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54F253DMQB 数据表(PDF) 4 Page - Integrated Device Technology |
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54F253DMQB 数据表(HTML) 4 Page - Integrated Device Technology |
4 / 7 page 4 MILITARYANDCOMMERCIALTEMPERATURERANGES IDT54/74FCT245/A/C FASTCMOSOCTALBIDIRECTIONALTRANSCEIVER POWER SUPPLY CHARACTERISTICS VLC = 0.2V; VHC = VCC - 0.2V Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit ICC Quiescent Power Supply Current VCC = Max. VIN ≥ VHC; VIN ≤ VLC —0.5 1.5 mA ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4V(3) —0.5 2 mA ICCD Dynamic Power Supply Current(4) VCC = Max. Outputs Open OE = GND T/ R = GND or VCC One Input Toggling 50% Duty Cycle VIN ≥ VHC VIN ≤ VLC — 0.15 0.25 mA/MHz IC Total Power Supply Current (6) VCC = Max. Outputs Open fi = 10MHz VIN ≥ VHC VIN ≤ VLC (FCT) —2 4 mA 50% Duty Cycle T/ R = OE = GND One Bit Toggling VIN = 3.4V VIN = GND —2.3 5 VCC = Max. Outputs Open fi = 2.5MHz VIN ≥ VHC VIN ≤ VLC (FCT) —3.5 6.5(5) 50% Duty Cycle T/ R = OE = GND Eight Bits Toggling VIN = 3.4V VIN = GND — 5.5 14.5(5) NOTES: 1. For conditions shown as Max. or Min., 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 + ∆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. |
类似零件编号 - 54F253DMQB |
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类似说明 - 54F253DMQB |
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