MC14557BFL1 ,1-to-64 Bit Variable Length Shift RegisterELECTRICAL CHARACTERISTICS (Voltages Referenced to V )SSÎÎÎÎÎ – 55* C 25* C 125* CV VDD DD(4.)VdcCh ..
MC145583VF ,3.3 Volt Only Driver/Receiver with an Integrated Standby ModeMAXIMUM RATINGS (Voltage polarities referenced to GND)This device contains protection circuitry toR ..
MC145583VF. ,3.3 Volt Only Driver/Receiver with an Integrated Standby Modeelectrical specifications of EIA–232–E, EIA–562, andORDERING INFORMATIONCCITT V.28 while operating ..
MC14558BCP ,BCD-to-Seven Segment DecoderMaximum Ratings are those values beyond which damage to the device may occur.V 8 9 e†Temperature De ..
MC14558BD ,BCD-to-Seven Segment DecoderMAXIMUM RATINGS* (Voltages referenced to V )SSPIN ASSIGNMENT Rating Symbol Value UnitB 1 16 VDDDC S ..
MC14559B ,Successive Approximation Registers3MC14549B, MC14559B(6.)ÎÎÎÎÎ SWITCHING CHARACTERISTICS (C = 50 pF, T = 25C)L AÎÎÎÎÎ Characteristi ..
MC74AC240N ,OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS* ** ** OCTAL BUFFER/LINEDRIVER WITH* * ** *3-STATE OUTPUTSThe MC74AC240/74ACT240 is an octal buf ..
MC74AC240N ,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 ..
MC74AC241N ,OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS* ** ** OCTAL BUFFER/LINEDRIVER WITH* * ** *3-STATE OUTPUTSThe MC74AC241/74ACT241 is an octal buf ..
MC74AC241N ,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 ..
MC74AC244 ,Octal Buffer/Line Driver with 3 State Outputs3MC74AC244, MC74ACT244AC CHARACTERISTICS (For Figures and Waveforms – See Section 3) 74AC 74ACT = ..
MC74AC244 ,Octal Buffer/Line Driver with 3 State Outputs2MC74AC244, MC74ACT244DC CHARACTERISTICS 74AC 74ACT =AVCCSymbol Parameter T = +25°C –40°C to Unit ..
MC14557BFL1
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
MAXIMUM RATINGS (Voltages Referenced to VSS) (Note 2.) 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
This device contains protection circuitry to guard against damage due to high
static voltages or electric fields. However, precautions must be taken to avoid
applications of any voltage higher than maximum rated voltages to this
high–impedance circuit. For proper operation, Vin and Vout should be constrained
to the range VSS (Vin or Vout) VDD.
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,
either VSS or VDD). Unused outputs must be left open.
