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Part Number: MC14XXXBD
Description: The MC14521B consists of a chain of 24 flipflops with an input circuit that allows three modes of oper...
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MC14XXXBD
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General Description
MC14XXXBD General Description
The MC14521B consists of a chain of 24 flipflops with an input circuit that allows three modes of operation. The input will function as a crystal oscillator, an RC oscillator, or as an input buffer for an external oscillator.
Each flipflop divides the frequency of the previous flipflop by two,consequently this part will count up to 224 = 16,777,216. The count advances on the negative going edge of the clock. The outputs of the last sevenstages are available for added flexibility.
• All Stages are Resettable
• Reset Disables the RC Oscillator for Low Standby Power Drain
• RC and Crystal Oscillator Outputs Are Capable of Driving External Loads
• Test Mode to Reduce Test Time
• VDD4 and VSS4 Pins Brought Out on Crystal Oscillator Inverter to Allow the Connection of External Resistors for LowPower Operation
• Supply Voltage Range = 3.0 Vdc to 18 Vdc
• Capable of Driving Two Lowpower TTL Loads or One Lowpower Schottky TTL Load over the Rated Temperature Range.
MC14XXXBD Maximum Ratings
|
Symbol |
Parameter |
Value |
Unit |
|
VDD |
DC Supply Voltage |
0.5 to + 18.0 |
V |
|
Vin,Vout |
Input or Output Voltage(DC or Transient) |
0.5 to VDD+ 0.5 |
V |
|
Iin,Iout |
Input or Output Current (DC or Transient), per Pin |
±10 |
mA |
|
PD |
Power Dissipation, per Package** |
500 |
mW |
|
Tstg |
Storage Temperature |
65 to + 150 |
|
|
TL |
Lead Temperature (8Second Soldering) |
260 |
**Temperature Derating:
Plastic "P and D/DW" Packages: 7.0 mW/ From 65 To 125
Ceramic "L" Packages: 12 mW/ From 100 To 125
MC14XXXBD Connection Diagram
MC14XXXBD
PDF/DataSheet Download
- Datasheet: MC14XXXBD
- File Size: 228704 KB
- Manufacturer: MOTOROLA [Motorola, Inc]
- Click here to Download
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