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PDF S-3510 Data sheet ( Hoja de datos )
| Número de pieza | S-3510 | |
| Descripción | REAL-TIME CLOCK | |
| Fabricantes | Seiko | |
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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
1 page  
Rev. 1.2_00
REAL-TIME CLOCK
S-3510 Series
I Ordering Information
Model No.
S-3510ANFJA
S-3510ACFJA
S-3510ADFJ
S-3510AEFJ
S-3510AFFJ
SIO output
Nch open-drain
CMOS
CMOS
Nch open-drain
CMOS
Table 3
TPOUT output
Selection of 1 HZ /
32,768 HZ by command
Selection of 1 HZ /
32,768 HZ by command
32,768 HZ
32,768 HZ
32,768 HZ
TPOUT
output form
Nch open-drain
Nch open-drain
Nch open-drain
Nch open-drain
CMOS
Oscillation
circuit capacity
Internal Cg, Cd
Internal Cg, Cd
External Cg,
Internal Cd
Internal Cg, Cd
External Cg,
Internal Cd
Seiko Instruments Inc.
5
5 Page 
Rev. 1.2_00
REAL-TIME CLOCK
S-3510 Series
(2) Write to the Status Register
The S-3510 series is provided with a 4-bit status register. To write the data in the register, send the
STATUS WRITE command (1011D3D2D1D0). This data is retrieved in synchronization with the falling edge
of the CS.
D3 D2 D1 D0
Free bit: Stores the information according to a user-specified memory
bit. It does not affect the function of the timer. Reset to”0”
during initialization.
TPOUT output frequency-select bit*1
. In the S-3510ANFJA, the S-3510ACFJx
0: 32768 Hz 1: 1 Hz
In the S-3510AEFJA, the S-3510ADFJA, the S-3510AFFJA
0, 1: 32768 Hz (It can be used as Free bit)
TPOUT enable bit
In the S-3510ANFJx, the S-3510ACFJx
0: Output 1: High impedance
In the S-3510AEFJA, the S-3510ADFJA, the S-3510AFFJA
0, 1: Output (It can be used as Free bit)
12/24-hour display change bit 0: 12-hour display
1: 24-hour display
*1. When the frequency-select bit is rewritten during operation, the first pulse generated immediately after
the CS is turned to “L” cannot be output at the correct frequency
Upon initialization, (D3, D2, D1, D0) is set to (1, 0, 1, 0). In other words,
(a) In the S-3510ANFJx, the S-3510ACFJA, 1 Hz is output from TPOUT , and the status is set to the
24-hour display mode.
(b) In the S-3510AEFJx, the S-3510ADFJA, the S-3510AFFJA, 32768 Hz is output from TPOUT , and
the status is set to the 24-hour display mode.
When initialization is not executed, the data of the status register is not specified. Always execute
initialization when switching on the power.
CS
SCK
SIO
X 1 0 1 1 D3 D2 D1 D0
Figure 7
Seiko Instruments Inc.
11
11 Page | ||
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| PDF Descargar | [ Datasheet S-3510.PDF ] | |
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