9397 750 14553 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 04 — 11 February 2005 6 of 15
Philips Semiconductors
74LVT126
3.3 V quad buffer; 3-state
[1] Typical values are measured at nominal V
CC
and T
amb
= 25 °C.
[2] Unused pins at V
CC
or GND.
[3] This is the bus hold overdrive current required to force the input to the opposite logic state.
[4] This parameter is valid for any V
CC
between 0 V and 1.2 V with a transition time of up to 10 ms. From V
CC
= 1.2 V to V
CC
= 3.3 V ± 0.3 V
a transition time of 100 µs is permitted. This parameter is valid for T
amb
=25°C only.
[5] Measured with outputs pulled up to V
CC
or GND.
[6] This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND.
11. Dynamic characteristics
I
EX
external current into output output in HIGH-state when
V
O
>V
CC
; V
O
= 5.5 V and
V
CC
= 3.0 V
- 60 125 µA
I
PU
, I
PD
power-up or power-down
3-state output current
V
CC
≤ 1.2 V; V
O
= 0.5 V to V
CC
;
V
I
= GND or V
CC
; nOE = don’t care
[4]
- ±1 ±100 µA
I
OZ
3-state output current V
CC
= 3.6 V
output HIGH: V
O
= 3.0 V - 1 5 µA
output LOW: V
O
= 0.5 V - −1 −5 µA
I
CC
quiescent supply current V
CC
= 3.6 V; V
I
= GND or V
CC
;
I
O
=0 A
outputs HIGH - 0.13 0.19 mA
outputs LOW - 2 7 mA
outputs disabled
[5]
- 0.13 0.19 mA
∆I
CC
additional supply current
per input pin
V
CC
= 3 V to 3.6 V; one input at
V
CC
− 0.6 V and other inputs at
V
CC
or GND
[6]
- 0.1 0.2 mA
C
I
input capacitance V
I
= 0 V or V
CC
-4-pF
C
O
output capacitance outputs disabled; V
O
= 0 V or 3.0 V - 8 - pF
Table 7: Static characteristics
…continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Typ Max Unit
Table 8: Dynamic characteristics
GND = 0 V; t
r
=t
f
= 2.5 ns; C
L
= 50 pF; R
L
= 500
Ω
; for test circuit see Figure 7.
Symbol Parameter Conditions Min Typ Max Unit
T
amb
= −40 °C to +85 °C
[1]
t
PLH
propagation delay nA to nY V
CC
= 2.7 V - - 4.5 ns
V
CC
= 3.3 V ± 0.3 V 1.0 2.3 3.8 ns
t
PHL
propagation delay nA to nY V
CC
= 2.7 V - - 4.4 ns
V
CC
= 3.3 V ± 0.3 V 1.0 2.4 3.9 ns
t
PZH
output enable time nOE to nY V
CC
= 2.7 V - - 6.1 ns
V
CC
= 3.3 V ± 0.3 V 1.0 3.6 5.4 ns
t
PZL
output enable time nOE to nY V
CC
= 2.7 V - - 5.8 ns
V
CC
= 3.3 V ± 0.3 V 1.1 3.6 5.2 ns
