74AHCT245 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
74AHCT245 Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal bus transceiver; 3-state
Product specification
74AHC245; 74AHCT245
SYMBOL PARAMETER
TEST CONDITIONS
WAVEFORMS CL
Tamb (°C)
25
−40 to +85 −40 to +125 UNIT
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VCC = 4.5 to 5.5 V; note 2
tPHL/tPLH
tPZL/tPZH
propagation delay
An to Bn; Bn to An
propagation delay
OE to An;
OE to Bn; signal
name DIR
tPLZ/tPHZ
propagation delay
OE to An;
OE to Bn; signal
name DIR
tPHL/tPLH
tPZL/tPZH
propagation delay
An to Bn; Bn to An
propagation delay
OE to An;
OE to Bn; signal
name DIR
tPLZ/tPHZ
propagation delay
OE to An;
OE to Bn; signal
name DIR
see Figs 4 and 6 15 pF −
see Figs 5 and 6
−
−
see Figs 4 and 6 50 pF −
see Figs 5 and 6
−
−
3.5 5.5 1.0 6.5 1.0 7.0 ns
4.0 8.5 1.0 10.0 1.0 11.0 ns
4.5 7.8 1.0 9.2 1.0 10.0 ns
5.0 7.5 1.0 8.5 1.0 9.5 ns
5.0 10.6 1.0 12.0 1.0 13.5 ns
6.0 9.7 1.0 11.0 1.0 12.5 ns
Notes
1. Typical values at VCC = 3.3 V.
2. Typical values at VCC = 5.0 V.
1999 Sep 28
9
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