Si80xx

10

Rev. 1.0

Table 6. Enable Input Truth1

P/N

EN21,2

Operation

Si8030

Si8040

Si8050

H

Outputs B1, B2, B3, B4, B5, B6 are enabled and follow input state.

L

Outputs B1, B2, B3, B4, B5, B6 are disabled and Logic Low or in high impedance state.3

Si8035

Si8045

Si8055

Si8065

—

Outputs B1, B2, B3, B4, B5, B6 are enabled and follow input state.

Notes:

1. Enable, EN, can be used for multiplexing, for clock sync, or other output control. EN is internally pulled-up to local VDD

by a 16 µA current source allowing it to be connected to an external logic level (high or low) or left floating. To minimize

noise coupling, do not connect circuit traces to EN if it is left floating. If EN is unused, it is recommended that it be

connected to an external logic level, especially if the Si80xx is operating in a noisy environment.

2. X = not applicable; H = Logic High; L = Logic Low.

3. When using the enable pin (EN) function, the output pin state is driven into a high-impedance state when the EN pin is

disabled (EN = 0).