74HC191PW datasheet(13/14 Pages) PHILIPS

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74HC191PW 데이터시트(PDF) 13 Page - NXP Semiconductors

부품명	74HC191PW

상세설명	Presettable synchronous 4-bit binary up/down counter

PDF	14 Pages

Scroll/Zoom	100%

제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

Logo

13 / 14 page

December 1990

Philips Semiconductors

Product speciﬁcation

Presettable synchronous 4-bit binary

up/down counter

74HC/HCT191

Fig.13 Waveforms showing the input (PL) to output (Qn) propagation delays.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

Fig.14 Waveforms showing the up/down count input (U/D) to terminal count and ripple clock output (TC, RC)

propagation delays.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

Fig.15 Waveforms showing the parallel load input (PL) pulse width, removal time to clock (CP) and the output

(Qn) transition times.

(1) HC : VM = 50%; VI = GND to VCC.

HCT : VM = 1.3 V; VI = GND to 3 V.

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