MILITARY AND INDUSTRIAL TEMPERATURE RANGES
4
IDT54/74FCT162245T/AT/CT
FAST CMOS 16-BIT BIDIRECTIONAL TRANSCEIVER
NOTES:
1. For conditions shown as Min. or Max., 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 + ΔICC DHNT + ICCD (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
ΔICC = 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)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit
ΔICC Quiescent Power Supply Current VCC = Max. — 0.5 1.5 mA
TTL Inputs HIGH VIN = 3.4V(3)
ICCD Dynamic Power Supply VCC = Max. VIN = VCC — 60 100 µA/
Current(4) Outputs Open VIN = GND M Hz
xOE = xDIR = GND
One Input Toggling
50% Duty Cycle
ICTotal Power Supply Current(6) VCC = Max. VIN = VCC — 0.6 1.5 mA
Outputs Open VIN = GND
fi = 10MHz
50% Duty Cycle VIN = 3.4V — 0.9 2.3
xOE = xDIR = GND VIN = GND
One Bits Togging
VCC = Max. VIN = VCC — 2.4 4.5(5)
Outputs Open VIN = GND
fi = 2.5MHz
50% Duty Cycle VIN = 3.4V — 6.4 16.5(5
xOE = xDIR = GND VIN = GND
Sixteen Bits Togging
POWER SUPPLY CHARACTERISTICS
54FCT162445T 54/74FCT162245AT 54/74FCT162245CT
Mil. Ind. Mil. Ind. Mil.
Symbol Parameter Condition(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit
tPLH Propagation Delay CL = 50pF 1.5 7.5 1.5 4.6 1.5 4.9 1.5 3.5 1.5 4.5 ns
tPHL A to B, B to A RL = 500Ω
tPZH Output Enable Time 1.5 10 1.5 6.2 1.5 6.5 1.5 4.4 1.5 6.2 ns
tPZL xOE to A or B
tPHZ Output Disable Time 1.5 10 1.5 5 1.5 6 1.5 4 1.5 5.2 ns
tPLZ xOE to A or B
tPZH Output Enable Time 1.5 10 1.5 6.2 1.5 6.5 1.5 4.8 1.5 6.2 ns
tPZL xDIR to A or B(4)
tPHZ Output Disable Time 1.5 10 1.5 5 1.5 6 1.5 4 1.5 5.2 ns
tPLZ xDIR to A or B(4)
tSK(o) Output Skew(3) — 0.5 — 0.5 — 0.5 — 0.5 — 0.5 ns
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
4. This parameter is guaranteed but not tested.