DS1338U-3 Maxim Integrated Products, DS1338U-3 Datasheet - Page 14
![IC RTC 56BYTE NV RAM 3V 8-USOP](/photos/1/39/13936/406-8-msop_sml.jpg)
DS1338U-3
Manufacturer Part Number
DS1338U-3
Description
IC RTC 56BYTE NV RAM 3V 8-USOP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAMr
Datasheet
1.DS1338Z-33.pdf
(16 pages)
Specifications of DS1338U-3
Memory Size
56B
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 3.3 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1338U-3+
Manufacturer:
KEMET
Quantity:
12 000
Part Number:
DS1338U-3.3
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
DS1338U-33
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
DS1338U-33+
Manufacturer:
Renesas
Quantity:
37
Part Number:
DS1338U-33+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
DS1338U-33+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
DS1338U-33+T&R
Manufacturer:
MAXIM
Quantity:
384
Part Number:
DS1338U-33+T&R
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
DS1338U-33+TR
Manufacturer:
MAXIM
Quantity:
140
Company:
Part Number:
DS1338U-33+TR
Manufacturer:
DALLAS45
Quantity:
400
Figure 6. Data Write—Slave Receiver Mode
Figure 7. Data Read (From Current Pointer Location)—Slave Transmitter Mode
Figure 8. Data Read (Write Pointer, Then Read—Slave Receive and Transmit
S - START
A - ACKNOWLEDGE (ACK)
P - STOP
S
S - START
A - ACKNOWLEDGE (ACK)
P - STOP
A
- NOT ACKNOWLEDGE (NACK)
S
<Slave Address>
<Slave Address>
1101000
1101000
A - NOT ACKNOWLEDGE (NACK)
S - START
SR - REPEATED START
A - ACKNOWLEDGE (ACK)
P - STOP
XXXXXXXX
S
<Data (n)>
0
1101000
1
A
A
<Word Address (n)>
XXXXXXXX
SLAVE TO MASTER
MASTER TO SLAVE
XXXXXXXX
A
<Data (n)>
0
XXXXXXXX A XXXXXXXX A
<Data (n+1)>
SLAVE TO MASTER
MASTER TO SLAVE
A
<Word Address (n)>
XXXXXXXX
A
SLAVE TO MASTER
MASTER TO SLAVE
A
XXXXXXXX A XXXXXXXX A
<Data (n)>
XXXXXXXX A XXXXXXXX
<Data (n+1)>
14 of 16
<Data (n+2)>
A
Sr
NOTE: LAST DATA BYTE IS FOLLOWED BY A NACK
(X+1 BYTES + ACKNOWLEDGE)
<Slave Address>
DATA TRANSFERRED
1101000
<Data (n+1)>
(X+1 BYTES + ACKNOWLEDGE)
<Data (n+2)>
NOTE: LAST DATA BYTE IS FOLLOWED BY A NACK
...
DATA TRANSFERRED
1
XXXXXXXX A P
DS1338 I
<Data (n+X)>
A
(X+1 BYTES + ACKNOWLEDGE)
A
DATA TRANSFERRED
...
...
2
XXXXXXXX A P
C RTC with 56-Byte NV RAM
<Data (n+X)>
XXXXXXXX A P
<Data (n+X)>