MAX6909EO33 Maxim Integrated, MAX6909EO33 Datasheet - Page 7

• Manufacturer Part Number: MAX6909EO33
• Description: Real Time Clock
• Manufacturer: Maxim Integrated
• Series: MAX6909, MAX6910r

Specifications of MAX6909EO33

• Function: Clock, Calendar, Watchdog Timekeeper, NV SRAM Control
• Rtc Bus Interface: Serial
• Time Format: HH
• Rtc Memory Size: 31 B
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: QSOP-20

(V
CC
3.100
3.095
3.090
3.085
3.080
3.075
3.070
3.065
3.060
3.055
3.050
220
215
210
205
200
195
190
185
180
100
90
80
70
60
50
= 3.3V, V
-40
-40
-40
RESET THRESHOLD vs. TEMPERATURE
-25
V
V
I
-25 -10
OUT
CC
BATT
-15
= 3V
= 100mA
RESET TIMEOUT PERIOD
BATT
-10
= 0V
V
CC
vs. TEMPERATURE
vs. TEMPERATURE
TEMPERATURE (°C)
I
TEMPERATURE (°C)
TEMPERATURE (°C)
TO OUT VOLTAGE
5
2
= 3V, T
5
10
_______________________________________________________________________________________
C-Compatible Real-Time Clocks with µP
20
20
V
V
I
OUT
CC
BATT
35
A
35
35
= 3.3V
= 100mA
= +25°C, unless otherwise noted.)
= 0V
50
50
60
65
65
Supervisor and NV RAM Controller
80
80
85
1.244
1.243
1.242
1.241
1.240
1.239
1.238
1.237
1.236
1.235
1.234
1000
100
350
300
250
200
150
100
0.1
10
1
-40
-40
0.1
PFI THRESHOLD vs. TEMPERATURE
-25
RESET COMPARATOR DELAY
-15
V
V
I
OUT
BATT-TO-OUT VOLTAGE
BATT
CC
-10
1
vs. TEMPERATURE
= 0V
= 50mA
vs. V
V
= 2V
TEMPERATURE (°C)
TEMPERATURE (°C)
CC
5
10
FALLING (V/ms)
CC
20
10
FALLING
Typical Operating Characteristics
V
V
I
OUT
35
35
BATT
CC
= 0V
= 50mA
= 3.0V
50
100
60
65
80
1000
85
100
0.1
700
650
600
550
500
450
400
10
25
24
23
22
21
20
19
18
17
16
15
1
-40
-40
1
V
V
CRYSTAL FAIL-DETECTION DISABLED
V
PFI-TO-PFO DELAY vs. PFI FALLING
BATT
CC
CC
-25
BATT TIMEKEEPING CURRENT
= 0V
FALLING AT 10V/ms
RESET COMPARATOR DELAY
= 3V
-15
-10
vs. TEMPERATURE
vs. TEMPERATURE
TEMPERATURE (°C)
PFI FALLING (V/ms)
TEMPERATURE (°C)
10
5
10
20
35
35
100
50
60
65
80
1000
85
7