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| PDI1284P11 Datasheet, PDF (9/12 Pages) NXP Semiconductors – 3.3V Parallel interface transceiver/buffer | |||
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Philips Semiconductors
3.3V Parallel interface transceiver/buffer
Product specification
PDI1284P11
TEST CIRCUITS AND WAVEFORMS
VCC
PULSE
GENERATOR
VIN
RT
D.U.T.
VOUT
Test Circuit for Bn or Yn Outputs
50pF
S1
V=2.8V
GND
RL = 500⦠tPLH/PHL
= 62⦠for SR test
SWITCH POSITION
Bn or Yn Outputs
TEST SWITCH
tPLH
tPHL
GND
V=2.8V
VCC
VIN
PULSE
GENERATOR
D.U.T
VOUT
RT
CL
RL
Test Circuit for An Outputs
DEFINITIONS
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RL = Load resistor; see AC CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
tW
VM
10%
VM
10%
tTHL (tf)
tTLH (tr)
90%
VM
90%
VM
tW
VM = 1.5V
Input Pulse Definition
90% AMP (V)
0V
tTHL (tf)
tTLH (tr)
AMP (V)
10%
0V
INPUT PULSE REQUIREMENTS
FAMILY
Amplitude Rep. Rate tW
tr
tf
PDI1284
3.0V
1MHz 500ns 3ns 3ns
Waveform 5.
SV001741
PULSE
VI
GENERATOR
VCC
D.U.T.
RT
VO
CL 50pF
S1
500â¦
2 x VCC
Open
GND
500â¦
VCC
D.U.T.
IO
VCC/2
VCC
t 2.7V
2.7V â 3.6V
VI
VCC
2.7V
Test
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
2 x VCC
GND
SY00003
Figure 1. Load Circuitry for Bn to An Switching Times
IO is measured by forcing VCC/2 on the output. RD can then
be calculated using the equation RD = VCC/2 ť IO ť.
SY00005
Figure 2. Output Impedance RD
1999 Sep 17
9
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