S-35392A-I8T1G Seiko Instruments, S-35392A-I8T1G Datasheet - Page 9

• Manufacturer Part Number: S-35392A-I8T1G
• Description: Real Time Clock 2-wire Real Time Clock
• Manufacturer: Seiko Instruments

Specifications of S-35392A-I8T1G

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

*1. Write-only flag. The S-35392A initializes by writing “1” in this register.
*2. Scratch bit. A R/W-enabled, user-free register.
*3. Read-only flag. Valid only when using the alarm function. When the alarm time matches, this flag is set to “1”, and it is
*4. Read-only flag. “POC” is set to “1” when power is applied. It is cleared to “0” when Read. Regarding “BLD”, refer to “
*5. Test bit for SII. Be sure to set “0” in use.
*6. No effect by Write. It is “0” when Read.
Device
Rev.2.0
Code C2 C1 C0
0110
2. Configuration of command
cleared to “0” when Read.
Low Power Supply Voltage Detection Circuit”.
8 types of command are available for the S-35392A, The S-35392A does Read/Write the various registers by inputting
these fixed codes and commands. The S-35392A does not perform any operation with any codes and commands other
than those below.
0
0
0
0
1
1
1
1
_00
0
0
1
1
0
0
1
1
0
1
0
1
0
1
1
0
Status register 1 access
Status register 2 access
Real-time data 1 access
(year data to)
Real-time data 2 access
(hour data to)
INT1 register access
(alarm time 1: week/hour/minute)
(INT1AE = 1, INT1ME = 0,
INT1FE = 0)
INT1 register access
(free register)
(settings other than alarm time 1)
INT2 register access
(alarm time 2: week/hour/minute)
(INT2AE = 1, INT2ME = 0,
INT2FE = 0)
INT2 register access
(output of user-set frequency)
(INT2ME = 0, INT2FE = 1)
Clock correction register access
Free register access
Command
Description
Table 9 List of Command
Seiko Instruments Inc.
RESET
INT1FE INT1ME INT1AE SC2
SC3
1 Hz
W1
W1
W1
M1
m1
m1
m1
m1
D1
H1
H1
H1
H1
B7
Y1
V0
F0
s1
s1
*2
*1
12
SC4
2 Hz
W2
W2
W2
M2
m2
m2
m2
m2
B6
Y2
D2
H2
H2
H2
H2
V1
F1
s2
s2
/
24
*2
SC0
SC5
4 Hz
W4
W4
W4
M4
m4
m4
m4
m4
B5
Y4
D4
H4
H4
H4
H4
V2
F2
s4
s4
*2
*2
SC1
SC6
8 Hz
M8
m8
m8
m8
D8
H8
H8
m8
H8
H8
B4
Y8
−
−
−
V3
F3
2-WIRE REAL-TIME CLOCK
s8
s8
*6
*6
*6
*2
*2
*2
Data
INT2FE INT2ME INT2AE TEST
INT1
SC7
16 Hz
M10
D10
H10
m10
H10
m10
H10
m10
H10
m10
Y10
s10
s10
B3
V4
−
−
−
F4
*6
*6
*6
*2
*3
SC11
INT2
SC8
m20
m20
m20
m20
Y20
D20
H20
H20
H20
H20
s20
s20
B2
−
−
−
−
V5
F5
*6
*6
*6
*6
*2
*3
*2
AM
AM
AM
AM
SC12
BLD
SC9
S-35392A
m40
m40
m40
m40
Y40
s40
s40
B1
−
−
−
−
−
V6
F6
/
/
/
/
*6
*6
*6
*6
*6
PM
PM
PM
PM
*4
*2
*2
SC10
SC13
A1WE
A2WE
POC
A1mE
A2mE
A1HE
A2HE
Y80
B0
−
−
−
−
−
−
−
−
−
V7
F7
*6
*6
*6
*6
*6
*6
*6
*6
*6
*4
9
*5
*2
*2