N74F2244N 데이터 시트보기 (PDF) - Philips Electronics
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N74F2244N Datasheet PDF : 10 Pages
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Philips Semiconductors
Octal buffer with 30Ω equivalent output termination
(3-State)
Product specification
74F2244
IEC/IEEE SYMBOL
1
EN1
19
EN2
2
2D
1
4
6
8
17
2
15
13
11
FUNCTION TABLE
INPUTS
OEa
Ia
OEb
Ib
L
L
L
L
L
H
L
H
H
X
H
X
Notes to function table
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance ”off” state
18
16
14
12
3
5
7
9
SF00229
OUTPUTS
Ya
Yb
L
L
H
H
Z
Z
LOGIC DIAGRAM
Ia0 2
Ia1 4
Ia2 6
Ia3 8
OEa 1
VCC = Pin 20
GND = Pin 10
18 Ya0
Ib0 17
16 Ya1
Ib1 15
14 Ya2
Ib2 13
12 Ya3
Ib3 11
OEb 10
2 Yb0
5 Yb1
7 Yb2
9 Yb3
SF00236
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the
operating free air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
VCC
VIN
IIN
VOUT
Supply voltage
Input voltage
Input current
Voltage applied to output in high output state
–0.5 to +7.0
V
–0.5 to +7.0
V
–30 to +5
mA
–0.5 to VCC
V
IOUT
Current applied to output in low output state
10
mA
Tamb
Tstg
Operating free air temperature range
Storage temperature range
0 to +70
°C
–65 to +150
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
VCC
VIH
VIL
IIk
IOH
IOL
Tamb
Supply voltage
PARAMETER
PARAMETER
High–level input voltage
Low–level input voltage
Input clamp current
High–level output current
Low–level output current
Operating free air temperature range
1994 Dec 05
3
LIMITS
UNIT
MIN
NOM
MAX
4.5
5.0
5.5
V
2.0
V
0.8
V
–18
mA
–15
mA
5
mA
0
+70
°C
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