N74F827DB Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
N74F827DB Datasheet PDF : 12 Pages
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Philips Semiconductors
Buffers
Product specification
74F827, 74F828
AC CHARACTERISTICS
for 10 Outputs switching with CL = 300pF and RL = 500Ω load
SYMBOL
PARAMETER
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
Propagation delay
Dn to Qn
Output enable time
OEn to Qn
Output disable time
OEn to Qn
Propagation delay
Dn to Qn
Output enable time
OEn to Qn
Output disable time
OEn to Qn
AC WAVEFORMS
For all waveforms, VM = 1.5V
74F827
74F828
Waveform 1
Waveform 3
Waveform 4
Waveform 3
Waveform 4
Waveform 2
Waveform 3
Waveform 4
Waveform 3
Waveform 4
LIMITS
Tamb = +25°C
VCC = 5V
CL = 50pF
RL = 500Ω
Tamb = 0 °C to +70°C
VCC = 5V "10%
CL = 50pF
RL = 500Ω
MIN
Typ
Max
MIN
Max
12.0
16.0
17.0
14.0
17.0
18.0
15.0
20.0
21.0
17.0
21.0
21.5
15.0
19.0
20.0
12.5
15.5
16.0
10.0
17.0
18.0
10.0
13.5
14.0
18.0
21.0
23.0
15.0
18.0
19.0
16.5
19.5
22.5
11.5
14.5
15.0
UNIT
ns
ns
ns
ns
ns
ns
Dn
VM
VM
tPLH
tPHL
Qn
VM
VM
SF00125
Waveform 1. Propagation Delay for Non-Inverting Output
Dn
VM
VM
tPHL
tPLH
Qn
VM
VM
SF00282
Waveform 2. Propagation Delay for Inverting Output
OEn
Qn, Qn
VM
tPZH
VM
tPHZ
VM
VOH -0.3V
0V
SF00263
Waveform 3. 3-State Output Enable Time to High Level
and Output Disable Time from High Level
OEn
Qn, Qn
VM
tPZL
VM
tPLZ
VM
VOL +0.3V
SF00264
Waveform 4. 3-State Output Enable Time to Low Level
and Output Disable Time from Low Level
1994 Dec 05
7
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