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74F8962 Datasheet, PDF (10/10 Pages) NXP Semiconductors – 9-Bit latched bidirectional Futurebus transceivers open-collector
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Philips Semiconductors FAST Products
9-Bit latched bidirectional Futurebus transceivers
(open-collector)
Product specification
74F8962/8963
AC WAVEFORMS
AIn, Bn,
LEAB, LEBA
OEAB
VM
tPLH
VM
tPHL
AIn, Bn,
LEAB, LEBA
VM
tPHL
VM
tPLH
AOn, Bn
VM
VM
Waveform 1. Propagation delay for data or output enable or
latch enable to output
An, Bn
VM
VM
Waveform 2. Propagation delay for data or latch enable to
output
AIn, Bn
LEAB, LEBA
VM
VM
tsu(L)
th(L)
VM
VM VM
tsu(H)
tw(L)
th(H)
VM
VM
AOn, Bn
AOn, Bn
VM
tsk(o)
VM
Waveform 3. Data setup and hold times and LEAB/LEBA pulse widths
Waveform 4. Output skew
OEAB
VM
VM
OEAB
VM
VM
tPZH
tPHZ
VOH -0.3V
tPZL
tPLZ
An
VM
An
VM
0V
Waveform 5. 3–state output enable time to high level
and output disable time from high level
VOL +0.3V
Waveform 6. 3-state output enable time to low level
and output disable time from low level
NOTES TO AC WAVEFORMS
1. For all waveforms, VM = 1.5V.
2. The shaded areas indicate when the input is permitted to change for predictable output performance.
TEST CIRCUITS AND WAVEFORMS
SWITCH POSITION
TEST SWITCH
tPLZ, tPZL closed
VCC
All other open
VIN
VOUT
RL
PULSE
D.U.T.
GENERATOR
RT
CL RL
Test circuit for 3–state outputs on A port
VCC
7.0V
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
Input pulse definition
90%
AMP (V)
Low V
AMP (V)
10%
Low V
VIN
VOUT
RU
PULSE
D.U.T.
GENERATOR
INPUT PULSE REQUIREMENTS
family
74F amplitude Low V VM rep. rate
tw
tTLH
RT
CD
A port
B port
3.0V
3.0V
0.0V 1.5V
1.0V 1.5V
1MHz
1MHz
500ns 2.5ns
500ns 4.0ns
Test circuit for outputs on B port
DEFINITIONS:
RL =
CL =
RU =
CD =
RT =
Load resistor; see AC electrical characteristics for value.
Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value.
Pull up resistor; see AC electrical characteristics for value.
Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value.
Termination resistance should be equal to ZOUT of pulse generators.
tTHL
2.5ns
4.0ns
March 11, 1993
10