Sanyo LC85632, Руководство пользователя

Страница: 4 / 34

LC85632
Continued from preceding page.
Internal equivalent
No. Pin I/O
circuit
Pin function Handling when unused
20 TIME SET INPUT 3I Input pin that starts the setting/update of the current time, Open
the alarm time, or the calendar date. Normally left open
(NOP).
The application of a high level is taken as a + input,
which increases the value of the setting, and a low is taken
as a – input, which decreases the value of the setting.
21 CAL DISP & 3I Input pin for calendar display and snooze. Open
SNOOZE
Normally left open. When a high level is applied the
calendar displays the day and month, and when a low level
is applied the calendar displays the month and day.
However, if an alarm signal is being output from either
ALM-A OUTPUT or ALM-B OUTPUT (pin 23 or 24) the
calendar is not displayed, but rather a snooze operation is
started.
25 ALM-A/B DISP & SEL 3I Input pin for switching between alarm mode and current Open
time mode. Normally left open. When a high level is applied,
the current time setting for alarm A is displayed, and when
a low level is applied, the current time setting for alarm B is
displayed. In either case, the time setting and the operation
enable/disable state can be changed.
26 MANUAL & SLEEP 3I Input pin for setting the RADIO OUTPUT pin (pin 22) output Open
control and the sleep function time. Normally left open.
When a high level is applied the RADIO OUTPUT goes
high. This pin can also be used for setting the sleep
function time. When a low level is applied the RADIO
OUTPUT goes low. When either a low level or a high level
is applied, any alarm output in progress will be stopped.
Continued on next page.
No. 4659-4/34
VDD
H
L
H:
L:
High threshold
input
Low threshold
input
VDD
H
L
H:
L:
High threshold
input
Low threshold
input