STV7622 datasheet(14/32 Pages) STMICROELECTRONICS

14 / 32 page

Truth tables

STV7622

14/32

Truth tables

Table 7.

Shift register truth table

Input pins

Shift register function

BS2

BS1

DIR

CLK1

CLK2(1)

Q output

N.C.

Left/Right shift

DB1,2,

…6 input pins, 6 × 32-bit mode

H or L

N.C.

Steady

N.C.

Right/Left shift

DB1,2,

…6 input pins, 6 × 32-bit mode

H or L

N.C.

Steady

N.C.

Left/Right shift

DB1,2, 3 input pins, 3

× 64-bit mode

H or L

N.C.

Steady

N.C.

Right/Left shift

DB1,2, 3 input pins, 3

× 64-bit mode

H or L

N.C.

Steady

Left/Right shift

DB1,2,

…6 input pins, RSDS mode

H or L

L or H

Steady

Right/Left shift

DB1,2,

…6 input pins, RSDS mode

H or L

L or H

Steady

N.C.

Left /Right shift, DB1,2,

…6 input pins,

× 3 × 32-bit mode

H or L

N.C.

Steady

N.C.

Left /Right shift, DB1,2,

…6 input pins,

× 3 × 32-bit mode

H or L

N.C.

Steady

CLK2 is not used in LVCMOS operating mode and can be left “open” or “floating”.

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