74AHC245 データシートの表示（PDF） - Philips Electronics
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74AHC245 Datasheet PDF : 20 Pages
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Philips Semiconductors
Octal bus transceiver; 3-state
Product specification
74AHC245; 74AHCT245
AC CHARACTERISTICS
Type 74AHC245
GND = 0 V; tr = tf ≤ 3.0 ns.
SYMBOL PARAMETER
TEST CONDITIONS
WAVEFORMS CL
Tamb (°C)
25
−40 to +85 −40 to +125 UNIT
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VCC = 3.0 to 3.6 V; note 1
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
−
−
5.0 8.4 1.0 10.0 1.0 10.5 ns
6.5 13.2 1.0 15.5 1.0 16.5 ns
7.5 12.5 1.0 15.5 1.0 16.0 ns
6.5 11.9 1.0 13.5 1.0 15.0 ns
9.0 16.7 1.0 19.0 1.0 21.0 ns
10.0 15.8 1.0 18.0 1.0 20.0 ns
1999 Sep 28
8
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