Nexperia
74AHCV244A
Octal buffer/line driver; 3-state
74AHCV244A All information provided in this document is subject to legal disclaimers. © Nexperia B.V. 2018. All rights reserved.
Product data sheet Rev. 2 — 21 March 2018
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5.2 Pin description
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
6 Functional description
Table 3. Function table
[1]
Control Input Output
nOE nAn nYn
L L L
L H H
H X Z
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7 Limiting values
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 +7.0 V
V
I
input voltage
[1]
-0.5 +7.0 V
active mode
[2]
[3]
-0.5 V
CC
+ 0.5 VV
O
output voltage
power-down or 3-state mode
[2]
-0.5 +7.0 V
I
IK
input clamping current V
I
< 0 V -50 - mA
I
OK
output clamping current V
O
< 0 V -50 - mA
I
O
output current V
O
= 0 V to V
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
[4]
- 500 mW
[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] This value is limited to 7.0 V maximum.
[4] For TSSOP20 package: above 100 °C the value of P
tot
derates linearly with 10 mW/K.
