Philips Semiconductors
2.5V/3.3V 18-bit universal bus transceiver (3-State)
Product specification
74ALVT16501
AC CHARACTERISTICS (2.5V "0.2V RANGE)
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
An to Bn or Bn to An
2
tPLH
Propagation delay Clock Low or High
tPHL
LEAB to Bn or LEBA to An
3
tPLH
Propagation delay
tPHL
CPAB to Bn or CPBA to An
1
tPZH
Output enable time
5
tPZL
to High and Low level
6
tPHZ
Output disable time
5
tPLZ
from High and Low Level
6
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
LIMITS
VCC = 2.5V "0.2V
MIN
TYP1
MAX
150
1.0
1.9
3.0
1.0
2.5
3.8
2.0
3.0
4.5
2.0
3.5
5.4
1.0
2.9
4.9
1.0
3.7
5.7
1.5
3.1
4.5
1.5
2.1
2.9
1.5
3.0
4.2
1.5
2.4
3.6
AC SETUP REQUIREMENTS (2.5V "0.2V RANGE)
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
An to CPAB or Bn to CPBA
4
th(H)
th(L)
Hold time, High or Low
An to CPAB or Bn to CPBA
4
tS(H)
tS(L)
Setup time, High or Low
An to LEAB or Bn to LEBA
4
th(H)
th(L)
Hold time, High or Low
An to LEAB or Bn to LEBA
4
tW(H)
tW(L)
Pulse width, High or Low
CPAB or CPBA
1
tW(H)
LEAB or LEBA pulse width, High
3
LIMITS
VCC = 2.5V "0.2V
MIN
TYP
1.9
0.4
2.5
1.2
0
–1.2
1.0
–0.4
0
–1.0
1.0
–0.5
1.0
–0.5
2.0
1.0
3.0
3.0
1.5
UNIT
MHz
ns
ns
ns
ns
ns
UNIT
ns
ns
ns
ns
ns
ns
1998 Feb 13
10