DS1338U-33+ Maxim Integrated Products, DS1338U-33+ Datasheet - Page 3

• Manufacturer Part Number: DS1338U-33+
• Description: IC RTC 56BYTE NV RAM 3.3V 8-USOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAMr

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

DC ELECTRICAL CHARACTERISTICS
(V
otherwise noted.) (Note 1)
AC ELECTRICAL CHARACTERISTICS
(V
SCL Clock Frequency
Bus Free Time Between STOP
and START Condition
Hold Time (Repeated) START
Condition (Note 8)
LOW Period of SCL Clock
HIGH Period of SCL Clock
Setup Time for Repeated
START Condition
Data Hold Time (Notes 9, 10)
Data Setup Time (Note 11)
Rise Time of Both SDA and
SCL Signals (Note 12)
Fall Time of Both SDA and
SCL Signals (Note 12)
Setup Time for STOP
Condition
Capacitive Load for Each Bus
Line
I/O Capacitance (SDA, SCL)
Oscillator Stop Flag (OSF)
Delay
V
V
(Note 7)
V
CC
CC
BAT
BAT
BAT
= 0V, T
= V
Current (OSC ON); V
Current (OSC ON); V
Data-Retention Current (Osc Off); V
CC(MIN)
PARAMETER
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
to V
CC(MAX)
, T
PARAMETER
BAT
BAT
A
= -40°C to +85°C) (Note 1)
= 3.7V, SQW/OUT OFF (Note 7)
= 3.7V, SQW/OUT ON (32kHz)
SYMBOL
t
t
t
t
t
HD:STA
SU:STA
HD:DAT
SU:DAT
SU:STO
t
t
t
f
t
C
HIGH
LOW
C
OSF
SCL
BUF
t
t
R
F
I/O
B
BAT
= 3.7V (Note 7)
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
(Note 12)
(Note 13)
(Note 14)
CONDITION
3 of 16
SYMBOL
I
I
I
BATOSC1
BATOSC2
BATDAT
20 + 0.1C
20 + 0.1C
20 + 0.1C
20 + 0.1C
DS1338 I
MIN
100
100
250
1.3
0.6
1.3
0.6
0.6
0.6
4.7
4.0
4.7
4.0
4.7
4.0
0
0
0
BAT
MIN
B
B
B
B
= 3.0V, T
2
C RTC with 56-Byte NV RAM
TYP
100
1025
TYP
800
10
A
= +25°C, unless
MAX
1000
400
100
300
300
300
400
0.9
MAX
1200
1400
10
100
UNITS
UNITS
kHz
ms
pF
pF
nA
nA
nA
s
s
s
s
s
s
ns
ns
ns
s