数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

ISL12022MIBZ 数据表(PDF) 11 Page - Intersil Corporation

部件名 ISL12022MIBZ
功能描述  Real Time Clock with Embedded Crystal, 짹5ppm Accuracy
Download  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

ISL12022MIBZ 数据表(HTML) 11 Page - Intersil Corporation

Back Button ISL12022MIBZ Datasheet HTML 7Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 8Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 9Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 10Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 11Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 12Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 13Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 14Page - Intersil Corporation ISL12022MIBZ Datasheet HTML 15Page - Intersil Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 27 page
background image
11
FN6668.4
December 18, 2008
Oscillator Compensation
The ISL12022M provides both initial timing correction and
temperature correction due to variation of the crystal
oscillator. Analog and digital trimming control is provided for
initial adjustment, and a temperature compensation function
is provided to automatically correct for temperature drift of
the crystal. Initial values for the initial AT and DT settings
(ITR0), temperature coefficient (ALPHA), crystal capacitance
(BETA), as well as the crystal turn-over temperature (XTO),
are preset internally and recalled to RAM registers on
power-up. These values can be overwritten by the user
although this is not suggested as the resulting
temperature compensation performance will be
compromised. The compensation function can be
enabled/disabled at any time and can be used in battery
mode as well.
Register Descriptions
The battery-backed registers are accessible following a
slave byte of “1101111x” and reads or writes to addresses
[00h:13h]. The defined addresses and default values are
described in Table 1. The battery backed general purpose
SRAM has a different slave address (1010111x), so it is not
possible to read/write that section of memory while
accessing the registers.
REGISTER ACCESS
The contents of the registers can be modified by performing
a byte or a page write operation directly to any register
address.
The registers are divided into 8 sections. They are:
1. Real Time Clock (7 bytes): Address 00h to 06h.
2. Control and Status (9 bytes): Address 07h to 0Fh.
3. Alarm (6 bytes): Address 10h to 15h.
4. Time Stamp for Battery Status (5 bytes): Address 16h to
1Ah.
5. Time Stamp for VDD Status (5 bytes): Address 1Bh to
1Fh.
6. Day Light Saving Time (8 bytes): 20h to 27h.
7. TEMP (2 bytes): 28h to 29h.
8. Crystal Net PPM Correction, NPPM (2 bytes): 2Ah, 2Bh
9. Crystal Turnover Temperature, XT0 (1 byte): 2Ch
10. Crystal ALPHA at high temperature, ALPHA_H (1 byte):
2Dh
11. Scratch Pad (2 bytes): Address 2Eh and 2Fh
Write capability is allowable into the RTC registers (00h to
06h) only when the WRTC bit (bit 6 of address 08h) is set to
“1”. A multi-byte read or write operation is limited to one
section per operation. Access to another section requires a
new operation. A read or write can begin at any address
within the section.
A register can be read by performing a random read at any
address at any time. This returns the contents of that register
location. Additional registers are read by performing a
sequential read. For the RTC and Alarm registers, the read
instruction latches all clock registers into a buffer, so an
update of the clock does not change the time being read. At
the end of a read, the master supplies a stop condition to
end the operation and free the bus. After a read, the address
remains at the previous address +1 so the user can execute
a current address read and continue reading the next
register.
It is not necessary to set the WRTC bit prior to writing into
the control and status, alarm, and user SRAM registers.
TABLE 1. REGISTER MEMORY MAP (YELLOW SHADING INDICATES READ-ONLY BITS)
ADDR. SECTION
REG
NAME
BIT
RANGE
DEFAULT
7
6543210
00h
RTC
SC
0
SC22
SC21
SC20
SC13
SC12
SC11
SC10
0 to 59
00h
01h
MN
0
MN22
MN21
MN20
MN13
MN12
MN11
MN10
0 to 59
00h
02h
HR
MIL
0
HR21
HR20
HR13
HR12
HR11
HR10
0 to 23
00h
03h
DT
0
0
DT21
DT20
DT13
DT12
DT11
DT10
1 to 31
01h
04h
MO
0
0
0
MO20
MO13
MO12
MO11
MO10
1 to 12
01h
05h
YR
YR23
YR22
YR21
YR20
YR13
YR12
YR11
YR10
0 to 99
00h
06h
DW
0000
0
DW2
DW1
DW0
0 to 6
00h
ISL12022M


类似零件编号 - ISL12022MIBZ

制造商部件名数据表功能描述
logo
Intersil Corporation
ISL12022MIBZ INTERSIL-ISL12022MIBZ Datasheet
387Kb / 27P
   Low Power RTC with Battery Backed SRAM, Integrated 짹5ppm Temperature Compensation, and Auto Daylight Saving
ISL12022MIBZ INTERSIL-ISL12022MIBZ Datasheet
620Kb / 31P
   Low Power RTC with Battery Backed SRAM,Integrated 짹5ppm Temperature Compensation and Auto Daylight Saving
logo
Renesas Technology Corp
ISL12022MIBZ RENESAS-ISL12022MIBZ Datasheet
1Mb / 32P
   Low Power RTC with Battery Backed SRAM, Integrated 짹5ppm Temperature Compensation and Auto Daylight Saving
ISL12022MIBZ RENESAS-ISL12022MIBZ Datasheet
1Mb / 33P
   Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Daylight Saving
Oct 24, 2019
logo
Intersil Corporation
ISL12022MIBZ-T INTERSIL-ISL12022MIBZ-T Datasheet
620Kb / 31P
   Low Power RTC with Battery Backed SRAM,Integrated 짹5ppm Temperature Compensation and Auto Daylight Saving
More results

类似说明 - ISL12022MIBZ

制造商部件名数据表功能描述
logo
Maxim Integrated Produc...
DS3231M MAXIM-DS3231M Datasheet
1Mb / 20P
   짹5ppm, I2C Real-Time Clock
19-5312; Rev 0; 6/10
MAX31343 MAXIM-MAX31343 Datasheet
1Mb / 40P
   짹5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator
2021
logo
Intersil Corporation
ISL12022 INTERSIL-ISL12022 Datasheet
375Kb / 28P
   Real Time Clock with On Chip 짹5ppm Temp Compensation
ISL12021 INTERSIL-ISL12021 Datasheet
311Kb / 24P
   Real Time Clock with On Chip Temp Compensation 짹5ppm
ISL12024IRTCZ INTERSIL-ISL12024IRTCZ Datasheet
359Kb / 24P
   Real-Time Clock/Calendar with Embedded Unique ID
ISL12024IRTC INTERSIL-ISL12024IRTC Datasheet
426Kb / 24P
   Real-Time Clock/Calendar with Embedded Unique ID
December 15, 2011
logo
Renesas Technology Corp
ISL12024 RENESAS-ISL12024 Datasheet
1,018Kb / 25P
   Real-Time Clock/Calendar with Embedded Unique ID
ISL12024IRTC RENESAS-ISL12024IRTC Datasheet
974Kb / 24P
   Real-Time Clock/Calendar with Embedded Unique ID
logo
Intersil Corporation
ISL12024 INTERSIL-ISL12024 Datasheet
395Kb / 25P
   Real-Time Clock/Calendar with Embedded Unique ID
logo
STMicroelectronics
M41TC8025 STMICROELECTRONICS-M41TC8025 Datasheet
187Kb / 8P
   Highly accurate, temperature-compensated serial real-time clock (RTC) with embedded crystal
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


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
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
Family Site : ic2ic.com  |   icmetro.com