DS1338U-33+ Maxim Integrated Products, DS1338U-33+ Datasheet - Page 5
![IC RTC 56BYTE NV RAM 3.3V 8-USOP](/photos/1/39/13936/406-8-msop_sml.jpg)
DS1338U-33+
Manufacturer Part Number
DS1338U-33+
Description
IC RTC 56BYTE NV RAM 3.3V 8-USOP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAMr
Datasheet
1.DS1338Z-33.pdf
(16 pages)
Specifications of DS1338U-33+
Memory Size
56B
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
I²C, 2-Wire Serial
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Function
Clock/Calendar
Rtc Memory Size
56 Byte
Supply Voltage (max)
5.5 V
Supply Voltage (min)
3 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial (I2C)
Supply Current
325 uA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 2. Timing Diagram
Figure 3. Block Diagram
"C" VERSION ONLY
GND
V
SDA
V
SCL
BAT
CC
X1
X2
AND ADDRESS
C
C
SERIAL BUS
INTERFACE
REGISTER
CONTROL
L
L
POWER
and divider
Oscillator
1Hz/4.096kHz/8.192kHz/32.768kHz
CONTROL
DS1338
5 of 16
LOGIC
1Hz
AND CONTROL
USER BUFFER
DS1338 I
CALENDAR,
REGISTERS
BUFFER
(7 BYTES)
CLOCK,
MUX/
(56 X 8)
RAM
2
C RTC with 56-Byte NV RAM
N
SQW/OUT