Electronic Components Datasheet Search |
|
74F821 Datasheet(PDF) 2 Page - Fairchild Semiconductor |
|
74F821 Datasheet(HTML) 2 Page - Fairchild Semiconductor |
2 / 6 page www.fairchildsemi.com 2 Unit Loading/Fan Out Functional Description The 74F821 consists of ten D-type edge-triggered flip- flops. This device has 3-STATE true outputs for bus sys- tems organized in a broadside pinning. The buffered Clock (CP) and buffered Output Enable (OE) are common to all flip-flops. The flip-flops will store the state of their individual D inputs that meet the setup and hold times requirements on the LOW-to-HIGH CP transition. With the OE LOW the content of the flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops. Function Table L = LOW Voltage Level H = HIGH Voltage Level X = Immaterial Z = High Impedance = LOW-to-HIGH Transition NC = No Change Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Pin Names Description U.L. Input IIH/IIL HIGH/LOW Output IOH/IOL D0–D9 Data Inputs 1.0/1.0 20 µA/−0.6 mA OE Output Enable 1.0/1.0 20 µA/−0.6 mA 3-STATE Input CP Clock Input 1.0/1.0 20 µA/−0.6 mA O0–O9 3-STATE Outputs 150/40 (33.3) −3.0 mA/24 mA (20 mA) Inputs Internal Output Function OE CP D Q O H H X NC Z Hold H L X NC Z Hold H L H Z Load H H L Z Load L L H L Data Available L H L H Data Available L H X NC NC No Change in Data L L X NC NC No Change in Data |
Similar Part No. - 74F821 |
|
Similar Description - 74F821 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |