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Número de pieza | IN74HC166A | |
Descripción | 8-Bit Parallel-in Serial-Out Shift Register | |
Fabricantes | IK Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de IN74HC166A (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
No Preview Available ! TECHNICAL DATA
IN74HC166A
8-Bit Serial or Parallel-Input/
Serial-Output Shift Register
High-Performance Silicon-Gate CMOS
The IN74HC166A is identical in pinout to the LS/ALS166. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This device is a parallel-in or serial-in, serial-out shift register with
gated clock inputs and an overriding clear input. The shift/load input
establishes the parallel-in or serial-in mode. When high, this input enables
the serial data input and couples the eight flip-flops for serial shifting
with each clock pulse. Synchronous loading occurs on the next clock
pulse when this is low and the parallel data inputs are enabled. Serial data
flow is inhibited during parallel loading. Clocking is done on the low-to-
high level edge of the clock pulse via a two input positive NOR gate,
which permits one input to be used as a clock enable or clock inhibit
function. Clocking is inhibited when either of the clock inputs are held
high, holding either input low enables the other clock input. This will
allow the system clock to be free running and the register stopped on
command with the other clock input. A change from low-to-high on the
clock inhibit input should only be done when the clock input is high. A
buffered direct clear input overrides all other inputs, including the clock,
andsets all flip-flop to zero.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
IN74HC166AN Plastic
IN74HC166AD SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
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PIN 16 =VCC
PIN 8 = GND
1
1 page IN74HC166A
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
Figure 3. Switching Waveforms
Figure 4. Test Circuit
5
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet IN74HC166A.PDF ] |
Número de pieza | Descripción | Fabricantes |
IN74HC166 | 8-Bit Serial or Parallel-Input/ Serial-Output Shift Register High-Performance Silicon-Gate CMOS | ETC |
IN74HC166A | 8-Bit Parallel-in Serial-Out Shift Register | IK Semiconductor |
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