F15353G View Datasheet(PDF) - Feature Integration Technology Inc.

Part Name

Description

Manufacturer

F15353G

2-wire Real-time Clock

Feature Integration Technology Inc. 

Fintek

Feature Integration Technology Inc.

F15353

6.5.2 Selected Frequency Steady Interrupt Output

Set the status register_2 and the INT1# or INT2# pin output mode is set to the selected frequency steady

interrupt output. The set clock output follows the frequency data set in INT1# register_1 or register_2.

Ex:

32kE=0, INT1ME=0, INT1AE=Don’t care (0 or 1) INT2ME=0 INT2AE=Don’t care (0 or 1)

Change by the program

INT1FE/INT2FE

Free run output starts

INT1# pin/INT2# pin

OFF

Figure 4: Timing of Selected Frequency Steady Interrupt Output

6.5.3 Per-minute edge interrupt output

If INT1# or INT2# pin output mode is set as the per-minute edge interrupt, INT1# or INT2# will pull low as the first

minute carry is performed. Since the output is held, to rewrite 32kE, INT1AE, INT1ME, and INT1FE of the

register_2 to “0” sets the output to high (OFF state) in INT1# pin output mode. IN INT2# mode, to rewrite INT2AE,

INT2ME, and INT2FE of the register_2 to “0” or INT2AE of status register_2 to “0” will release the output from

low to high.

Ex:

32kE=0, INT1ME=0, INT1AE=Don’t care (0 or 1) INT2ME=0 INT2AE=Don’t care (0 or 1)

INT1ME/INT2ME

INT1# pin/INT2# pin

Change by the program

Minute Carrying Processing

OFF

If the period is less than

123us, "L" signal is output

Figure 5: Timing of Per-minute Edge Interrupt Output

6.5.4 Per-minute steady interrupt output1

15

V0.12P

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