CY5474FCT273T Datasheet, PDF (3/7 Pages) Texas Instruments – 8-Bit Register

CY54/74FCT273T
Power Supply Characteristics
Parameter
Description
Test Conditions
I_CC
∆I_CC
Quiescent Power Supply Current V_CC=Max., V_IN ≤ 0.2V, V_IN ≥ V_CC-0.2V
Quiescent Power Supply Current V_CC=Max., V_IN=3.4V, f₁=0, Outputs Open ^[8]
(TTL inputs HIGH)
I_CCD
I_C
Dynamic Power Supply Current^[9]
Total Power Supply Current^[10]
V_CC=Max., One Bit Toggling, 50% Duty Cycle,
Outputs Open, MR=V_CC,
V_IN ≤ 0.2V or V_IN ≥ V_CC-0.2V
V_CC=Max., f₀=10 MHz, 50% Duty Cycle,
Outputs Open, One Bit Toggling at f₁=5 MHz,
MR=V_CC, V_IN ≤ 0.2V or V_IN ≥ V_CC-0.2V
V_CC=Max., f₀=10 MHz, 50% Duty Cycle,
Outputs Open, One Bit Toggling at f₁=5 MHz,
MR=V_CC, V_IN=3.4V or V_IN=GND
V_CC=Max., f₀=10 MHz, 50% Duty Cycle,
Outputs Open, Eight Bits Toggling
at f₁=2.5MHz, MR=V_CC,
V_IN ≤ 0.2V or V_IN ≥ V_CC-0.2V
V_CC=Max., f₀=10 MHz, 50% Duty Cycle,
Outputs Open, Eight Bits Toggling
at f₁=2.5 MHz, MR=V_CC,
V_IN=3.4V or V_IN=GND
Notes:
8. Per TTL driven input (V_IN=3.4V); all other inputs at V_CC or GND.
9. This parameter is not directly testable, but is derived for use in Total Power Supply calculations.
10. I_C = I_QUIESCENT + I_INPUTS + I_DYNAMIC
I_C = I_CC+∆I_CCD_HN_T+I_CCD(f₀/2 + f₁N₁)
I_CC = Quiescent Current with CMOS input levels
∆I_CC= Power Supply Current for a TTL HIGH input (V_IN=3.4V)
D_H = Duty Cycle for TTL inputs HIGH
N_T = Number of TTL inputs at D_H
I_CCD = Dynamic Current caused by an input transition pair (HLH or LHL)
f₀ = Clock frequency for registered devices, otherwise zero
f₁ = Input signal frequency
N₁ = Number of inputs changing at f₁
All currents are in milliamps and all frequencies are in megahertz.
11. Values for these conditions are examples of the I_CC formula. These limits are specified but not tested.
Typ.^[5]
0.1
0.5
Max.
0.2
2.0
0.06 0.12
0.7
1.4
1.2
3.4
1.6 3.2^[11]
3.9 12.2^[11]
Unit
mA
mA
mA/MHz
mA
mA
mA
mA
3