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PI74LPT16952 Datasheet(PDF) 4 Page - Pericom Semiconductor Corporation |
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PI74LPT16952 Datasheet(HTML) 4 Page - Pericom Semiconductor Corporation |
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4 / 5 page  4 PS2076A 02/4/97 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 PI74LPT16952 3.3V 16-BIT REGISTERED TRANSCEIVERS 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 10 µA ∆ICC Quiescent Power Supply Current VCC = Max. VIN = VCC – 0.6V(3) 2.0 30 µA TTL Inputs HIGH ICCD Dynamic Power Supply (4) VCC = Max., VIN = VCC 50 75 µA/ Outputs Open VIN = GND MHz X OE = GND One Bit Toggling 50% Duty Cycle IC Total Power Supply VCC = Max., VIN = VCC – 0.6V 0.6 2.3 mA Current (6) Outputs Open VIN = GND fI = 10 MHZ 50% Duty Cycle X OE = GND One Bit Toggling VCC = Max., VIN = VCC – 0.6V 2.1 4.7 (5) Outputs Open VIN = GND fI = 2.5 MHZ 50% Duty Cycle X OE = GND 16 Bits Toggling Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 3.3V, +25°C ambient. 3. Per TTL driven input; 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 (ICCL, ICCH and ICCZ) ∆ICC = Power Supply Current for a TTL High Input 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 All currents are in milliamps and all frequencies are in megahertz. |
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