DatasheetsPDF.com

DM74LS109A

National Semiconductor
Part Number DM74LS109A
Manufacturer National Semiconductor
Description Dual Positive-Edge-Triggered J-K Flip-Flops
Published Apr 1, 2005
Detailed Description 54LS109 DM54LS109A DM74LS109A Dual Positive-Edge-Triggered J-K Flip-Flops with Preset Clear and Complementary Outputs J...
Datasheet PDF File DM74LS109A PDF File

DM74LS109A
DM74LS109A

Overview
54LS109 DM54LS109A DM74LS109A Dual Positive-Edge-Triggered J-K Flip-Flops with Preset Clear and Complementary Outputs June 1989 54LS109 DM54LS109A DM74LS109A Dual Positive-Edge-Triggered J-K Flip-Flops with Preset Clear and Complementary Outputs General Description This device contains two independent positive-edge-triggered J-K flip-flops with complementary outputs The J and K data is accepted by the flip-flop on the rising edge of the clock pulse The triggering occurs at a voltage level and is not directly related to the transition time of the rising edge of the clock The data on the J and K inputs may be changed while the clock is high or low as long as setup and hold times are not violated A low logic level on the preset or clear inputs will set or reset the outputs regardless of the logic levels of the other inputs Features Y Alternate Military Aerospace device (54LS109) is available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagram Dual-In-Line Package TL F 6368 – 1 Order Number 54LS109DMQB 54LS109FMQB DM54LS109AJ DM54LS109AW DM74LS109AM or DM74LS109AN See NS Package Number J16A M16A N16E or W16A Function Table Inputs PR L H L H H H H H CLR H L L H H H H H CLK X X X J X X X L H L H X K X X X L L H H X Outputs Q H L H L Q H e High Logic Level L e Low Logic Level X e Either Low or High Logic Level u u u u L L H H H Toggle Q0 Q0 H L Q0 Q0 u e Rising Edge of Pulse e This configuration is nonstable that is it will not persist when preset and or clear inputs return to their inactive (high) state Q0 e The output logic level of Q before the indicated input conditions were established Toggle e Each output changes to the complement of its previous level on each active transition of the clock pulse C1995 National Semiconductor Corporation TL F 6368 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Of...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)