Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

RV5C386A Datasheet(PDF) 35 Page - RICOH electronics devices division

Part No. RV5C386A
Description  I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
Download  49 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

RV5C386A Datasheet(HTML) 35 Page - RICOH electronics devices division

Back Button RV5C386A_03 Datasheet HTML 31Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 32Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 33Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 34Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 35Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 36Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 37Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 38Page - RICOH electronics devices division RV5C386A_03 Datasheet HTML 39Page - RICOH electronics devices division Next Button
Zoom Inzoom in Zoom Outzoom out
 35 / 49 page
background image
35
RV5C386A
Notes
1) Oscillation adjustment does not affect the frequency of 32.768-kHz clock pulses output from the 32KOUT
pin.
2) Oscillation adjustment value range: When the oscillation frequency is higher than the target frequency
(causing a time count gain), an appropriate time count gain ranges from –3.05ppm to –189.2ppm with the
settings of “0, 0, 0, 0, 0, 1, 0” to “0, 1, 1, 1, 1, 1, 1” written to the F6, F5, F4, F3, F2, F1, and F0 bits in the
oscillation adjustment register, thus allowing correction of a time count gain of up to +189.2ppm.
Conversely, when the oscillation frequency is lower than the target frequency (causing a time count loss),
an appropriate time count gain ranges from +3.05ppm to +189.2ppm with the settings of “1, 1, 1, 1, 1, 1, 1”
to “1, 0, 0, 0, 0, 1, 0” written to the F6, F5, F4, F3, F2, F1, and F0 bits in the oscillation adjustment register,
thus allowing correction of a time count loss of up to –189.2ppm.
2.4-2 When Oscillation Frequency is Equal to Target Frequency (There is Neither a Time Count Gain
nor a Time Count Loss)
Writing the oscillation adjustment value setting of “0”, “+1”, “–64”, or “–63” to the oscillation adjustment register
disables the oscillation adjustment circuit.
2.4-3 When Oscillation Frequency is Lower than Target Frequency (There is a Time Count Loss)
Oscillation adjustment value*
3 =
(Oscillation frequency – Target frequency)
Oscillation frequency
× 3.051 × 10–6
= (Oscillation frequency – Target frequency)
× 10
Oscillation adjustment value calculations are exemplified below.
(1) For an oscillation frequency of 32768.85Hz and a target frequency of 32768.05Hz:
Oscillation adjustment value = (32768.85 – 32768.05 + 0.1) / (32768.85
× 3.051 × 10–6) = (32768.85 – 32768.05) × 10 + 1
= 9.001 = 9
In this instance, write the settings of “0, 0, 0, 1, 0, 0, 1” to the F6, F5, F4, F3, F2, F1, and F0 bits in the oscillation
adjustment register. Thus, an appropriate oscillation adjustment value in the presence of any time count gain
represents a distance from 01h.
(2) For an oscillation frequency of 32763.95Hz and a target frequency of 32768.05Hz:
Oscillation adjustment value = (32763.95 – 32768.05) / (32763.95
× 3.051 × 10–6) = (32763.95 – 32768.05) × 10
= –41.015 = –41
To represent an oscillation adjustment value of –41 in 7-bit coded decimal notation, subtract 41(29h) from
128(80h) to obtain 57h. In this instance, write the settings of “1, 0, 1, 0, 1, 1, 1” in the F6, F5, F4, F3, F2, F1, and F0
bits in the oscillation adjustment register. Thus, an appropriate oscillation adjustment value in the presence of
any time count loss represents a distance from 80h.
Oscillation adjustment involves an adjustment differential of approximately ±1.5ppm from the target frequency
at normal temperature.
.
.
.
.


Similar Part No. - RV5C386A_03

ManufacturerPart No.DatasheetDescription
RICOH electronics devices division
RICOH electronics devic...
RV5C386A-E2 RICOH-RV5C386A-E2 Datasheet
362Kb / 42P
   I2C-bus Real-Time Clock ICs with Voltage Monitoring Function
More results

Similar Description - RV5C386A_03

ManufacturerPart No.DatasheetDescription
RICOH electronics devices division
RICOH electronics devic...
RV5C387A RICOH-RV5C387A_03 Datasheet
376Kb / 49P
   I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
RS5C372B-E2-F RICOH-RS5C372B-E2-F Datasheet
402Kb / 57P
   I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
RV5C386A RICOH-RV5C386A Datasheet
362Kb / 42P
   I2C-bus Real-Time Clock ICs with Voltage Monitoring Function
RV5C387A RICOH-RV5C387A Datasheet
363Kb / 42P
   I2C-bus Real-Time Clock ICs with Voltage Monitoring Function?
RS5C372A-E2-F RICOH-RS5C372A-E2-F Datasheet
402Kb / 57P
   I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
RV5C339A RICOH-RV5C339A_03 Datasheet
364Kb / 46P
   3-WIRE SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION
RS5C372A RICOH-RS5C372A Datasheet
442Kb / 59P
   I2C bus SERIAL INTERFACE REAL-TIME CLOCK ICs
Integrated Device Technology
Integrated Device Techn...
IDT1339-31DVGI IDT-IDT1339-31DVGI Datasheet
350Kb / 26P
   REAL-TIME CLOCK WITH SERIAL I2C INTERFACE
RICOH electronics devices division
RICOH electronics devic...
RV5C338A RICOH-RV5C338A Datasheet
440Kb / 52P
   3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION?
RV5C339A RICOH-RV5C339A Datasheet
421Kb / 51P
   3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION???
More results


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz