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7AHCT245PWDH Schematic ( PDF Datasheet ) - NXP Semiconductors

Teilenummer 7AHCT245PWDH
Beschreibung Octal bus transceiver; 3-state
Hersteller NXP Semiconductors
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Gesamt 20 Seiten
7AHCT245PWDH Datasheet, Funktion
INTEGRATED CIRCUITS
DATA SHEET
74AHC245; 74AHCT245
Octal bus transceiver; 3-state
Product specification
Supersedes data of 1998 Sep 21
File under Integrated Circuits, IC06
1999 Sep 28






7AHCT245PWDH Datasheet, Funktion
Philips Semiconductors
Octal bus transceiver; 3-state
Product specification
74AHC245; 74AHCT245
DC CHARACTERISTICS
74AHC family
Over recommended operating conditions; voltages are referenced to GND (ground = 0 V).
TEST CONDITIONS
Tamb (°C)
SYMBOL PARAMETER
OTHER
25 40 to +85 40 to +125 UNIT
VCC (V)
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VIH HIGH-level input
voltage
2.0 1.5 − − 1.5 1.5 V
3.0 2.1 − − 2.1 2.1
5.5 3.85 − − 3.85 3.85
VIL LOW-level input
voltage
2.0 − − 0.5 0.5 0.5 V
3.0 − − 0.9 0.9 0.9
5.5 − − 1.65 1.65 1.65
VOH
HIGH-level output VI = VIH or VIL; 2.0
1.9 2.0
1.9
1.9
V
voltage; all
IO = 50 µA
3.0 2.9 3.0 2.9 2.9
outputs
4.5 4.4 4.5 4.4 4.4
HIGH-level output VI = VIH or VIL; 3.0 2.58 − − 2.48 2.40 V
voltage
IO = 4.0 mA
VI = VIH or VIL;
4.5
3.94
3.8
3.70
IO = 8.0 mA
VOL
LOW-level output VI = VIH or VIL; 2.0
0
0.1 0.1 0.1 V
voltage; all
IO = 50 µA
3.0 0 0.1 0.1 0.1
outputs
4.5 0 0.1 0.1 0.1
LOW-level output VI = VIH or VIL;
voltage
IO = 4 mA
3.0
−−
0.36 0.44 0.55 V
VI = VIH or VIL;
IO = 8 mA
4.5
−−
0.36 0.44 0.55
II
input leakage
VI = VCC or GND 5.5
−−
0.1 1.0 2.0 µA
current
IOZ
3-state output
VI = VIH or VIL;
5.5
−−
±0.25 − ±2.5 − ±10.0 µA
OFF current
VO = VCC or GND
ICC
quiescent supply VI = VCC or GND; 5.5
−−
4.0 40 80 µA
current
IO = 0
CI input capacitance
3
10 10 10 pF
1999 Sep 28
6

6 Page









7AHCT245PWDH pdf, datenblatt
Philips Semiconductors
Octal bus transceiver; 3-state
Product specification
74AHC245; 74AHCT245
handbook, full pagewidth
PULSE
GENERATOR
VI
VCC
VO
D.U.T.
RT
S1
1000
VCC
open
GND
CL
MNA183
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
open
VCC
GND
Fig.6 Load circuitry for switching times.
1999 Sep 28
12

12 Page





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