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74AHC244 Schematic ( PDF Datasheet ) - Philips

Teilenummer 74AHC244
Beschreibung Octal buffer/line driver
Hersteller Philips
Logo Philips Logo 




Gesamt 16 Seiten
74AHC244 Datasheet, Funktion
INTEGRATED CIRCUITS
DATA SHEET
74AHC244; 74AHCT244
Octal buffer/line driver; 3-state
Product specification
Supersedes data of 1999 Feb 24
File under Integrated Circuits, IC06
1999 Sep 28






74AHC244 Datasheet, Funktion
Philips Semiconductors
Octal buffer/line driver; 3-state
Product specification
74AHC244; 74AHCT244
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









74AHC244 pdf, datenblatt
Philips Semiconductors
Octal buffer/line driver; 3-state
Product specification
74AHC244; 74AHCT244
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
y
Z
20
D
c
11
EA
X
HE v M A
pin 1 index
1
e
10
wM
bp
A2
A1
Q
(A3)
A
Lp
L
detail X
θ
0 2.5 5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
mm
1.10
0.15
0.05
0.95
0.80
0.25
0.30
0.19
0.2
0.1
D (1) E (2)
e
6.6
6.4
4.5
4.3
0.65
HE
6.6
6.2
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
IEC
REFERENCES
JEDEC
EIAJ
SOT360-1
MO-153AC
L Lp Q
1.0
0.75
0.50
0.4
0.3
vwy
0.2 0.13 0.1
Z (1)
0.5
0.2
θ
8o
0o
EUROPEAN
PROJECTION
ISSUE DATE
93-06-16
95-02-04
1999 Sep 28
12

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