Pin description Symbol Pin Description
1A 1 negative-edge triggered input 1(负边沿触发输入)
1B 2 positive-edge triggered input 1(正面边缘触发输入)
1RD 3 direct reset LOW and positive-edge triggered input 1 (直接复位低和正边缘触发输入)
1Q 4 active LOW output 1(低电平输出)
2Q 5 active HIGH output 2(高电平输出)
2CEXT 6 external capacitor connection 2(外部电容连接)
2REXT/CEXT 7 external resistor and capacitor connection 2(外部电容 和电阻连接)
GND 8 ground (0V)
2A 9 negative-edge triggered input 2(负边沿触发输入)
2B 10 positive-edge triggered input 2(正边沿触发输入)
2RD 11 direct reset LOW and positive-edge triggered input 2 (直接复位低和正边缘触发输入)
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