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74HCT193D 数据表(PDF) 4 Page - NXP Semiconductors |
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74HCT193D 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 13 page December 1990 4 Philips Semiconductors Product specification Presettable synchronous 4-bit binary up/down counter 74HC/HCT193 PIN DESCRIPTION Note 1. LOW-to-HIGH, edge triggered PIN NO. SYMBOL NAME AND FUNCTION 3, 2, 6, 7 Q0 to Q3 flip-flop outputs 4CPD count down clock input(1) 5CPU count up clock input(1) 8 GND ground (0 V) 11 PL asynchronous parallel load input (active LOW) 12 TCU terminal count up (carry) output (active LOW) 13 TCD terminal count down (borrow) output (active LOW) 14 MR asynchronous master reset input (active HIGH) 15, 1, 10, 9 D0 to D3 data inputs 16 VCC positive supply voltage Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol. |
类似零件编号 - 74HCT193D |
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类似说明 - 74HCT193D |
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