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| 74F776 Datasheet, PDF (8/12 Pages) NXP Semiconductors – Pi-bus transceiver | |||
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Philips Semiconductors
Piâbus transceiver
Product specification
74F776
AC ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
TEST
CONDITION
tPLH
Propagation delay
tPHL
Bn to An
Waveform 1
tPZH
tPZL
Output enable time to high
or low, OEA to An
Waveform 3, 4
tPHZ
tPLZ
Output disable time from
high or low, OEA to An
Waveform 3, 4
SYMBOL
PARAMETER
TEST
CONDITION
tPLH
Propagation delay
tPHL
An to Bn
Waveform 1
tPLH
Propagation delay
tPHL
LE to Bn
Waveform 1
tPLH
Enable/disable time
tPHL
OEBn to An
Waveform 1
tTLH
Transition time, B port
Test Circuit and
tTHL
1.3V to 1.7V, 1.7V to 1.3V
Waveforms
Tamb = +25°C
VCC = +5.0V
CL = 50pF,
RL = 500â¦
MIN TYP MAX
5.5 8.0 12.0
4.5 6.0 9.0
8.0 10.5 13.5
8.5 11.0 13.5
2.0 3.5 6.0
2.0 4.5 7.0
Tamb = +25°C
VCC = +5.0V
CD = 30pF, RU = 9â¦
MIN TYP MAX
3.0 5.0 7.0
3.0 4.5 7.5
3.5 5.0 8.0
3.5 5.0 8.0
3.0 4.5 7.0
3.5 5.5 9.0
0.5 2.0 4.5
0.5 2.0 4.5
A PORT LIMITS
Tamb = 0°C to
VCC = ++57.00°VC± 10%
CL = 50pF,
RL = 500â¦
MIN
MAX
5.5
12.0
4.5
9.0
7.5
15.0
8.0
15.5
1.5
6.5
2.0
7.5
B PORT LIMITS
Tamb = 0°C to
+70°C
VCC = +5.0V ± 10%
CD = 30pF, RU = 9â¦
MIN
MAX
2.5
8.0
2.5
8.5
3.0
9.0
2.5
9.0
2.5
8.0
3.5
10.0
0.5
5.0
0.5
4.5
Tamb = â40°C to +85°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500â¦
MIN
MAX
UNIT
5.5
4.5
12.0
9.0
ns
7.5
8.0
15.5
15.5
ns
1.5
2.0
6.5
7.5
ns
Tamb = â40°C to +85°C
VCC = +5.0V ± 10%
CD = 30pF, RU = 9â¦
MIN
MAX
2.0
9.0
2.5
8.5
2.5
9.5
2.5
9.5
2.5
8.5
3.5
10.5
0.5
5.0
0.5
4.5
UNIT
ns
ns
ns
ns
AC SETUP REQUIREMENTS
SYMBOL
PARAMETER
tsu (H)
tsu (L)
th(H)
th (L)
tw (L)
Setup time, high or low
An to LE
Hold time, high or low
An to LE
LE pulse width, low
TEST
CONDITION
Waveform 2
Waveform 2
Waveform 2
Tamb = +25°C
VCC = +5.0V
CL = 50pF,
RL = 500â¦
MIN TYP MAX
LIMITS
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500â¦
MIN
MAX
Tamb = â40°C to +85°C
VCC = +5.0V ± 10%
CL = 50pF,
RL = 500â¦
MIN
MAX
UNIT
3.5
4.5
4.5
5.0
4.5
5.0
ns
0.0
0.0
0.0
0.0
0.0
0.0
ns
4.0
5.0
5.0
ns
AC WAVEFORMS
An, Bn, OEBn
VM
tPLH
VM
tPHL
An, Bn
VM
VM
SF00427
Waveform 1. Propagation delay for data to output
An
VM
VM
tsu(L)
th(L)
LE
VM
VM
VM
ts(H)
tw(L)
VM
th(H)
VM
SF00428
Waveform 2. Data setup and hold times and LE pulse width
December 19, 1990
8
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