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74LVT646DB Datasheet(PDF) 8 Page - NXP Semiconductors

Part # 74LVT646DB
Description  3.3V Octal bus transceiver/register 3-State
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVT646DB Datasheet(HTML) 8 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVT646
3.3V Octal bus transceiver/register (3-State)
1998 Feb 19
8
AC WAVEFORMS
VM = 1.5V, VIN = GND to 2.7V
1.5V
1/fMAX
tw(H)
tw(L)
tPHL
tPLH
CPBA or
CPAB
An or Bn
1.5V
1.5V
1.5V
1.5V
2.7V
0V
VOH
VOL
SV00050
Waveform 1. Propagation Delay, Clock Input to Output, Clock
Pulse Width, and Maximum Clock Frequency
VM
VM
SBA or SAB
VM
tPLH
tPHL
VM
An or Bn
2.7V
0V
VOL
VOH
SV00121
Waveform 2. Propagation Delay, SAB to Bn or SBA to An, An
to Bn or Bn to An
tPHL
tPLH
SBA or SAB
An or Bn
1.5V
1.5V
1.5V
1.5V
2.7V
0V
VOH
VOL
SV00122
Waveform 3. Propagation Delay, SBA to An or SAB to Bn
An
or
Bn
CPBA
or
CPAB
ts(H)
th(H)
ts(L)
th(L)
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
2.7V
0V
2.7V
0V
SV00123
NOTE: The shaded areas indicate when the input is permitted
to change for predictable output performance.
Waveform 4. Data Setup and Hold Times
OE, DIR
tPZH
tPHZ
0V
VOH –0.3V
An or Bn
DIR
1.5V
1.5V
1.5V
2.7V
0V
VOH
SV00124
Waveform 5. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
tPZL
tPLZ
VOL +0.3V
OE, DIR
An or Bn
DIR
1.5V
1.5V
1.5V
VOL
2.7V
0V
3V
SV00125
Waveform 6. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level


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