參數(shù)資料
型號： 935078930118
廠商： NXP SEMICONDUCTORS
元件分類： 總線收發(fā)器
英文描述： F/FAST SERIES, TRIPLE 1-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PQCC20
封裝： PLASTIC, LCC-20
文件頁數(shù)： 10/12頁
文件大小： 108K
代理商： 935078930118
Philips Semiconductors
Product specification
74F777
Triple bidirectional latched bus transceiver (3–State +
Open Collector)
May 19, 1992
7
AC ELECTRICAL CHARACTERISTICS
A PORT LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
Tamb = +25°C
VCC = +5.0V
CL = 30pF, RL = 9
Tamb = 0°C to +70°C
VCC = +5.0V ±10%
CL = 30pF, RL = 9
Tamb = –40°C to
+85
°C
VCC = +5.0V ±10%
CL = 30pF, RL = 9
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
tPHL
Propagation delay
Bn to An
Waveform 1
8.5
7.5
10.5
9.5
13.0
12.0
8.0
7.5
14.5
12.5
8.0
7.5
14.5
12.5
ns
tPZH
tPZL
Output enable time to
High or Low
OEAn to An
Waveform 3, 4
8.0
9.0
10.0
11.0
13.0
14.0
7.0
8.0
14.5
15.5
7.0
8.0
14.5
15.5
ns
tPHZ
tPLZ
Output Disable time from
High or Low
OEAn to An
Waveform 3, 4
1.5
3.0
6.0
1.0
6.5
6.0
1.0
6.5
6.0
ns
B PORT LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
Tamb = +25°C
VCC = +5.0V
CD= 30pF, RU = 9
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CD = 30pF, RU = 9
Tamb = –40°C to
+85
°C
VCC = +5.0V ±10%
CD= 30pF, RU = 9
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
tPHL
Propagation delay
An to Bn
Waveform 1
3.0
5.0
4.5
6.5
7.0
9.0
2.5
4.5
8.0
10.0
2.5
4.5
8.0
10.0
ns
tPLH
tPHL
Propagation delay
LEn to Bn
Waveform 1
3.5
5.5
7.5
8.0
10.5
3.0
5.0
9.0
11.5
3.0
5.0
9.0
11.5
ns
tPLH
tPHL
Enable/disable time
OEBn to An
Waveform 1
3.0
6.0
5.0
8.0
7.5
10.5
3.0
5.5
8.0
12.0
3.0
5.5
8.0
12.0
ns
tTLH
tTHL
Transition time, B port
1.3V to 1.7V, 1.7V to 1.3V
Test Circuits and
Waveforms
0.5
4.0
2.0
4.5
0.5
7.0
4.5
0.5
7.0
4.5
ns
AC SETUP REQUIREMENTS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
Tamb = +25°C
VCC = +5.0V
CD= 30pF, RU = 9
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
CD = 30pF, RU = 9
Tamb = –40°C to
+85
°C
VCC = +5.0V ±10%
CD= 30pF, RU = 9
UNIT
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tsu (H)
tsu (L)
Setup time
An to LEn
Waveform 2
4.0
4.5
ns
th (H)
th (L)
Hold time
An to LEn
Waveform 2
0.0
ns
tw (L)
LEn pulse width, Low
Waveform 2
5.5
6.5
ns
AC WAVEFORMS
VM
An, Bn
An, Bn, OEBn
tPLH
tPHL
SF00437
Waveform 1. Propagation delay, data to output and
enable/disable time OEBn to Bn
LEn
VM
tsu(L)
tsu(H)
th(L)
th(H)
An
VM
tw(L)
SF00438
Waveform 2. Data set-up and hold times and LE pulse width
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