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74AHC244PWDH View Datasheet(PDF) - Philips Electronics

Part Name
Description
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74AHC244PWDH
Philips
Philips Electronics Philips
74AHC244PWDH Datasheet PDF : 16 Pages
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Philips Semiconductors
Octal buffer/line driver; 3-state
Product specification
74AHC244; 74AHCT244
Type 74AHCT244
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 = 4.5 to 5.5 V; note 1
tPHL/tPLH
tPZL/tPZH
tPLZ/tPHZ
tPHL/tPLH
tPZL/tPZH
tPLZ/tPHZ
propagation delay
nAn to nYn
propagation delay
nOE to nYn
propagation delay
nOE to nYn
propagation delay
nAn to nYn
propagation delay
nOE to nYn
propagation delay
nOE to nYn
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 7.4 1.0 8.5 1.0 9.5 ns
3.5 10.4 1.0 12.0 1.0 13.0 ns
5.0 9.4 1.0 10.0 1.0 12.0 ns
5.0 8.4 1.0 9.5 1.0 10.5 ns
5.5 11.4 1.0 13.0 1.0 14.5 ns
7.0 11.4 1.0 13.0 1.0 14.5 ns
Note
1. Typical values at VCC = 5.0 V.
AC WAVEFORMS
handbook, halfpage VI
nAn INPUT
GND
tPLH
VOH
nYn OUTPUT
VOL
VM
VM
VM
tPHL
VM
MNA171
FAMILY
AHC
AHCT
VI INPUT
REQUIREMENTS
GND to VCC
GND to 3.0 V
VM
INPUT
50% VCC
1.5 V
VM
OUTPUT
50% VCC
50% VCC
Fig.4 The input (nAn) to output (nYn) propagation delays.
1999 Sep 28
9
 

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