Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

DS1372 Datasheet(PDF) 8 Page - Maxim Integrated Products

Part # DS1372
Description  I2C, 32-Bit, Binary Counter Clock with 64-Bit ID
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1372 Datasheet(HTML) 8 Page - Maxim Integrated Products

Back Button DS1372 Datasheet HTML 4Page - Maxim Integrated Products DS1372 Datasheet HTML 5Page - Maxim Integrated Products DS1372 Datasheet HTML 6Page - Maxim Integrated Products DS1372 Datasheet HTML 7Page - Maxim Integrated Products DS1372 Datasheet HTML 8Page - Maxim Integrated Products DS1372 Datasheet HTML 9Page - Maxim Integrated Products DS1372 Datasheet HTML 10Page - Maxim Integrated Products DS1372 Datasheet HTML 11Page - Maxim Integrated Products DS1372 Datasheet HTML 12Page - Maxim Integrated Products  
Zoom Inzoom in Zoom Outzoom out
 8 / 12 page
background image
Status Register (08h)
Bit 7: Oscillator Stop Flag (OSF). A logic 1 in this bit
indicates that the oscillator either is stopped or was
stopped for some period of time and may be used to
judge the validity of the timekeeping data. This bit is set
to logic 1 anytime the oscillator stops. The following are
examples of conditions that can cause the OSF bit to
be set:
1) The first time power is applied.
2) The voltage present on VCC is insufficient to sup-
port oscillation.
3) The EOSC bit is turned off.
4) External influences on the crystal (i.e., noise, leak-
age, etc.) exist.
This bit remains at logic 1 until written to logic 0.
Bits 6 to 1: These bits always read back as logic 0.
Bit 0: Alarm Flag (AF). A logic 1 in the AF bit indicates
that the alarm counter reached zero. If the AIE and
INTCN bits are both set to logic 1, the SQW/INT pin
goes low and remains low until AF is written to logic 0.
This bit can only be written to logic 0. Attempting to
write logic 1 leaves the value unchanged.
ID Register
A unique 64-bit lasered serial number is located in the
address range 09h–10h. This serial number is divided
into three parts. The first byte in register 09h contains a
model number to identify the DS1372 device type.
Registers 0Ah–0Fh contain a unique binary number.
Register 10h contains a CRC byte used to validate the
data in registers 09h–0Fh. All eight bytes of the serial
number are read-only registers. The CRC byte is gener-
ated with the polynomial equal to x8 + x5 + x4 + 1 (see
Figure 3).
The DS1372 is manufactured such that no two devices
contain an identical number in locations 0Ah–0Fh.
I2C Serial Data Bus
The DS1372 supports a bidirectional I2C serial bus and
data transmission protocol (Figure 4). A device that
sends data onto the bus is defined as a transmitter,
and a device receiving data is defined as a receiver.
The device that controls the message is called a mas-
ter. The devices that are controlled by the master are
slaves. The bus must be controlled by a master device
that generates the serial clock (SCL), controls the
bus access, and generates the START and STOP
8
_______________________________________________________________________________________
Bit #
7
6
5
4
3
2
1
0
Name
OSF
0
0
0
0
0
0
AF
Reset
1
0
0
0
0
0
0
0
Status Register (08h)
1ST
STAGE
2ND
STAGE
3RD
STAGE
4TH
STAGE
7TH
STAGE
8TH
STAGE
6TH
STAGE
5TH
STAGE
X0
X1
X2
X3
X4
POLYNOMIAL = X8 + X5 + X4 + 1
INPUT DATA
X5
X6
X7
X8
Figure 3. CRC Byte Polynomial
I2C, 32-Bit, Binary Counter Clock with 64-Bit ID


Similar Part No. - DS1372

ManufacturerPart #DatasheetDescription
logo
Maxim Integrated Produc...
DS1371 MAXIM-DS1371 Datasheet
966Kb / 14P
   2-Wire, 32-Bit Binary Counter Watchdog Clock
DS1371U MAXIM-DS1371U Datasheet
966Kb / 14P
   2-Wire, 32-Bit Binary Counter Watchdog Clock
logo
Dallas Semiconductor
DS1371U DALLAS-DS1371U Datasheet
498Kb / 15P
   I2C, 32-Bit Binary Counter
DS1371U++ DALLAS-DS1371U+ Datasheet
498Kb / 15P
   I2C, 32-Bit Binary Counter
DS1371 DALLAS-DS1371_07 Datasheet
498Kb / 15P
   I2C, 32-Bit Binary Counter
More results

Similar Description - DS1372

ManufacturerPart #DatasheetDescription
logo
Dallas Semiconductor
DS1371 DALLAS-DS1371_07 Datasheet
498Kb / 15P
   I2C, 32-Bit Binary Counter
logo
Maxim Integrated Produc...
DS1672 MAXIM-DS1672_11 Datasheet
197Kb / 15P
   I2C 32-Bit Binary Counter RTC
Rev 9/11
DS1672 MAXIM-DS1672 Datasheet
514Kb / 15P
   I2C 32-Bit Binary Counter RTC
REV: 031406
DS1371 MAXIM-DS1371 Datasheet
966Kb / 14P
   2-Wire, 32-Bit Binary Counter Watchdog Clock
logo
Fairchild Semiconductor
DM74LS193 FAIRCHILD-DM74LS193 Datasheet
74Kb / 7P
   Synchronous 4-Bit Binary Counter with Dual Clock
logo
Maxim Integrated Produc...
DS1374 MAXIM-DS1374_10 Datasheet
273Kb / 18P
   I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
Rev 4; 8/10
DS1374 MAXIM-DS1374 Datasheet
292Kb / 17P
   I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
Rev 3; 1/06
logo
Hitachi Semiconductor
HD14040B HITACHI-HD14040B Datasheet
79Kb / 7P
   12-bit Binary Counter
logo
NXP Semiconductors
74F161A PHILIPS-74F161A Datasheet
111Kb / 14P
   4-bit binary counter
1996 Jan 29
logo
Hitachi Semiconductor
HD14020B HITACHI-HD14020B Datasheet
80Kb / 7P
   14-bit Binary Counter
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


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
Family Site : ic2ic.com  |   icmetro.com