STV7622 datasheet(15/32 Pages) STMICROELECTRONICS

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STV7622

Truth tables

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Table 8.

Truth table for power outputs

(1)

/STB1

/STB2 (2)

BS1

BS2

/BLK

POC

Driver

output

Note

Comments

all L

Output at Low level

all H

Output at High level

(3)

Data latched

(4)

Data latched

(5)

Data latched (RSDS)

(6)

Data latched

(3)

Data copied

(3)

Data copied

(4)

Data copied (RSDS)

(4)

Data copied (RSDS)

(5)

Data copied

(5)

Data copied

(6)

Data copied

(6)

Data copied

Qn is the state of the shift register output (Figure 2). “X” means either High or Low (H or L).

/STB2 is not used in LVCMOS operating mode and can be left “open” or “floating”.

Qn + 1 = DB1, Qn + 2 = DB2, Qn + 3 = DB3, Qn + 4 = DB4, Qn + 5 = DB5, Qn + 6 = DB6; n = {0, 6, 12, 18, …186}.

RSDS mode: Qn + 1 = DB1, Qn + 1 = DB2, Qn + 2 = DB3, Qn + 2 = DB4, Qn + 3 = DB5, Qn + 3 = DB6; n = {0, 6, 12, 18, …186}.

Qn + 1 = DB1, Qn + 2 = DB2, Qn + 3 = DB3; n = {0, 3, 6, 9, …186, 189}.

Qn + 1 = DB1, Qn + 2 = DB2, Qn + 3 = DB3, Qn + 97 = DB4, Qn + 98 = DB5, Qn + 99 = DB6; n = {0, 3, 6, 9, …186, 189}.

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