HD74HC365 Просмотр технического описания (PDF) - Renesas Electronics

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HD74HC365

Hex Bus Drivers (with 3-state outputs)

Renesas Electronics 

HD74HC365

Test Circuit

VCC

Input

Pulse Generator

Zout = 50 Ω

VCC

G1, G2

Output

1Y to 6Y

1A to 6A

1 k Ω S1

CL =

50 pF

OPEN

GND

VCC

TEST

tPLH / t PHL

tZH/ t HZ

tZL / t LZ

S1

OPEN

GND

VCC

Note : 1. CL includes probe and jig capacitance.

Waveforms

• Waveform – 1

Input A

tr

10 %

90 %

50 %

tPLH

tf

90 %

50 %

10 %

tPHL

Output Y

50 %

10 %

90 %

90 %

50 %

10 %

• Waveform – 2

tf

Input G

90 %

50 %

10 %

tZL

tTLH

tr

10 %

90 %

50 %

tLZ

Waveform - A

50 %

tZH

tHZ

Waveform - B

50 %

tTHL

10 %

90 %

VCC

0V

VOH

VOL

VCC

GND

VOH

VOL

VOH

VOL

Notes : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, tr ≤ 6 ns, tf ≤ 6 ns

2. Waveform– A is for an output with internal conditions such that the

output is low except when disabled by the output control.

3. Waveform– B is for an output with internal conditions such that the

output is high except when disabled by the output control.

4. The output are measured one at a time with one transition per measurement.

Rev.2.00 Jan 31, 2006 page 4 of 6

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