HD74LS93P datasheet(6/9 Pages) RENESAS

номер детали	HD74LS93P

подробное описание детали	4-bit Binary Counter

PDF	9 Pages

Scroll/Zoom	100%

производитель	RENESAS [Renesas Technology Corp]

домашняя страница	http://www.renesas.com

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6 / 9 page

HD74LS93

Rev.2.00, Feb.18.2005, page 6 of 8

Testing Table

Inputs

Outputs

Item

From input

to output

→ Q

to QA

GND

Out

fmax

→ Q

4.5 V

GND

—

Out

→ QA

to QA

GND

Out

—

→ QD

to QA

GND

—

Out

→ QB

4.5 V

GND

—

Out

—

→ QC

4.5 V

GND

—

Out

—

→ QD

4.5 V

GND

—

Out

tPLH

tPHL

R0**

→ Q

IN*

to QA

Out

* For initialized.

** Measured with each input and unused inputs at 4.5 V.

Waveform

1. fmax, tPLH, tPHL (Clock

→ Q)

VOH

VOL

VOH

VOL

VOH

VOL

VOH

VOL

Clock

1.3 V

tTHL

tPHL (Measure at tn+8)

1.3 V

tPHL (Measure at tn+4)

1.3 V

tPHL(Measure at tn+2)

1.3 V

tPLH (Measure at tn+1)

1.3 V

tPLH (Measure at tn+2)

1.3 V

tPLH (Measure at tn+4)

1.3 V

tPLH (Measure at tn+8)

1.3 V

tPHL (Measure at tn+16)

1.3 V

10%

90%

tTLH

10%

90%

1.3 V

Notes:

Input pulse; tTLH

≤ 15 ns, t

THL

≤ 5 ns, PRR = 1 MHz, duty cycle = 50% and for fmax.,

tTLH = tTHL

≤ 2.5 ns

tn is reference bit time when all outputs are low.

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