit

tPHL,

tPLH

Prop Delay Bus to Bus

(Note 7)

VI = OPEN

3 and 4

0.25

0.25 ns

tPZH,

tPZL

Output Enable Time

VI = 7 V for tPZL

VI = OPEN for tPZH

3 and 4

1.5

5.9

6.4

ns

tPHZ,

tPLZ

Output Disable Time

VI = 7 V for tPLZ

VI = OPEN for tPHZ

3 and 4

1.5

6.0

5.7

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

CIN Control Pin Input Capacitance

VCC = 5.0 V

CI/O Input/Output Capacitance

VCC, OE = 5.0 V

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

Typ

Max Unit

3

pF

5

pF

ORDERING INFORMATION

Device Order Number

74FST3245DW

Package

SOIC−20

Shipping†

38 Units / Rail

74FST3245DWR2

SOIC−20

1000 Units / Tape & Reel

74FST3245DT

TSSOP−20*

(Pb−Free)

75 Units / Rail

74FST3245DTR2

TSSOP−20*

(Pb−Free)

2500 Units / Tape & Reel

74FST3245QS

QSOP−20

55 Units / Rail

74FST3245QSR

QSOP−20

2500 Units / Tape & Reel

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

*This package is inherently Pb−Free.

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