DS1344E-33+ Maxim Integrated Products, DS1344E-33+ Datasheet - Page 7

• Manufacturer Part Number: DS1344E-33+
• Description: Real Time Clock SPI RTC 20P TSSOP 3.3V 12.5PF ALRM
• Manufacturer: Maxim Integrated Products

(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
600
500
400
300
200
100
280
260
240
220
200
180
160
140
0
3.0
1.0
T
CE = V
I
EGFIL = 0
DOSF = 1
I
OUT
OUT
A
1.5
= +25°C
vs. POWER-SUPPLY VOLTAGE
= 0mA
f
= 0mA
SCLK
POWER-SUPPLY CURRENT
T
IH
3.5
A
2.0
vs. BATTERY VOLTAGE
= +25°C
BATTERY CURRENT1
= 4MHz
BATTERY VOLTAGE (V)
SUPPLY VOLTAGE (V)
2.5
T
A
4.0
= -40°C
3.0
3.5
4.5
T
4.0
f
SCLK
A
= +85°C
4.5 5.0
= 1MHz
5.0
Low-Current SPI/3-Wire RTCs
5.5
5.5
Typical Operating Characteristics
140
130
120
110
100
340
320
300
280
260
240
220
200
180
90
80
70
60
3.0
1.0
CE = V
I
EGFIL = 1
DOSF = 0
I
OUT
OUT
1.5 2.0 2.5
vs. POWER-SUPPLY VOLTAGE
= 0mA
= 0mA
POWER-SUPPLY CURRENT
IL
3.5
vs. BATTERY VOLTAGE
BATTERY CURRENT2
T
BATTERY VOLTAGE (V)
SUPPLY VOLTAGE (V)
A
T
A
= +25°C
= +85°C
4.0
T
3.0
A
= -40°C
T
A
3.5
= -40°C
4.5
T
4.0
A
T
= +85°C
A
= +25°C
4.5
5.0
5.0
5.5
5.5
7