Logic diagram

ST2129B

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DocID023308 Rev 2

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Logic diagram

Figure 2. Logic block diagram

Device block diagrams

Figure 3. ST2129BQTR block diagram

1. When OE is LOW, all I/Os are in high-impedance mode.

2. ST2129BQTR has 2 channels. For simplicity, the above diagram shows only 1 channel.

ST2149

$09

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