74LVC245ADB datasheet(8/20 Pages) PHILIPS

No de pièce	74LVC245ADB

Description	Octal bus transceiver with direction pin with 5 V tolerant input/outputs (3-state)

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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8 / 20 page

2003 May 07

8

Philips Semiconductors

Product speciﬁcation

Octal bus transceiver with direction pin with 5 V tolerant

input/outputs (3-state)

74LVC245A;

74LVCH245A

Notes

1. All typical values are measured at VCC = 3.3 V and Tamb =25 °C.

2. For bus-hold parts, the bus-hold circuit is switched off when VI >VCC allowing 5.5 V on the input terminal.

3. For I/O ports the parameter IOZ includes the input leakage current.

4. Valid for data inputs of bus-hold parts (74LVCH245A) only.

5. For data inputs only, control inputs do not have a bus-hold circuit.

6. The specified sustaining current at the data input holds the input below the specified VI level.

7. The specified overdrive current at the data input forces the data input to the opposite logic input state.

Tamb = −40 to +125 °C

VIH

HIGH-level input

voltage

1.2

VCC

−−

V

2.7 to 3.6

2.0

−−

V

VIL

LOW-level input voltage

1.2

−−

0V

2.7 to 3.6

−−

0.8

V

VOH

HIGH-level output

voltage

VI =VIH or VIL

IO = −100 µA

2.7 to 3.6

VCC − 0.3

−−

V

IO = −12 mA

2.7

VCC − 0.65 −−

V

IO = −18 mA

3.0

VCC − 0.75 −−

V

IO = −24 mA

3.0

VCC − 1

−−

V

VOL

LOW-level output

voltage

VI =VIH or VIL

IO = 100 µA

2.7 to 3.6

−−

0.3

V

IO = 12 mA

2.7

−−

0.6

V

IO = 24 mA

3.0

−−

0.8

V

ILI

input leakage current

VI = 5.5 V or GND; note 2

3.6

−−

±20

µA

IOZ

3-state output

OFF-state current

VI =VIH or VIL;

VO = 5.5 V or GND;

notes 2 and 3

3.6

−−

±20

µA

Ioff

power off leakage

supply

VI or VO = 5.5 V

0.0

−−

±20

µA

ICC

quiescent supply

current

VI =VCC or GND; IO = 0

3.6

−−

40

µA

∆ICC

additional quiescent

supply current per in.

VI =VCC − 0.6 V; IO = 0

2.7 to 3.6

−−

5000

µA

IBH(L)

bus-hold LOW

sustaining current

VI = 0.8 V; notes 4, 5 and 6

3.0

60

−−

µA

IBH(H)

bus-hold HIGH

sustaining current

VI = 2.0 V; notes 4, 5 and 6

3.0

−60

−−

µA

IBH(LO)

bus-hold LOW overdrive

current

notes 4, 5 and 7

3.6

500

−−

µA

IBH(HO)

bus-hold HIGH

overdrive current

notes 4, 5 and 7

3.6

−500

−−

µA

SYMBOL

PARAMETER

TEST CONDITIONS

MIN.

TYP.(1) MAX.

UNIT

OTHER

VCC (V)

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