74LVT646PW View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
74LVT646PW Datasheet PDF : 14 Pages
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Philips Semiconductors
3.3V Octal bus transceiver/register (3-State)
Product specification
74LVT646
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500Ω; Tamb = –40°C to +85°C.
SYMBOL
PARAMETER
WAVEFORM
fMAX
Maximum clock frequency
1
tPLH
Propagation delay
tPHL
CPAB to Bn or CPBA to An
1
tPLH
Propagation delay
tPHL
An to Bn or Bn to An
2
tPLH
Propagation delay
2
tPHL
SAB to Bn or SBA to An
3
tPZH
Output enable time
5
tPZL
OE to An or Bn
6
tPHZ
Output disable time
5
tPLZ
OE to An or Bn
6
tPZH
Output enable time
5
tPZL
DIR to An or Bn
6
tPHZ
Output disable time
5
tPLZ
DIR to An or Bn
6
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
LIMITS
VCC = 3.3V ± 0.3V
MIN
TYP1
MAX
150
180
1.8
3.8
5.7
2.1
3.8
5.7
1.3
2.8
4.7
1.0
2.7
4.6
1.4
3.7
6.2
1.4
3.8
6.2
1.0
4.0
5.8
1.0
4.1
6.0
2.3
4.3
6.5
2.2
3.8
5.8
1.0
3.4
6.5
1.2
3.4
6.3
1.7
4.1
7.2
1.5
3.5
5.8
VCC = 2.7V
MAX
6.7
6.4
5.4
5.3
7.2
6.8
7.2
7.3
6.9
5.9
7.5
7.1
8.1
6.3
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
AC SETUP REQUIREMENTS
GND = 0V, tR =2.5ns, tF = 2.5ns, CL = 50pF, RL = 500Ω; Tamb = –40°C to +85°C
SYMBOL
PARAMETER
WAVEFORM
ts(H)
ts(L)
Setup time1
An to CPAB, Bn to CPBA
4
th(H)
th(L)
Hold time1
An to CPAB, Bn to CPBA
4
tw(H)
tw(L)
Pulse width, High or Low
CPAB or CPBA
1
NOTE:
1. This data sheet limit may vary among suppliers.
VCC = 3.3V± 0.3V
Min
Typ
1.5
1.0
2.0
1.0
0.0
–1.0
0.0
–1.0
3.3
1.0
3.3
2.0
LIMITS
VCC = 2.7V
Min
1.6
2.4
0.0
0.0
3.3
3.3
UNIT
ns
ns
ns
1998 Feb 19
7
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