Philips Semiconductors
2.5V/3.3V 18-bit latched transceiver with 16-bit parity
generator/checker (3-State)
Product specification
74ALVT16899
TEST CIRCUIT AND WAVEFORM
VCC
VIN
PULSE
GENERATOR
VOUT
RX
D.U.T.
RT
CL RL
VX
90%
NEGATIVE
PULSE
Test Circuit for Open Collector Outputs
SWITCH POSITION
TEST
SWITCH
tPLZ/tPZL
tPLH/tPHL
tPHZ/tPZH
6 V or VCC × 2
open
GND
LOAD VALUES
OUTPUT RX
ERROR 100
All other 500
POSITIVE
PULSE
10%
VX
VCC
switch
tW
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
tTLH (tr )
90%
VM
tW
tTHL (tf )
90%
VM
Input Pulse Definition
90%
AMP (V)
0V
AMP (V)
10%
0V
DEFINITIONS:
RL = Load resistor; see AC CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
FAMILY
74ALVT16
INPUT PULSE REQUIREMENTS
Amplitude
3.0V or VCC,
which ever is
less
Rep. Rate
≤ 10MHz
tw
tR
tF
500ns ≤ 2.5ns ≤ 2.5ns
SV01732
1998 Jun 30
16