PI74LVC4245AS datasheet(4/9 Pages) PERICOM

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PI74LVC4245A

8-Bit Dual Supply Bus Transceiver

with 3-State Outputs

P-0.2

08/11/03

ADVANCE INFORMATION

DC Electrical Characteristics (Over Supply Voltage and Operating Temperature Ranges, unless otherwise specified)

B-Port (3.3V)

Notes:

5. All typical values are measured at VCCB = 3.3V, TA = 25°C

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

7. This is the increase in supply current for each input that is at one of the specified voltage levels, rather than 0V or the associated VCC.

Parameters Description

Test Conditions

VCCA

VCCB

Min.

Typ. Max. Units

VOH

Minimum High

Level Output Volt-

age

IOH = –100µA

4.5V to 5.5V

2.7V to 3.6V

VCC

–0.1

IOH = –12mA

4.5V to 5.5V

2.7V

2.2

2.56

4.5V to 5.5V

2.4

2.85

IOH = –24mA

4.5V to 5.5V

2.70

VOL

Maximum Low

Level Output Volt-

age

IOL = 100µA

4.5V to 5.5V

2.7V to 3.6V

0.1

IOL = 12mA

4.5V to 5.5V

2.7V

0.09

0.4

IOL = 24mA

4.5V to 5.5V

0.18

0.5

IOZ(6)

Maximum 3-State

Output Leakage

Current (B port)

VO = VCCB or GND

4.5V to 5.5V

3.6V

±5

µA

ICCB

Quiescent VCCB

Supply Current

VI = VCCB or GND,

IO = 0

4.5V to 5.5V

3.6V

∆ICCB(7)

ICCB per input

One Input at VCCB

–0.6V, other inputs

at VCCB or GND

4.5V to 5.5V

2.7V to 3.6V

CIO

Input/Output Ca-

pacitance (B port)

VO = VCCB or GND

4.5V to 5.5V

3.3V

9.7

Capacitance (VCCA = 4.5V to 5.5V, VCCB = 2.7V to 3.6V, TA = 25°C)

Notes:

7. CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (ICCD) at no

output loading and operating at 50% duty cycle, CPD is related to ICCD dynamic operating current by the expression:

ICCD = (CPD)(VCC)(fIN) +(ICC static)

Parameters

Description

Test Conditions

Typ.

Units

CPD

Power Dissipation Capaci-

tance (7)

Outputs Enabled

CL = 0pF, f = 10 MHz

Outputs Disabled

2.3

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