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74HCT123D 数据表(PDF) 4 Page - NXP Semiconductors |
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74HCT123D 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 24 page 74HC_HCT123_5 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 05 — 13 July 2009 4 of 24 NXP Semiconductors 74HC123; 74HCT123 Dual retriggerable monostable multivibrator with reset 5. Pinning information 5.1 Pinning 5.2 Pin description (1) The die substrate is attached to this pad using conductive die attach material. It can not be used as supply pin or input. Fig 5. Pin configuration for DIP16, SO16, SSOP16 and TSSOP16 Fig 6. Pin configuration for DHVQFN16 74HC123 74HCT123 1A VCC 1B 1REXT/CEXT 1RD 1CEXT 1Q 1Q 2Q 2Q 2CEXT 2RD 2REXT/CEXT 2B GND 2A 001aaa698 1 2 3 4 5 6 7 8 10 9 12 11 14 13 16 15 001aaf046 74HC123 2REXT/CEXT 2B 2CEXT 2RD 2Q 2Q 1Q 1Q 1RD 1CEXT 1B 1REXT/CEXT Transparent top view 7 10 6 11 5 12 4 13 3 14 2 15 terminal 1 index area VCC(1) Table 2. Pin description Symbol Pin Description 1A 1 negative-edge triggered input 1 1B 2 positive-edge triggered input 1 1RD 3 direct reset LOW and positive-edge triggered input 1 1Q 4 active LOW output 1 2Q 5 active HIGH output 2 2CEXT 6 external capacitor connection 2 2REXT/CEXT 7 external resistor and capacitor connection 2 GND 8 ground (0 V) 2A 9 negative-edge triggered input 2 2B 10 positive-edge triggered input 2 2RD 11 direct reset LOW and positive-edge triggered input 2 2Q 12 active LOW output 2 1Q 13 active HIGH output 1 1CEXT 14 external capacitor connection 1 1REXT/CEXT 15 external resistor and capacitor connection 1 VCC 16 supply voltage |
类似零件编号 - 74HCT123D |
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类似说明 - 74HCT123D |
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