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U74HC590G-S16-R 数据表(PDF) 7 Page - Unisonic Technologies |
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U74HC590G-S16-R 数据表(HTML) 7 Page - Unisonic Technologies |
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7 / 8 page ![]() U74HC590 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 7 of 8 www.unisonic.com.tw QW-R126-044.A TIMING REQUIREMENTS (TA=25°С, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT VCC=2.0V 4 MHz VCC=4.5V 20 MHz Clock Frequency fCLOCK VCC=6.0V 24 MHz VCC=2.0V 125 ns VCC=4.5V 25 ns Pulse duration, CCLK or RCLK high or low VCC=6.0V 21 ns VCC=2.0V 100 ns VCC=4.5V 20 ns Pulse duration, CCLR Low tW VCC=6.0V 17 ns VCC=2.0V 100 ns VCC=4.5V 20 ns Setup Time, CCKEN Low Before CCLK↑ VCC=6.0V 17 ns VCC=2.0V 100 ns VCC=4.5V 20 ns Setup Time, CCLR Hihg (Inactive) Before CCLK↑ VCC=6.0V 17 ns VCC=2.0V 100 ns VCC=4.5V 20 ns Setup Time, CCLK↑ Before RCLK↑ tSU VCC=6.0V 17 ns VCC=2.0V 50 ns VCC=4.5V 10 ns Hold Time, CCKEN Low After CCLK↑ tH VCC=6.0V 9 ns OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Power Dissipation Capacitance CPD No load. 250 pF |
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