
3
IDT74FCT158T
HIGH-SPEED CMOS QUAD 2-INPUT MULTIPLEXERS
EXTENDEDCOMMERCIALTEMPERATURERANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = -40°C to +85°C, VCC = 5.0V ± 5%
Symbol
Parameter
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level
Guaranteed Logic HIGH Level
2.0
—
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
—
0.8
V
VT
Input Hysteresis
VTLH - VTHL for all inputs
—
0.2
—
V
IIH
Input HIGH Current
VCC = Max.
0
≤ VIN < Vcc
—
5
A
IIL
Input LOW Current
IOS
Short Circuit Current
VCC = Max., VOUT = GND(2,3)
-60
—
mA
VIC
Input Clamp Voltage
VCC = Min., IIN = –18mA, TA = 25
°C(3)
—
–0.7
–1.2
V
VOH
Output HIGH Voltage
VCC = Min.
IOH = -15mA
2.4
—
V
VOL
Output LOW Voltage
VCC = Min.
IOL = 48mA
—
0.5
V
NOTES:
1. Typical values are at VCC = 5.0V, TA = 25°C.
2. Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.
3. This parameter is guaranteed but not tested.
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
Test Conditions(1)
Min.
Max.
Unit
ICC
Quiescent Power Supply Current
VCC = Max.
freq = 0
0V
≤ VIN ≤ 0.2V or
Vcc-0.2V
≤ VIN ≤ Vcc
—1.5
mA
ICC
Supply Current TTL Inputs HIGH
VCC = Max.
VIN = 3.4V(2)
freq = 0(2)
—2.0
mA
QCCD
Supply Current per Input per MHz
VCC = Max.
Outputs Open and Enabled
One Bit Toggling
50% Duty Cycle
Other inputs at GND or Vcc(3,4)
—
0.25
mA/MHz
FCT Link
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TLL driven input (VIN = 3.4V).
3. For flip-flops, QCCD is measured by switching one of the data input pins so that the output changes every clock cycle. This is a measurement of
device power consumption only and does not include power to drive load capacitance or tester capacitance. This parameter is guaranteed by
design but not tested.
4. 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 Output 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.