AS260 datasheet(12/45 Pages) ONSEMI

12 / 45 page

AR0260 DS Rev. G Pub. 4/15 EN

©Semiconductor Components Industries, LLC,2015.

AR0260: 1/6-Inch 1080P High-Definition (HD) Digital Image Sensor

Power-Down Sequence

Reset Modes

Three types of reset are available:

•An internal power-on reset

• A hard reset is issued by toggling the RESET_BAR signal

• A soft reset is issued by writing commands through the two-wire serial interface

Power-On Reset

The AR0260 includes a power-on reset feature that initiates a reset upon power-up. The

RESET_BAR signal has an internal pull-up resistor and can be left floating.

Hard Reset

The AR0260 enters the reset state when the external RESET_BAR signal is asserted LOW,

as shown in Figure 5. Parallel data output signals will be in High-Z state.

Figure 5:

Hard Reset Operation

Notes:

1. This delay is dependent on EXTCLK frequency.

Table 6:

Hard Reset

Symbol

Definition

Min

Typ

Max

Unit

RESET_BAR pulse width

–

EXTCLK cycles

Active EXTCLK required after RESET_BAR asserted

–

Active EXTCLK required before RESET_BAR de-asserted

–

Maximum internal boot time1

––

EXTCLK

Reset

RESET_BAR

Mode

Internal Boot Time

SDATA

Enter standy mode

All Outputs

Data Active

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