IDT74FCT652TP datasheet(6/9 Pages) IDT

6 / 9 page

6.20

IDT54/74FCT646/2646/652/2652T/AT/CT/DT, 648T/AT/CT

FAST CMOS OCTAL TRANSCEIVER/REGISTER

MILITARY AND COMMERCIAL TEMPERATURE RANGES

OUTPUT DRIVE CHARACTERISTICS FOR FCT2646T/2652T

2634 lnk 07

NOTES:

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. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.

4. The test limit for this parameter is

±5µA at TA = –55°C.

5. This parameter is guaranteed but not tested.

POWER SUPPLY CHARACTERISTICS

2634 tbl 08

NOTES:

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.

Symbol

Parameter

Test Conditions(1)

Min.

Typ.(2)

Max.

Unit

IODL

Output LOW Current

VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3)

—

IODH

Output HIGH Current

VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3)

–16

–48

—

VOH

Output HIGH Voltage

VCC = Min.

VIN = VIH or VIL

IOH = –12mA MIL.

IOH = –15mA COM'L.

2.4

3.3

—

VOL

Output LOW Voltage

VCC = Min.

VIN = VIH or VIL

IOL = 12mA

—

0.3

0.50

Symbol

Parameter

Test Conditions(1)

Min.

Typ.(2)

Max.

Unit

∆ICC

Quiescent Power Supply Current

TTL Inputs HIGH

VCC = Max.

VIN = 3.4V(3)

—

0.5

2.0

ICCD

Dynamic Power Supply Current(4)

VCC = Max.

Outputs Open

GAB =

GBA = GND or

VIN = VCC

VIN = GND

FCTxxxT

—

0.15

0.25

mA/

MHz

G = DIR = GND

One Input Toggling

50% Duty Cycle

FCT2xxxT

—

0.06

0.12

Total Power Supply Current(6)

VCC = Max.

Outputs Open

VIN = VCC

VIN = GND

FCTxxxT

—

1.5

3.5

fCP = 10MHz

50% Duty Cycle

FCT2xxxT

—

0.6

2.2

GAB =

GBA = GND or

G = DIR = GND

VIN = 3.4

VIN = GND

FCTxxxT

—

2.0

5.5

One Bit Toggling

at fi = 5MHz

50% Duty Cycle

FCT2xxxT

1.1

4.2

VCC = Max.

Outputs Open

VIN = VCC

VIN = GND

FCTxxxT

—

3.8

7.3(5)

fCP = 10MHz

50% Duty Cycle

FCT2xxxT

—

1.5

4.0(5)

GAB =

GBA = GND or

G = DIR = GND

VIN = 3.4

VIN = GND

FCTxxxT

—

6.0

16.3(5)

Eight Bits Toggling

at fi = 2.5MHz

50% Duty Cycle

FCT2xxxT

—

3.8

13.0(5)

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