74ABT16841A Просмотр технического описания (PDF) - NXP Semiconductors.
Номер в каталоге
Компоненты Описание
Список матч
74ABT16841A Datasheet PDF : 12 Pages
| |||
Philips Semiconductors
20-bit bus interface latch (3-State)
Product data
74ABT16841A
AC SET-UP REQUIREMENTS
GND = 0 V, tR = tF = 2.5 ns, CL = 50 pF, RL = 500 Ω
SYMBOL
PARAMETER
WAVEFORM
ts(H)
ts(L)
Set-up time, HIGH or LOW
nDx to nLE
3
th(H)
th(L)
Hold time, HIGH or LOW
nDx to nLE
3
tw(H)
nLE pulse width HIGH
1
LIMITS
Tamb = +25 °C
VCC = +5.0 V
Min
Typ
Tamb = –40 °C to +85 °C
VCC = +5.0 V ±0.5 V
Min
Max
2.0
1.0
2.0
–
1.0
0.4
1.0
–
2.0
–0.3
2.0
–
2.0
–0.7
2.0
–
2.9
1.9
2.9
–
UNIT
ns
ns
ns
AC WAVEFORMS
VM = 1.5 V, VIN = GND to 3.0 V
nLE
VM
VM
VM
3.0V or VCC
whichever
is less
tw(H)
tPHL
nQx
VM
tPLH
VM
0V
VOH
VOL
SA00078
Waveform 1. Propagation Delay, Latch Enable Input to Output,
and Enable Pulse Width
nDx INPUT
nQx OUTPUT
VM
tPLH
VM
tPHL
VM
VM
3.0V or VCC
whichever
is less
0V
3.0V or VCC
whichever
is less
0V
SA00079
Waveform 2. Propagation Delay for Data to Outputs
ÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ nDx
VM
VM
VM VM
3.0V or VCC
whichever
is less
0V
ts(H)
th(H)
ts(L)
th(L)
nLE
VM
3.0V or VCC
whichever
VM
is less
0V
NOTE: The shaded areas indicate when the input is
permitted to change for predictable output performance.
SA00080
Waveform 3. Data Set-up and Hold Times
nOE
nQx
VM
tPZH
VM
tPHZ
VM
3.0V or VCC
whichever
is less
0V
VOH
VY
0V
SH00007
Waveform 4. 3-State Output Enable Time to HIGH Level
and Output Disable Time from HIGH Level
nOE
nQx
VM
tPZL
VM
tPLZ
VM
3.0V or VCC
whichever
is less
0V
VX
VOL
3.0V or VCC
0V
SH00008
Waveform 5. 3-State Output Enable Time to LOW Level and
Output Disable Time from LOW Level
2004 Feb 02
6
Share Link: 