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74LV393PW View Datasheet(PDF) - Philips Electronics

Part NameDescriptionManufacturer
74LV393PW Dual 4-bit binary ripple counter Philips
Philips Electronics Philips
74LV393PW Datasheet PDF : 12 Pages
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Philips Semiconductors
Dual 4-bit binary ripple counter
Product specification
74LV393
AC WAVEFORMS
VM = 1.5V at VCC w 2.7V
VM = 0.5 * VCC at VCC t 2.7V
VOL and VOH are the typical output voltage drop that occur with the
output load.
VCC
1/fmax
nCP INPUT
VM
GND
VOH
tPHL
tPLH
nQn OUTPUT
VM
VOL
SV00678
Figure 1. Clock (nCP) to output (1Qn, 2Qn) propagation delays,
the clock pulse width, and the maximum clock frequency
VCC
nMR INPUT
VM
GND
VCC
tW
trem
nCP INPUT
VM
GND
VOH
tPHL
nQn OUTPUT
VM
VOL
SV00679
Figure 2. Master reset (nMR) pulse width,
the master reset to output (Qn) propagation delays,
and the master reset to clock (nCP) removal time
TEST CIRCUIT
VCC
PULSE
GENERATOR
VI
RT
D.U.T.
VO
50pF
CL
RL = 1k
Test Circuit for switching times
DEFINITIONS
RL = Load resistor
CL = Load capacitance includes jig and probe capacitance
RT = Termination resistance should be equal to ZOUT of pulse generators.
TEST
tPLH/tPHL
VCC
< 2.7V
2.7–3.6V
VI
VCC
2.7V
SV00901
Figure 3. Load circuitry for switching times
1998 Jun 10
7
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