7LVC827APWDH datasheet(6/12 Pages) PHILIPS

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Philips Semiconductors

Product specification

74LVC827A

10-bit buffer/line driver with 5-volt tolerant

inputs/outputs (3-State)

1998 Sep 04

DC ELECTRICAL CHARACTERISTICS

(Continued)

Over recommended operating conditions voltages are referenced to GND (ground = 0V)

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

Temp = -40

°C to +85°C

UNIT

MIN

TYP1

MAX

Input leakage current

VCC =3 6V; V = 5 5V or GND

Not for I/O pins

"01

µA

Input leakage current

VCC = 3.6V; VI = 5.5V or GND

Not for I/O pins

"0.1

µA

IOZ

3-State output OFF-state current

VCC = 3.6V; VI = VIH or VIL;VO = 5.5V or GND

0.1

µA

Ioff

Power off leakage supply

VCC = 0.0V; VI or VO = 5.5V

0.1

"10

µA

ICC

Quiescent supply current

VCC = 3.6V; VI = VCC or GND; IO = 0

0.1

µA

∆ICC

Additional quiescent supply current

per input pin

VCC = 2.7V to 3.6V; VI = VCC –0.6V; IO = 0

500

µA

NOTES:

1. All typical values are at VCC = 3.3V and Tamb = 25°C.

2. The specified overdrive current at the data input forces the data input to the opposite logic input state.

AC CHARACTERISTICS

GND = 0V; tr = tf v 2.5ns; CL = 50pF; RL = 500Ω; Tamb = –40°C to +85°C.

LIMITS

SYMBOL

PARAMETER

WAVEFORM

VCC = 3.3V ±0.3V

VCC = 2.7V

VCC = 1.2V

UNIT

MIN

TYP1

MAX

MIN

MAX

TYP

tPHL

tPLH

Propagation delay

1An to 1Yn;

2An to 2Yn

Figures 1, 3

1.5

4.0

6.7

1.5

7.1

tPZH

tPZL

3-State output enable time

OE1 to 1Yn;

OE2 to 2Yn

Figures 2, 3

1.5

5.4

8.5

1.5

9.5

tPHZ

tPLZ

3-State output disable time

OE1 to 1Yn;

OE2 to 2Yn

Figures 2, 3

1.5

4.0

6.7

1.5

7.3

NOTE:

1. Unless otherwise stated, all typical values are at VCC = 3.3V and Tamb = 25°C.

AC WAVEFORMS

VM = 1.5V at VCC w 2.7V; VM = 0.5 VCC at VCC t 2.7V.

VOL and VOH are the typical output voltage drop that occur with the

output load.

VX = VOL + 0.3V at VCC w 2.7V; VX = VOL + 0.1 VCC at VCC t 2.7V

VY = VOH –0.3V at VCC w 2.7V; VY = VOH – 0.1 VCC at VCC t 2.7V

V M

An INPUT

Yn OUTPUT

V M

t PLH

t PHL

GND

V I

V OL

V OH

SA00431

Figure 1. The input (An) to output (Yn) propagation delays.

outputs

disabled

outputs

enabled

outputs

enabled

tPHZ

tPZH

tPZL

tPLZ

OUTPUT

HIGH–to–OFF

OFF–to–HIGH

OUTPUT

LOW–to–OFF

OFF–to–LOW

OEn INPUT

VOL

VOH

GND

VCC

SA00430

Figure 2. 3-State enable and disable times.

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