PI74FCT16541/162541/162H541T
16-BIT BUFFER/LINE DRIVERS
Power Supply Characteristics
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND or VCC
0.1
0.5
60
500
µA
∆ICC
ICCD
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
1.5
mA
Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
XOE = GND
VIN = VCC
VIN = GND
100
µA/
MHz
One Bit Toggling
50% Duty Cycle
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
fI = 10 MHZ
VIN = VCC
VIN = GND
0.6
1.5(5)
mA
50% Duty Cycle
XOE = GND
One Bit Toggling
VIN = 3.4V
VIN = GND
0.9
2.4
2.3(5)
4.5(5)
VCC = Max.,
Outputs Open
fI = 2.5 MHZ
50% Duty Cycle
XOE = GND
VIN = VCC
VIN = GND
16 Bits Toggling
VIN = 3.4V
VIN = GND
6.4
16.5(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)
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
PS2037A 03/11/96
233
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
