74LVT_LVTH244B_3 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet Rev. 03 — 3 March 2006 5 of 15
Philips Semiconductors
74LVT244B; 74LVTH244B
3.3 V octal buffer/line driver; 3-state
8. Limiting values
[1] The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings
are observed.
[2] The performance capability of a high-performance integrated circuit in conjunction with its thermal
environment can create junction temperatures which are detrimental to reliability.
9. Recommended operating conditions
Table 5. 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 +4.6 V
V
I
input voltage
[1]
−0.5 +7.0 V
V
O
output voltage output in OFF-state or
HIGH-state
[1]
−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 output in LOW-state - 128 mA
output in HIGH-state - −64 mA
T
stg
storage temperature −65 +150 °C
T
j
junction temperature
[2]
- 150 °C
Table 6. Recommended operating conditions
Symbol Parameter Conditions Min Typ Max Unit
V
CC
supply voltage 2.7 - 3.6 V
V
I
input voltage 0 - 5.5 V
V
IH
HIGH-state input voltage 2.0 - - V
V
IL
LOW-state input voltage - - 0.8 V
I
OH
HIGH-state output current - - −32 mA
I
OL
LOW-state output current none - - 32 mA
current duty cycle ≤ 50 %;
f
i
≥ 1 kHz
--64mA
T
amb
ambient temperature in free-air −40 - +85 °C
∆t/∆V input transition rise and
fall rate
outputs enabled - - 10 ns/V
