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74F776 Datasheet(PDF) 8 Page - NXP Semiconductors

Part # 74F776
Description  Pi-bus transceiver
PDF  12 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74F776 Datasheet(HTML) 8 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F776
Pi–bus transceiver
December 19, 1990
8
AC ELECTRICAL CHARACTERISTICS
A PORT LIMITS
Tamb = +25°C
Tamb = 0°C to
+70
°C
Tamb = –40°C to +85°C
SYMBOL
PARAMETER
TEST
VCC = +5.0V
VCC = +5.0V ± 10%
VCC = +5.0V ± 10%
UNIT
CONDITION
CL = 50pF,
RL = 500Ω
CL = 50pF,
RL = 500Ω
CL = 50pF,
RL = 500Ω
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
tPHL
Propagation delay
Bn to An
Waveform 1
5.5
4.5
8.0
6.0
12.0
9.0
5.5
4.5
12.0
9.0
5.5
4.5
12.0
9.0
ns
tPZH
tPZL
Output enable time to high
or low, OEA to An
Waveform 3, 4
8.0
8.5
10.5
11.0
13.5
13.5
7.5
8.0
15.0
15.5
7.5
8.0
15.5
15.5
ns
tPHZ
tPLZ
Output disable time from
high or low, OEA to An
Waveform 3, 4
2.0
2.0
3.5
4.5
6.0
7.0
1.5
2.0
6.5
7.5
1.5
2.0
6.5
7.5
ns
B PORT LIMITS
TEST
Tamb = +25°C
Tamb = 0°C to
+70
°C
Tamb = –40°C to +85°C
SYMBOL
PARAMETER
CONDITION
VCC = +5.0V
VCC = +5.0V ± 10%
VCC = +5.0V ± 10%
UNIT
CD = 30pF, RU = 9Ω
CD = 30pF, RU = 9Ω
CD = 30pF, RU = 9Ω
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
tPHL
Propagation delay
An to Bn
Waveform 1
3.0
3.0
5.0
4.5
7.0
7.5
2.5
2.5
8.0
8.5
2.0
2.5
9.0
8.5
ns
tPLH
tPHL
Propagation delay
LE to Bn
Waveform 1
3.5
3.5
5.0
5.0
8.0
8.0
3.0
2.5
9.0
9.0
2.5
2.5
9.5
9.5
ns
tPLH
tPHL
Enable/disable time
OEBn to An
Waveform 1
3.0
3.5
4.5
5.5
7.0
9.0
2.5
3.5
8.0
10.0
2.5
3.5
8.5
10.5
ns
tTLH
tTHL
Transition time, B port
1.3V to 1.7V, 1.7V to 1.3V
Test Circuit and
Waveforms
0.5
0.5
2.0
2.0
4.5
4.5
0.5
0.5
5.0
4.5
0.5
0.5
5.0
4.5
ns
AC SETUP REQUIREMENTS
LIMITS
TEST
Tamb = +25°C
Tamb = 0°C to +70°C
Tamb = –40°C to +85°C
SYMBOL
PARAMETER
CONDITION
VCC = +5.0V
VCC = +5.0V ± 10%
VCC = +5.0V ± 10%
UNIT
CL = 50pF,
RL = 500Ω
CL = 50pF,
RL = 500Ω
CL = 50pF,
RL = 500Ω
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tsu (H)
tsu (L)
Setup time, high or low
An to LE
Waveform 2
3.5
4.5
4.5
5.0
4.5
5.0
ns
th(H)
th (L)
Hold time, high or low
An to LE
Waveform 2
0.0
0.0
0.0
0.0
0.0
0.0
ns
tw (L)
LE pulse width, low
Waveform 2
4.0
5.0
5.0
ns
AC WAVEFORMS
VM
VM
VM
VM
An, Bn
An, Bn, OEBn
tPLH
tPHL
SF00427
Waveform 1. Propagation delay for data to output
LE
VM
VM
VM
VM
VM
VM
tsu(L)
th(L)
th(H)
An
VM
tw(L)
ts(H)
SF00428
Waveform 2. Data setup and hold times and LE pulse width



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