74ALVT162821DL datasheet(6/12 Pages) PHILIPS

Part #	74ALVT162821DL

Description	2.5V/3.3V 20-bit bus-interface D-type flip-flop; positive-edge trigger with 30ohm termination resistors 3-State

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Manufacturer	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Product specification

74ALVT162821

2.5V/3.3V 20-bit bus-interface D-type flip-flop;

positive-edge trigger with 30

W termination resistors (3-State)

1998 Oct 02

6

DC ELECTRICAL CHARACTERISTICS (3.3V

"0.3V RANGE)

LIMITS

MIN

TYP1

MAX

VIK

Input clamp voltage

VCC = 3.0V; IIK = –18mA

–0.85

–1.2

V

VOH

High-level output voltage

VCC = 3.0 to 3.6V; IOH = –100µA

VCC–0.2

VCC

V

VOH

High-level out ut voltage

VCC = 3.0V; IOH = –32mA

2.0

2.3

V

VCC = 3.0V; IOL = 100µA

0.07

0.2

VOL

Low–level output voltage

VCC = 3.0V; IOL = 16mA

0.25

0.4

V

VOL

Low–level out ut voltage

VCC = 3.0V; IOL = 32mA

0.3

0.5

V

VCC = 3.0V; IOL = 64mA

0.4

0.55

VRST

Power-up output low voltage6

VCC = 3.6V; IO = 1mA; VI = VCC or GND

0.55

V

VCC = 3.6V; VI = VCC or GND

Control pins

0.1

±1

II

Input leakage current

VCC = 0 or 3.6V; VI = 5.5V

0.1

10

µA

II

In ut leakage current

VCC = 3.6V; VI = VCC

Data pins4

0.5

1

µA

VCC = 3.6V; VI = 0V

Data ins4

0.1

-5

IOFF

Off current

VCC = 0V; VI or VO = 0 to 4.5V

0.1

±100

µA

Bus Hold current

VCC = 3V; VI = 0.8V

75

130

IHOLD

Bus Hold current

Data inputs7

VCC = 3V; VI = 2.0V

–75

–140

µA

Data inputs7

VCC = 0V to 3.6V; VCC = 3.6V

±500

IEX

Current into an output in the

High state when VO > VCC

VO = 5.5V; VCC = 3.0V

10

125

µA

IPU/PD

Power up/down 3-State output

current3

VCC ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC

OE/OE = Don’t care

1

±100

µA

IOZH

3-State output High current

VCC = 3.6V; VO = 3.0V; VI = VIL or VIH

0.5

5

µA

IOZL

3-State output Low current

VCC = 3.6V; VO = 0.5V; VI = VIL or VIH

0.5

–5

µA

ICCH

VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0

0.07

0.1

ICCL

Quiescent supply current

VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0

5.1

7

mA

ICCZ

VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 05

0.07

0.1

∆ICC

Additional supply current per

input pin2

VCC = 3V to 3.6V; One input at VCC–0.6V,

Other inputs at VCC or GND

0.04

0.4

mA

NOTES:

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

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

3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 0.2V a

transition time of 100

µsec is permitted. This parameter is valid for Tamb = 25°C only.

4. Unused pins at VCC or GND.

5. ICCZ is measured with outputs pulled up to VCC or pulled down to ground.

6. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power.

7. This is the bus hold overdrive current required to force the input to the opposite logic state.

AC CHARACTERISTICS (3.3V

"0.3V RANGE)

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

LIMITS

SYMBOL

PARAMETER

WAVEFORM

Tamb = –40 to +85oC

VCC = +3.3V

UNIT

MIN

TYP

MAX

fMAX

Maximum clock frequency

1

150

MHz

tPLH

tPHL

Propagation delay

nCP to nQx

1

1.0

3.2

5.0

4.7

ns

tPZH

tPZL

Output enable time

to High and Low level

3

4

1.0

0.5

3.4

2.3

5.6

3.7

ns

tPHZ

tPLZ

Output disable time

from High and Low level

3

4

1.5

3.7

3.0

5.4

4.3

ns

NOTE:

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

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