74LVT126DB datasheet(6/15 Pages) PHILIPS

Part #	74LVT126DB

Description	3.3 V quad buffer; 3-state

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Manufacturer	PHILIPS [NXP Semiconductors]

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6 / 15 page

9397 750 14553

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 VCC and Tamb = 25 °C.

[2]

Unused pins at VCC 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 VCC between 0 V and 1.2 V with a transition time of up to 10 ms. From VCC = 1.2 V to VCC = 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 VCC or GND.

[6]

This is the increase in supply current for each input at the speciﬁed voltage level other than VCC or GND.

11. Dynamic characteristics

IEX

external current into output

output in HIGH-state when

VO >VCC; VO = 5.5 V and

VCC = 3.0 V

-

60

125

µA

IPU, IPD

power-up or power-down

3-state output current

VCC ≤ 1.2 V; VO = 0.5 V to VCC;

VI = GND or VCC; nOE = don’t care

[4] -

±1

±100

µA

IOZ

3-state output current

VCC = 3.6 V

output HIGH: VO = 3.0 V

-

1

5

µA

output LOW: VO = 0.5 V

-

−1

−5

µA

ICC

quiescent supply current

VCC = 3.6 V; VI = GND or VCC;

IO =0 A

outputs HIGH

-

0.13

0.19

mA

outputs LOW

-

2

7

mA

outputs disabled

[5] -

0.13

0.19

mA

∆ICC

additional supply current

per input pin

VCC = 3 V to 3.6 V; one input at

VCC − 0.6 V and other inputs at

VCC or GND

[6] -

0.1

0.2

mA

CI

input capacitance

VI = 0 V or VCC

-4

-

pF

CO

output capacitance

outputs disabled; VO = 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; tr =tf = 2.5 ns; CL = 50 pF; RL = 500 Ω; for test circuit see Figure 7.

Symbol Parameter

Conditions

Min

Typ

Max

Unit

Tamb = −40 °C to +85 °C [1]

tPLH

propagation delay nA to nY

VCC = 2.7 V

-

4.5

ns

VCC = 3.3 V ± 0.3 V

1.0

2.3

3.8

ns

tPHL

propagation delay nA to nY

VCC = 2.7 V

-

4.4

ns

VCC = 3.3 V ± 0.3 V

1.0

2.4

3.9

ns

tPZH

output enable time nOE to nY

VCC = 2.7 V

-

6.1

ns

VCC = 3.3 V ± 0.3 V

1.0

3.6

5.4

ns

tPZL

output enable time nOE to nY

VCC = 2.7 V

-

5.8

ns

VCC = 3.3 V ± 0.3 V

1.1

3.6

5.2

ns

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