HD74LS195AFPEL datasheet(5/8 Pages) RENESAS

tên linh kiện	HD74LS195AFPEL

Giải thích chi tiết về linh kiện	4-bit Parallel-Access Shift Register

PDF	8 Pages

Scroll/Zoom	100%

nhà sản xuất	RENESAS [Renesas Technology Corp]

Trang chủ	http://www.renesas.com

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5 / 8 page

HD74LS195A

Rev.3.00, Jul.15.2005, page 5 of 7

Testing Method

Test Circuit

4.5V

Load circuit 1

Output

VCC

Input

P.G.

Zout = 50

Ω

Input

P.G.

Zout = 50

Ω

Shift/Load

CLR

Same as Load Circuit 1.

Output

Same as Load Circuit 1.

Output

Same as Load Circuit 1.

Output

Same as Load Circuit 1.

Output

Notes:

CL includes probe and jig capacitance.

All diodes are 1S2074(H).

Testing Table

Inputs

Item

From input to output

CLR

Shift /

Load

ƒmax

4.5V

GND

4.5V

Clear

→ QA to QD

GND

4.5V

GND

4.5V

tPLH

tPHL

Clock

→ QA to QD, QD

4.5V

GND

4.5V

Outputs

Item

From input to output

ƒmax

OUT

Clear

→ QA to QD

OUT

—

OUT

tPLH

tPHL

Clock

→ QA to QD, QD

OUT

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