89-2-4八位集成DAC0832 8位 DDDDDDD 输 DAC 8位 入锁存器 寄 DAC OUTI U 存 ILE WRI AGND 318WR2 LEI LE2 XFER AGND DDDD 5 DAC 16 6083215 DDDD CS & WRI Uc 12 00T2 DGND 10 WR2 & XFER -DGND§9-2-4 八位集成DAC0832