HT1382_1105 HOLTEK [Holtek Semiconductor Inc], HT1382_1105 Datasheet - Page 14

• Manufacturer Part Number: HT1382_1105
• Description: I2C/3-Wire Real Time Clock
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

Rev. 1.40
DT6
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Alarm Enable Bit - AE
Digital Trimming Setting Bits - DTS
Digital Trimming Bits - DT6~DT0
Minimum resolution
Correction range
Adjustment time
DT5
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
This bit enables/disables the alarm function. When the AE bit is set to 1 , the alarm function is
enabled. When the AE bit is cleared to 0 , the alarm function is disabled.
This bit sets the digital trimming resolution and adjustment time. The user must detect the status of the
EB bit before reading data or writing data. If the EB bit is 0 , it is valid to read data or write data. If the
EB bit is 1 , it is invalid to read data or write data.
This digital trimming bit, DT6, is the sign bit. A 0 indicates positive calibration and a 1 indicates
negative calibration. DT5~DT0 are the calibration values and the adjustable range is -63 ~ +63. If DTS
is cleared to 0 , the correction range is -192.276ppm to +192.276ppm and if DTS is set to 1 , the
correction range is -64.071ppm to +64.071ppm. The user must detect the status of EB bit before
reading data or writing data. If the EB bit is 0 , it is valid to read data or write data. If the EB bit is 1 ,
it is invalid to read data or write data.
DT4
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
DT3
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
:
:
:
:
DT2
-192.276ppm to +192.276ppm
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
Every 10 seconds
DT1
0
0
1
1
1
1
0
0
1
1
0
0
0
0
1
1
3.052ppm
DTS=²0²
14
DT0
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
I
2
C/3-Wire Real Time Clock
Value
+63
+62
+61
-60
-61
-62
-63
+6
+3
+2
+1
-1
-2
-3
0
0
+192.276
+189.224
+186.172
+183.120
-64.071ppm to + 64.071ppm
DTS=²0²
-183.120
-186.172
-189.224
-192.276
+9.156
+6.104
+3.052
-3.052
-6.104
-9.156
Correction Value (ppm)
0
0
:
:
:
:
Every 30 seconds
1.017ppm
DTS=²1²
DTS=²1²
HT1382
+64.071
+63.054
+62.037
+61.020
-61.020
-62.037
-63.054
-64.071
May 27, 2011
+3.051
+2.034
+1.017
-2.034
-3.051
-1.07
0
0
:
:
:
: