Datasheet
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 7 of 19
NXP Semiconductors
74LVC244A; 74LVCH244A
Octal buffer/line driver; 3-state
[1] All typical values are measured at V
CC
= 3.3 V (unless stated otherwise) and T
amb
=25C.
[2] The bus hold circuit is switched off when V
I
>V
CC
allowing 5.5 V on the input terminal.
[3] Valid for data inputs of bus hold parts only (74LVCH244A). Note that control inputs do not have a bus hold circuit.
[4] The specified sustaining current at the data input holds the input below the specified V
I
level.
[5] The specified overdrive current at the data input forces the data input to the opposite input state.
I
I
input
leakage
current
V
I
= 5.5 V or GND;
V
CC
=3.6V
[2]
- 0.1 5-20 A
I
OZ
OFF-state
output
current
V
I
=V
IH
or V
IL
;
V
O
= 5.5 V or GND;
V
CC
=3.6V
[2]
- 0.1 5-20 A
I
OFF
power-off
leakage
current
V
I
or V
O
=5.5V; V
CC
= 0.0 V - 0.1 10 - 20 A
I
CC
supply
current
V
I
=V
CC
or GND; I
O
=0A;
V
CC
=3.6V
-0.110 - 40A
I
CC
additional
supply
current
per input pin;
V
I
=V
CC
0.6 V; I
O
=0A;
V
CC
= 2.7 V to 3.6 V
- 5 500 - 5000 A
C
I
input
capacitance
-4.0- - -pF
I
BHL
bus hold
LOW current
V
CC
= 1.65 V; V
I
= 0.58 V
[3][4]
10 - - 10 - A
V
CC
= 2.3 V; V
I
= 0.7 V 30 - - 25 - A
V
CC
= 3.0 V; V
I
= 0.8 V 75 - - 60 - A
I
BHH
bus hold
HIGH
current
V
CC
= 1.65 V; V
I
= 1.07 V
[3][4]
10 - - 10 - A
V
CC
= 2.3 V; V
I
= 1.7 V 30 - - 25 - A
V
CC
= 3.0 V; V
I
= 2.0 V 75 - - 60 - A
I
BHLO
bus hold
LOW
overdrive
current
V
CC
= 1.95 V
[3][5]
200 - - 200 - A
V
CC
= 2.7 V 300 - - 300 - A
V
CC
= 3.6 V 500 - - 500 - A
I
BHHO
bus hold
HIGH
overdrive
current
V
CC
= 1.95 V
[3][5]
200 - - 200 - A
V
CC
= 2.7 V 300 - - 300 - A
V
CC
= 3.6 V 500 - - 500 - A
Table 6. Static characteristics
…continued
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions 40 C to +85 C 40 C to +125 C Unit
Min Typ
[1]
Max Min Max