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Seiko Instruments Electronic Components Datasheet

S-3510 Datasheet

REAL-TIME CLOCK

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S-3510 pdf
Rev. 1.2_00
REAL-TIME CLOCK
S-3510 Series
The S-3510 is a series of CMOS real-time clock ICs that inputs/
outputs serial clock or calendar data into/from the CPU.
Features
Operating power supply: 1.7 V to 5.5 V
Low current consumption: 1.2 µA typ. at 3.0 V
(S-3510AFFJA:
2.0 µA typ. at 3.0 V)
BCD output of second, minute, hour, day, date, month and year
Easy serial interface to CPU with 3 lines (SIO, SCK, and CS)
Built-in automatic calendar, automatic leap-year calculation up to 2099.
Built-in voltage detector
Built-in constant voltage circuit
Built-in 32 kHz oscillation circuit (Built-in Cg/Cd, or Cd only)
I Applications
Video cameras
FAXes
Cellular phones
Printers
I Package
8-Pin SOP (Pin pitch : 1.27 mm) (Package drawing code: FJ008-D)
Seiko Instruments Inc.
1



Seiko Instruments Electronic Components Datasheet

S-3510 Datasheet

REAL-TIME CLOCK

No Preview Available !

S-3510 pdf
REAL-TIME CLOCK
S-3510 Series
I Block Diagram
XIN
XOUT
TPOUT
OSC
&
Divider
VDD
VSS
Voltage
Detector
Rev. 1.2_00
Counter
Sec. Min.
Hr. Day
Date Mon. Year
Sec. Min. Hr. Day
Date Mon. Year
Shift Register
Status Register
Serial Interface
&
Controller
Figure 1
SIO
SCK
CS
2 Seiko Instruments Inc.



Seiko Instruments Electronic Components Datasheet

S-3510 Datasheet

REAL-TIME CLOCK

No Preview Available !

S-3510 pdf
Rev. 1.2_00
I Pin Assignment
TPOUT
XOUT
XIN
VSS
8-Pin SOP
Top view
1 8 VDD
2 7 SIO
3 6 SCK
4 5 CS
Figure 2
REAL-TIME CLOCK
S-3510 Series
I Pin Function
No. Name
1 TPOUT
2 XOUT
3 XIN
4 VSS
5 CS
6 SCK
7 SIO
8 VDD
Table 1
Function
Standard signal output (Nch open-drain output or CMOS output)
Connects to the X’ftal resonator (f=32,768 Hz)
Built-in Cg/Cd, or Cd only
Power supply (GND)
Chip select input (Built-in pull-down resistance) :
“H”: The SIO pin is capable of inputting/outputting data.
The SCK pin is capable of accepting the input.
“L”: The SIO pin is at Hi-Z.
The SCK pin is not capable of accepting the input.
Clock input :
Inputs and outputs data from the SIO pin in synchronization with the
clock. The clock cannot be accepted when the CS pin is “L”.
Serial data input/output :
When the CS is “L”, the SIO pin is at “Hi-Z”. When the CS pin changes
from “L” to “H”, it serves as the input pin. The SIO pin is assigned to the
input or output pin according to the next command data. The type of
output is either Nch open-drain or CMOS depending upon the model of
the IC you use.
Positive power supply
Seiko Instruments Inc.
3




Part Number S-3510
Description REAL-TIME CLOCK
Maker Seiko
Total Page 26 Pages
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