74F50728 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
74F50728 Datasheet PDF : 12 Pages
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Philips Semiconductors
Synchronizing cascaded dual positive
edge-triggered D-type flip-flop
Product specification
74F50728
AC SETUP REQUIREMENTS
SYMBOL
PARAMETER
tsu (H)
tsu(L)
th (H)
th (L)
tw (H)
tw (L)
tw (L)
trec
Setup time, high or low
Dn to CPn
Hold time, high or low
Dn to CPn
CPn pulse width,
high or low
SDn, RDn pulse width, low
Recovery time
SDn, RDn to CPn
TEST
CONDITION
Waveform 1
Waveform 1
Waveform 2
Waveform 2
Tamb = +25°C
VCC = +5.0V
CL = 50pF,
RL = 500Ω
MIN TYP MAX
1.5
1.5
0.0
0.0
3.0
4.0
4.5
LIMITS
Tamb = 0°C to
+70°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500Ω
MIN
MAX
2.0
2.0
1.5
1.5
3.5
5.0
4.0
Tamb = –40°C to +85°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500Ω
MIN
MAX
2.0
2.0
1.5
1.5
4.0
5.5
4.5
UNIT
ns
ns
ns
ns
Waveform 3 3.5
3.5
3.5
ns
AC WAVEFORMS
Jn, Kn
CPn
Qn
Qn
VM
VM
tsu(L) th(L)
1/fmax
VM
VM
tw(H)
tPLH
VM
tsu(H)
tw(L)
VM
th(H)
VM
tPHL
VM
tPHL
VM
tPLH
VM
VM
SF00139
Waveform 1. Propagation delay for data to output, data setup
time and hold times, and clock width, and
maximum clock frequency
tw(L)
SDn VM
VM
RDn
tPLH
tw(L)
VM
VM
tPHL
Qn
VM
tPHL
VM
tPLH
Qn
VM
VM
SF00050
Waveform 2. Propagation delay for set and reset to output,
set and reset pulse width
Qn, Qn
VM
SDn or RDn
VM
trec
Qn, Qn
tsk(o)
CPn
VM
SF00603
Waveform 4. Output skew
Waveform 3. Recovery time for set or reset to output
NOTES:
For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
VM
SF00590
September 14, 1990
7
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