74LVT573 Просмотр технического описания (PDF) - Philips Electronics
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74LVT573 Datasheet PDF : 12 Pages
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Philips Semiconductors
3.3V Octal D-type transparent latch
(3-State)
Product specification
74LVT573
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω; Tamb = –40°C to +85°C.
SYMBOL
PARAMETER
WAVEFORM
tPLH
Propagation delay
tPHL
Dn to Qn
2
tPLH
Propagation delay
tPHL
E to Qn
1
tPZH
Output enable time
4
tPZL
to High and Low level
5
tPHZ
Output disable time
4
tPLZ
from High and Low level
5
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
LIMITS
VCC = 3.3V ± 0.3V
MIN
TYP1
MAX
1.0
2.5
4.2
1.0
2.7
4.3
1.6
3.5
5.6
2.5
4.3
6.5
1.0
2.8
5.1
1.3
3.3
5.5
2.0
3.7
5.7
1.5
3.0
4.6
VCC = 2.7V
MAX
4.7
5.2
6.3
7.2
6.2
6.6
6.7
5.1
UNIT
ns
ns
ns
ns
AC SETUP REQUIREMENTS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω; Tamb = –40°C to +85°C.
SYMBOL
PARAMETER
WAVEFORM
tS(H)
tS(L)
Setup time, High or Low, Dn to E
3
TH(H)
TH(L)
Hold time, High or Low, Dn to E
3
TW(H)
E pulse width High
1
LIMITS
VCC = 3.3V ± 0.3V
MIN
MAX
0.7
0.7
1.6
1.6
3.3
VCC = 2.7V
MIN
0.6
0.6
1.8
1.8
3.3
UNIT
ns
ns
ns
AC WAVEFORMS
VM = 1.5V, VIN = GND to 2.7V
2.7V
E
1.5V
1.5V
1.5V
tw(H)
tPHL
tPLH
0V
VOH
Qn
1.5V
1.5V
VOL
SV00035
Waveform 1. Propagation Delay, Enable to Output, and Enable
Pulse Width
ÉÉÉ ÉÉÉÉÉÉÉÉÉ Dn
1.5V 1.5V
ÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ts(H)
th(H)
1.5V 1.5V
ts(L)
th(L)
2.7V
0V
2.7V
E
1.5V
1.5V
0V
NOTE: The shaded areas indicate when the input is permitted
to change for predictable output performance.
Waveform 3. Data Setup and Hold Times
SV00118
Dn
1.5V
1.5V
tPLH
tPHL
Qn
1.5V
1.5V
2.7V
0V
VOH
VOL
SV00117
Waveform 2. Propagation Delay for Data to Outputs
1998 Feb 19
6
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