HD74LS160A Просмотр технического описания (PDF) - Renesas Electronics

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HD74LS160A

Synchronous Decade Counter (direct clear)

Renesas Electronics 

HD74LS160A

Waveforms 2

tPLH, tPHL, (Clock→Q)

tTLH

tTHL

90% 90%

3V

Clock

10% 10%

1.3V

1.3V

0V

tTLH

tTHL

Data Inputs

A, B, C or D

90%

10%

90%

tPLH

10%

3V

0V

tPHL

Outputs

QA, QB, QC or QD

1.3V

VOH

1.3V

VOL

Note: Input pulse: tTLH ≤ 15 ns, tTHL ≤ 6 ns, Clock input: PRR = 1 MHz, duty cycle 50%,

Data input: PRR = 500 kHz, duty cycle 50%

Waveforms 3

tPLH, tPHL, (Enable T→Ripple Carry)

tTLH

tTHL

90 %

90 %

3V

Enable T

1.3 V

1.3 V

10 %

10 %

0V

tPLH

tPHL

Ripple

Carry

1.3 V

1.3 V

VOH

VOH

Note: Input pulse: tTLH ≤ 15 ns, tTHL ≤ 6 ns, PRR = 1 MHz

Rev.3.00, Jul.15.2005, page 8 of 10

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