ITT - Index of

ITT5474, ITT7474
DUAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
SWITCHING CHARACTERISTICS. Vee = 5V. TA = 25°e. N = 10
Parameter Min Typ , Max Unit Test Conditions
fmax Maximum clock frequency 15 25 MHz CL = 15 pF. RL = 400 &1
tsetup Minimum input setup time 15 20 ns CL = 15pF.RL =400&1
thold Mihimum input hold time 2 5 ns CL = 15pF.RL =400&1
tpd1 Propagation delay time to logical 25 ns CL = 15pF.RL =400&1
1 level from clear or preset to
output
tpdO Propagation delay time to logical 40 ns CL = 15 pF. RL = 400 &1
o level from clear or preset to
output
tpd1 Propagation delay time to logical 10 14 25 ns CL = 15 pF. RL = 400 &1
1 level from clock to output
tpdO Propagation delay time to logical 10 20 40 ns CL = 15 pF. RL = 400 &1
o level from clock to output
1 All typical values are atVcc = 5V. TA = 25°C.
2 For conditions shown as MIN or MAX. use the appropriate value specified under recommended operating conditions
for the applicable device type.
3 Not more than one output should be shorted at a time.
schematic (each flip-flop)
PRESET ...... _-...... _--4--~-----......
TO OTHER
CLEAR t-+-_--..J
CLOCK~+-+-~-..J
TO OTHER
FLIP·FLOP
NOTE: Component values shown are nomlrw!.
3-101