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74LVCH244ADB,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
74LVC_LVCH244A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 8 — 26 June 2013 3 of 19
NXP Semiconductors
74LVC244A; 74LVCH244A
Octal buffer/line driver; 3-state
Fig 2. IEC logic diagram Fig 3. Functional diagram
12
14
2
4
6
8
18
16
1
EN
mna873
3
5
11
13
15
17
9
7
19
EN
mna875
1A3
1A2
1A1
1A0
2
4
6
8
1
1Y0
1Y1
18
16
14
12
1Y2
1Y3
1OE
2A3
2A2
2A1
2A0
17
15
13
11
19
2Y0
2Y1
3
5
7
9
2Y2
2Y3
2OE
74LVC_LVCH244A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 8 — 26 June 2013 4 of 19
NXP Semiconductors
74LVC244A; 74LVCH244A
Octal buffer/line driver; 3-state
5. Pinning information
5.1 Pinning
5.2 Pin description
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 4. Pin configuration for SO20 and (T)SSOP20 Fig 5. Pin configuration for DHVQFN20 and
DHXQFN20
74LVC244A
74LVCH244A
1OE V
CC
1A0 2OE
2Y0 1Y0
1A1 2A0
2Y1 1Y1
1A2 2A1
2Y2 1Y2
1A3 2A2
2Y3 1Y3
GND 2A3
001aad113
1
2
3
4
5
6
7
8
9
10
12
11
14
13
16
15
18
17
20
19
Table 2. Pin description
Symbol Pin Description
1OE
, 2OE 1, 19 output enable input (active low)
1A0, 1A1, 1A2, 1A3 2, 4, 6, 8 data input
2Y0, 2Y1, 2Y2, 2Y3 3, 5, 7, 9 data output
GND 10 ground (0 V)
2A0, 2A1, 2A2, 2A3 17, 15, 13, 11 data input
1Y0, 1Y1, 1Y2, 1Y3, 18, 16, 14, 12 data output
V
CC
20 supply voltage
74LVC_LVCH244A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 8 — 26 June 2013 5 of 19
NXP Semiconductors
74LVC244A; 74LVCH244A
Octal buffer/line driver; 3-state
6. Functional description
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
[1] The minimum input voltage ratings may be exceeded if the input current ratings are observed.
[2] The output voltage ratings may be exceeded if the output current ratings are observed.
[3] For SO20 packages: above 70 C derate linearly with 8 mW/K.
For (T)SSOP20 packages: above 60 C derate linearly with 5.5 mW/K.
For DHVQFN20 and DHXQFN20 packages: above 60 C derate linearly with 4.5 mW/K.
Table 3. Function table
[1]
Control Input Output
nOE nAn nYn
LLL
LHH
HXZ
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage 0.5 +6.5 V
I
IK
input clamping current V
I
<0V 50 - mA
V
I
input voltage
[1]
0.5 +6.5 V
I
OK
output clamping current V
O
>V
CC
or V
O
<0V - 50 mA
V
O
output voltage output HIGH or LOW
[2]
0.5 V
CC
+0.5 V
output 3-state
[2]
0.5 +6.5 V
I
O
output current V
O
=0V toV
CC
- 50 mA
I
CC
supply current - 100 mA
I
GND
ground current 100 - mA
T
stg
storage temperature 65 +150 C
P
tot
total power dissipation T
amb
= 40 C to +125 C
[3]
-500mW
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

74LVCH244ADB,118

Mfr. #:
Buy 74LVCH244ADB,118
Manufacturer:
Nexperia
Description:
Buffers & Line Drivers 3.3V OCTAL 3-S DRVR
Lifecycle:
New from this manufacturer.
Delivery:
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