DS1372U+ Maxim Integrated Products, DS1372U+ Datasheet - Page 9
![IC BINARY COUNTER 32-BIT 8-USOP](/photos/1/39/13936/406-8-msop_sml.jpg)
DS1372U+
Manufacturer Part Number
DS1372U+
Description
IC BINARY COUNTER 32-BIT 8-USOP
Manufacturer
Maxim Integrated Products
Type
Binary Counterr
Datasheet
1.DS1372U.pdf
(12 pages)
Specifications of DS1372U+
Time Format
Binary
Date Format
Binary
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.4 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Counter Type
Binary Counters
Number Of Bits
32
Counting Sequence
Up/Down
Operating Temperature Range
- 40 C to + 85 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Figure 4. Data Transfer on I
Figure 5. I
conditions. The DS1372 operates as a slave on the I
bus. Connections to the bus are made through the SCL
input and open-drain SDA I/O lines. Within the bus
specifications, a standard mode (100kHz maximum
clock rate) and a fast mode (400kHz maximum clock
rate) are defined. The DS1372 works in both modes.
I
SDA
SCL
SDA
SCL
2
CONDITION
START
C, 32-Bit, Binary Counter Clock with 64-Bit ID
STOP
2
C Data Transfer Overview
t
BUF
START
MSB
_______________________________________________________________________________________
1
2
C Serial Bus
t
HD:STA
2
t
LOW
SLAVE ADDRESS
t
R
6
t
HD:DAT
7
t
F
DIRECTION
t
HIGH
R/W
BIT
8
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
2
C
t
SU:DAT
ACK
9
The following bus protocol has been defined (Figure 5):
• Data transfer can be initiated only when the bus is
• During data transfer, the data line must remain stable
not busy.
whenever the clock line is high. Changes in the data
line while the clock line is high are interpreted as
control signals.
REPEATED
START
1
t
SU:STA
t
HD:STA
2
REPEATED IF MORE BYTES
ARE TRANSFERED
3–7
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
8
ACK
9
t
SP
t
SU:STO
OR REPEATED
CONDITION
CONDITION
START
STOP
9