IDT74FCT543CLB datasheet(4/7 Pages) IDT

Part #	IDT74FCT543CLB

Description	FAST CMOS OCTAL LATCHED TRANSCEIVER

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Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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7.17

4

IDT54/74FCT543/A/C

FAST CMOS OCTAL LATCHED TRANSCEIVER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

POWER SUPPLY CHARACTERISTICS VLC = 0.2V; VHC = VCC – 0.2V

Symbol

Parameter

Test Conditions

(1)

Min.

Typ.

(2)

Max.

Unit

ICC

Quiescent Power

VCC = Max.

—

0.2

1.5

mA

Supply Current

VIN

≥ VHC; VIN ≤ VLC

∆ICC

Quiescent Power Supply

VCC = Max., VIN = 3.4V

(3)

—

0.5

2.0

mA

Current TTL Inputs HIGH

ICCD

Dynamic Power Supply Current

(4)

VCC = Max., Outputs Open

VIN

≥ VHC

—

0.15

0.25

mA/

CEAB and OEAB = GND

VIN

≤ VLC

MHz

CEBA = VCC

One Input Toggling

50% Duty Cycle

IC

Total Power Supply Current

(6)

VCC = Max., Outputs Open

VIN

≥ VHC

—

1.7

4.0

mA

fCP = 10MHz (

LEAB)VIN ≤ VLC

50% Duty Cycle

(FCT)

CEAB and OEAB = GND

CEBA = VCC

One Bit Toggling

VIN = 3.4V

—

2.2

6.0

at fi = 5MHz

VIN = GND

50% Duty Cycle

VCC = Max., Outputs Open

VIN

≥ VHC

—

7.0

12.8

(5)

fCP = 10MHz (

LEAB)VIN ≤ VLC

50% Duty Cycle

(FCT)

CEAB and OEAB = GND

CEBA = VCC

Eight Bits Toggling

VIN = 3.4V

—

9.2

21.8

(5)

at fi = 5MHz

VIN = GND

50% Duty Cycle

NOTES:

2614 tbl 06

1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 5.0V, +25

°C ambient.

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

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

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

6. IC = IQUIESCENT +IINPUTS + IDYNAMIC

IC = ICC +

∆ICC DHNT + ICCD(fCP/2 + fiNi)

ICC = Quiescent Current

∆ICC = 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)

fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)

fi = Input Frequency

Ni = Number of Inputs at fi

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

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