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MC74AC194

Features: • Typical Shift Frequency of 150 MHz• Asynchronous Master Reset• Hold (Do Nothing) Mode• Fully Synchronous Serial or Parallel Data TransfersThe MC74AC/74ACT194 contains four edge-triggered D flip-flops and the necessary interstage logic to synchronously perform sh...

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MC74AC194: Features: • Typical Shift Frequency of 150 MHz• Asynchronous Master Reset• Hold (Do Nothing) Mode• Fully Synchronous Serial or Parallel Data TransfersThe MC74AC/74ACT194 cont...

MC74AC194 Data Sheet

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Part Number:
MC74AC194
Supply Ability:
5000

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  • 1~5000
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Upload time: 2024/11/27

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Product Details

Description



Features:

• Typical Shift Frequency of 150 MHz
• Asynchronous Master Reset
• Hold (Do Nothing) Mode
• Fully Synchronous Serial or Parallel Data Transfers

The MC74AC/74ACT194 contains four edge-triggered D flip-flops and the necessary interstage logic to synchronously perform shift right, shift left, parallel load and hold operations. Signals applied to the Select (S0, S1) inputs determine the type of operation, as shown in the Mode Select Table. Signals on the Select, Parallel data (P0P3) and Serial data (DSR, DSL) inputs can change when the clock is in either state, provided only that the recommended setup and hold times, with respect to the clock rising edge, are observed. A LOW signal on Master Reset (MR) overrides all other inputs and forces the outputs LOW.


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Value
Unit
VCC
 DC Supply Voltage (Referenced to GND)
0.5 to +7.0
V
Vin
 DC Input Voltage (Referenced to GND)
0.5 to VCC +0.5
V
Vout
 DC Output Voltage (Referenced to GND)
0.5 to VCC +0.5
V
Iin
 DC Input Current, per Pin
±20
mA
Iout
 DC Output Sink/Source Current, per Pin
±50
mA
ICC
 DC VCC or GND Current per Output Pin
±50
mA
Tstg
 Storage Temperature
65 to +150
* Maximum Ratings are those values beyond which damage to the device may occur. Functional operation
  should be restricted to the Recommended Operating Conditions.


Description

The MC74AC194/74ACT194 is a high-speed 4-bit bidirectional universal shift register. As a high-speed multifunctional, sequential building block, MC74AC194 is useful in a wide variety of applications. MC74AC194 may be used in serial-serial, shift left, shift right, serial-parallel, parallel-serial, and parallel-parallel data register transfers. The 'AC/ACT194 is similar in operation to the 'AS195 universal shift register, with added features of shift left without external connections and hold (do nothing) modes of operation.




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