74ALVCH16646 データシートの表示（PDF） - NXP Semiconductors.
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74ALVCH16646 Datasheet PDF : 13 Pages
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Philips Semiconductors
16-bit bus transceiver/register (3-State)
Product specification
74ALVCH16646
AC CHARACTERISTICS FOR VCC = 2.3V TO 2.7V RANGE
GND = 0V; tr = tf ≤ 2.0ns; CL = 30pF
SYMBOL
PARAMETER
WAVEFORM
Propagation delay
nAx to nBx, nBx to nAx
1
tPLH/tPHL
Propagation delay
nCPAB to nBx, nCPBA to nAx
3
Propagation delay
nSAB to nBx, nSBA to nAx
2
tPZH/tPZL
3-State output enable time
nOE to nAx, nBx
4
tPHZ/tPLZ
3-State output disable time
nOE to nAx, nBx
4
tPZH/tPZL
3-State output enable time
nDIR to nAx, nBx
5
tPHZ/tPLZ
3-State output disable time
nDIR to nAx, nBx
5
tW
Pulse width HIGH or LOW
nCPAB, nCPBA
3
tSU
Set up time nAx to nCPAB,
nBx to nCPBA
3
th
Hold time nAx to nCPAB,
nBx to nCPBA
3
Fmax
Maximum clock pulse frequency
3
NOTE:
1. All typical values are at VCC = 2.5V and Tamb = 25°C.
LIMITS
VCC = 2.5V ± 0.2V
MIN
TYP
MAX
1.0
2.7
4.8
1.0
3.4
5.6
1.0
3.4
6.8
1.0
3.3
6.5
1.6
2.8
5.7
1.0
3.4
7.8
1.5
3.0
6.5
3.3
1.2
1.6
0.2
0.6
0.1
150
300
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
MHz
AC CHARACTERISTICS FOR VCC = 3.0V TO 3.6V RANGE AND VCC = 2.7V
GND = 0V; tr = tf = 2.5ns; CL = 50pF
LIMITS
SYMBOL
PARAMETER
WAVEFORM
VCC = 3.3V ± 0.3V
MIN TYP1, 2 MAX
VCC = 2.7V
MIN TYP1 MAX
tPHL/tPLH
Propagation delay
nAx to nBx, nBx to nAx
1
1.0
2.6
3.9
1.0
2.8
4.5
tPHL/tPLH
tPHL/tPLH
Propagation delay
nCPAB to nBx, nCPBA to nAx
Propagation delay
nSAB to nBx, nSBA to nAx
3
1.4
2.9
4.5
1.4
3.1
5.2
2
1.3
3.1
5.3
1.3
3.5
6.4
tPZH/tPZL
3-State output enable time
nOE to nAx, nBx
4
1.0
2.3
5.1
1.0
3.2
6.2
tPHZ/tPLZ
3-State output disable time
nOE to nAx, nBx
4
1.0
2.9
4.7
1.0
3.1
5.0
tPZH/tPZL
3-State output enable time
nDIR to nAx, nBx
5
1.4
3.0
5.1
1.4
3.4
6.2
tPHZ/tPLZ
3-State output disable time
nDIR to nAx, nBx
5
1.4
2.5
5.3
1.4
3.3
6.0
tW
Pulse width HIGH or LOW
nCPAB, nCPBA
tSU
Set up time nAx to nCPAB,
nBx to nCPBA
th
Hold time nAx to nCPAB,
nBx to nCPBA
Fmax
Maximum clock pulse frequency
NOTES:
1. All typical values are at Tamb = 25°C.
2. VCC = 3.3V
3
3.3
0.7
3
1.4
0.3
3
0.7
0.2
3
150
320
3.3
1.0
1.7
0.2
0.4
0.1
150
320
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
1998 Sep 03
7
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