MC74LVX259 datasheet(6/9 Pages) ONSEMI

Part #	MC74LVX259

Description	8-Bit Addressable Latch/1-of-8 Decoder CMOS Logic Level Shifter

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Manufacturer	ONSEMI [ON Semiconductor]

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MC74LVX259

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6

TIMING REQUIREMENTS Input tr = tf = 3.0 ns

Symbol

Parameter

Test Conditions

TA = 25°C

TA = ≤ 85°C

Unit

Min

Typ

Max

Min

Max

tw

Minimum Pulse Width, Reset or Enable

(Figure 7)

VCC = 2.7 V

4.5

−

5.0

−

ns

VCC = 3.3 V ± 0.3 V

4.5

−

5.0

−

tsu

Minimum Setup Time, Address or Data to Enable

(Figure 7)

VCC = 2.7 V

4.0

−

4.0

−

ns

VCC = 3.3 V ± 0.3 V

3.0

−

3.0

−

th

Minimum Hold Time, Enable to Address or Data

(Figure 6 or 7)

VCC = 2.7 V

2.0

−

2.0

−

ns

VCC = 3.3 V ± 0.3 V

2.0

−

2.0

−

tr, tf

Maximum Input, Rise and Fall Times

(Figure 4)

VCC = 2.7 V

−

400

−

300

ns

VCC = 3.3 V ± 0.3 V

−

300

−

300

*Includes all probe and jig capacitance

Figure 4. Switching Waveform

CL*

TEST POINT

DEVICE

UNDER

TEST

OUTPUT

Q

DATA

IN

50%

tPLH

tPHL

tf

GND

VCC

50%

Figure 5. Switching Waveform

tr

50%

tPHL

50%

tPHL

DATA

IN

ADDRESS

SELECT

OUTPUT

Q

VCC

GND

VCC

GND

VCC

GND

Figure 6. Switching Waveform

Figure 7. Switching Waveform

Figure 8. Switching Waveform

50%

tw

50%

tPHL

DATA IN

OUTPUT Q

RESET

VCC

GND

VCC

GND

VCC

GND

VCC

GN-

D

DATA IN

OUTPUT Q

ENABLE

DATA IN OR

ADDRESS

SELECT

ENABLE

VCC

GND

VCC

GND

tw

50%

tPHL

50%

tsu

th(H)

tsu

Figure 9. Test Circuit

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