Epson SQ-B50/2550 Technical Manual page 282

REV.-A
A.1.1.11 MN6275AS
The MN6275AS is a C-MOS circuit for a analog-type quartz clocks. The device operates with a 32-KHz
quartz crystal unit and provides driving pulse outputs for a 1-Hz stepper motor. The device is also
provided with a 4096-Hz intermittent alarm output, and has a voltage stabilizer.
ALO __
---1-.
1
01 2 7
02 3MN6275A6
XI 4 5
All
\00
Vss
XO
Figure A-20. MN6275AS Pin Assignment
XO
3-Stage
r-+-J'Mr--4~--r---l"
Div ider
r------.m
All
r----IN1nput Circuit TEST
13-Stage
1--.....--.1
Divider
Figure A-21. MN6275AS Block Diagram
A-24