74ALVC245 Ver la hoja de datos (PDF) - Philips Electronics
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74ALVC245 Datasheet PDF : 13 Pages
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Philips Semiconductors
Octal bus transceiver; 3-state
Product specification
74ALVC245
AC CHARACTERISTICS
SYMBOL
PARAMETER
Tamb = −40 to +85 °C
tPHL/tPLH propagation delay
An to Bn; Bn to An
tPZH/tPZL 3-state output enable time
OE to An; OE to Bn
tPHZ/tPLZ 3-state output disable time
OE to An; OE to Bn
TEST CONDITIONS
WAVEFORMS
VCC (V)
see Figs 4 and 6
see Figs 5 and 6
see Figs 5 and 6
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
Note
1. All typical values are measured at Tamb = 25 °C.
MIN. TYP.(1) MAX.
1.0 2.7
6.0
1.0 2.1
3.5
1.0 3.0
3.6
1.0 2.3
3.4
1.0 4.0
8.6
1.0 3.0
6.0
1.0 2.6
6.3
1.0 2.9
5.5
1.0 4.4
8.0
1.0 2.3
4.8
1.0 3.3
5.3
1.0 3.2
5.5
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC WAVEFORMS
handbook, halfpage VI
An, Bn input
GND
tPLH
VOH
Bn, An output
VOL
VM
VM
VM
tPHL
VM
MNA176
VCC
1.65 to 1.95 V
2.3 to 2.7 V
2.7 V
3.0 to 3.6 V
VM
0.5 × VCC
0.5 × VCC
1.5 V
1.5 V
INPUT
VI
VCC
VCC
2.7 V
2.7 V
tr = tf
≤ 2.0 ns
≤ 2.0 ns
≤ 2.5 ns
≤ 2.5 ns
Fig.4 Input (An, Bn) to output (Bn, An) propagation delay times.
2003 Jul 10
7
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