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PDF 74F393 Data sheet ( Hoja de datos )
| Número de pieza | 74F393 | |
| Descripción | Dual 4-bit binary ripple counter | |
| Fabricantes | Philips | |
| Logotipo |  |
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INTEGRATED CIRCUITS
74F393
Dual 4-bit binary ripple counter
Product specification
IC15 Data Handbook
1988 Nov 01
Philips
Semiconductors
1 page  
Philips Semiconductors
Dual 4-bit binary ripple counter
Product specification
74F393
AC SETUP REQUIREMENTS
SYMBOL
PARAMETER
tW(H)
tW(L)
tW(H)
tREC
CPn Pulse width
High or Low
MR Pulse width
High
Recovery time
MR to CPn
TEST
CONDITION
Waveform 1
Waveform 2
Waveform 2
LIMITS
VCC = +5V
Tamb = +25°C
CL = 50pF, RL = 500Ω
MIN TYP MAX
VCC = +5V ± 10%
Tamb = 0°C to +70°C
CL = 50pF, RL = 500Ω
MIN MAX
4.5 5.0
3.5 4.0
3.5 4.5
2.5 3.0
UNIT
ns
ns
ns
AC WAVEFORMS
For all waveforms, VM = 1.5V.
1/fMAX
CPn
VM
tw(L)
tPHL
tw(H)
VM
tPLH
Qna, Qnb
VM
VM
SF00709
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
MR VM
VM
tw(H)
trec
CPn
tPHL
VM
Qna, Qnb
VM
SF00708
Waveform 2. Master Reset Pulse Width, Master Reset to
Output Delay, and Master Reset to Clock Recovery Time
TEST CIRCUIT AND WAVEFORMS
PULSE
GENERATOR
VIN
VCC
VOUT
D.U.T.
NEGATIVE
PULSE
90%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
90%
AMP (V)
0V
RT CL RL
Test Circuit for Totem-Pole Outputs
POSITIVE
PULSE
10%
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
AMP (V)
10%
0V
DEFINITIONS:
RL = Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
Input Pulse Definition
family
74F
INPUT PULSE REQUIREMENTS
amplitude VM rep. rate
tw tTLH
3.0V 1.5V 1MHz 500ns 2.5ns
tTHL
2.5ns
SF00006
1988 Nov 01
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 74F393.PDF ] | |
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