PI74FCT139TQ Ver la hoja de datos (PDF) - Pericom Semiconductor
Número de pieza
componentes Descripción
Fabricante
PI74FCT139TQ Datasheet PDF : 5 Pages
| |||
PI74FCT139/239T
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678D90U123A45L67819-0O123F45-6478D90E12C123O45D67E89R012
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ(2) Max.
ICC
Quiescent Power
Supply Current
∆ICC
Supply Current per
Input @ TTL HIGH
VCC = Max.
VCC = Max.
VIN = GND
or VCC
VIN = 3.4V(3)
0.1 500
0.5 2.0
ICCD
Supply Current per
Input per MHz(4)
VCC = Max.
Outputs Open
One Input Toggling
50% Duty Cycle
VIN = VCC
VIN = GND
0.15 0.3
IC
Total Power Supply
Current(6)
VCC = Max.
Outputs Open
fCP = 10 MHZ
50% Duty Cycle
One Bit toggling
VCC = Max., Outputs Open
fCP = 10 MHZ
50% Duty Cycle
One Bit toggling
on Each Decoder
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
1.5 4.0
1.8 5.0
3.0 7.5(5)
3.7 9.5(5)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
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)
fo = Output Frequency
No = Number of Outputs at fo
All currents are in milliamps and all frequencies are in megahertz.
Units
µA
mA
mA/
MHz
mA
4
PS2006B 11/11/97
Share Link: 