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MC14557BCLMOTN/a136avai1-to-64 Bit Variable Length Shift Register
MC14557BCPMOTON/a75avai1-to-64 Bit Variable Length Shift Register
MC14557BCP. |MC14557BCPMOTN/a20avai1-to-64 Bit Variable Length Shift Register
MC14557BDWMOTN/a27avai1-to-64 Bit Variable Length Shift Register


MC14557BCL ,1-to-64 Bit Variable Length Shift RegisterMaximum Ratings are those values beyond which damage to the device may occur.13 L16†Temperature Der ..
MC14557BCP ,1-to-64 Bit Variable Length Shift RegisterMAXIMUM RATINGS* (Voltages Referenced to V )SSSymbol Parameter Value Unit
MC14557BCP. ,1-to-64 Bit Variable Length Shift RegisterMaximum Ratings are those values beyond which damage to the device may occur.13 L16†Temperature Der ..
MC14557BDW ,1-to-64 Bit Variable Length Shift RegisterBLOCK DIAGRAMV DC Supply Voltage – 0.5 to + 18.0 VDDV , V Input or Output Voltage (DC or Transient) ..
MC14557BF ,1-to-64 Bit Variable Length Shift Register3MC14557B(7.)ÎÎÎÎÎ SWITCHING CHARACTERISTICS (C = 50 pF, T = 25* C)L A(8.)Characteristic Symbol V ..
MC14557BFEL ,1-to-64 Bit Variable Length Shift RegisterMaximum Ratings are those values beyond which damage to the deviceMC14557BDWR2 SOIC–16 1000/Tape & ..
MC74AC20DR2 ,Dual 4-Input NAND Gate3MC74AC20, MC74ACT20AC CHARACTERISTICS74ACT 74ACTT = –40°CAT = +25°CV *CC ASymbol Parameter to +85° ..
MC74AC20N ,DUAL 4-INPUT NAND GATEMAXIMUM RATINGS*Symbol Parameter Value UnitV DC Supply Voltage (Referenced to GND) –0.5 to +7.0 VCC ..
MC74AC240DW ,OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTSMaximum ratings are those values beyond which device damage can occur.
MC74AC240M ,Octal Buffer/Line Driver with 3 State OutputsMAXIMUM RATINGS*Symbol Parameter Value UnitV DC Supply Voltage (Referenced to GND) –0.5 to +7.0 VCC ..
MC74AC240MEL ,Octal Buffer/Line Driver with 3-State Outputsboard density.• 3−State Outputs Drive Bus Lines or Buffer Memory AddressPDIP−20RegistersN SUFFIXCAS ..
MC74AC240MEL ,Octal Buffer/Line Driver with 3-State OutputsMAXIMUM RATINGSSymbol Parameter Value UnitV DC Supply Voltage (Referenced to GND) −0.5 to +7.0 VCCV ..


MC14557BCL-MC14557BCP-MC14557BCP.-MC14557BDW
1-to-64 Bit Variable Length Shift Register
--The MC14557B is a static clocked serial shift register whose length may
be programmed to be any number of bits between 1 and 64. The number of
bits selected is equal to the sum of the subscripts of the enabled Length
Control inputs (L1, L2, L4, L8, L16, and L32) plus one. Serial data may be
selected from the A or B data inputs with the A/B select input. This feature is
useful for recirculation purposes. A Clock Enable (CE) input is provided to
allow gating of the clock or negative edge clocking capability.
The device can be effectively used for variable digital delay lines or simply
to implement odd length shift registers. 1–64 Bit Programmable Length Q and Q Serial Buffered Outputs Asynchronous Master Reset All Inputs Buffered No Limit On Clock Rise and Fall Times Supply Voltage Range = 3.0 Vdc to 18 Vdc Capable of Driving Two Low–power TTL Loads or one Low–power
Schottky TTL Load Over the Rated Temperature Range
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Maximum Ratings are those values beyond which damage to the device may occur.
†Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125C
Ceramic “L” Packages: – 12 mW/ C From 100 C To 125C
LENGTH SELECT TRUTH TABLE

NOTE: Length equals the sum of the binary length control
subscripts plus one.
SEMICONDUCTOR TECHNICAL DATA
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