MAX6909EO33 Maxim Integrated, MAX6909EO33 Datasheet - Page 3

• 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

ELECTRICAL CHARACTERISTICS (continued)
(V
OUT in V
V
Threshold
V
Threshold
CE IN AND CE OUT
CE IN Leakage Current
CE IN to CE OUT Resistance
CE IN to CE OUT Propagation
Delay
RESET (or RESET) Active to
CE OUT disabled and pulled to
V
CE OUT Enabled and Connected
to CE IN After V
CE OUT High (RESET or RESET
Active)
MANUAL RESET INPUT
MR Input Threshold
MR Internal Pullup Resistance
MR Minimum Pulse Width
MR Glitch Immunity
MR to Reset Delay
POWER-FAIL INPUT AND POWER-FAIL OUTPUT
PFI Input Threshold
CC
BATT
CC
OUT
= V
to V
Delay
to V
CC(MIN)
BATT
CC
PARAMETER
CC
Mode (Note 4)
Switchover
Switchover
CC
to V
I
2
> V
_______________________________________________________________________________________
CC(MAX)
C-Compatible Real-Time Clocks with µP
RST
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
SYMBOL
Supervisor and NV RAM Controller
V
V
V
t
V
V
RCE
V
t
V
OUT
TRU
TRD
RP
PFT
OH
IH
IL
V
V
Power-up (V
to V
Power-down (V
to V
Disabled, V
or GND
V
V
50Ω source impedance driver,
C
V
measured from 50% point on CE IN to the
50% point on CE OUT
MR low to high, V
V
(Note 8)
(Note 8)
V
CC
CC
CC
IL
IH
CC
CC
LOAD
= 0.1V
CC
BATT
= 0.9V
= 3.0V, V
= 2.7V, V
= V
= 0V, I
= V
(Note 7)
= 10pF, V
CC(min)
CC(MIN)
(Note 7)
CC
CC
OUT
CC
CC
, V
BATT
BATT
< V
CONDITIONS
CC
, V
< V
IL
= -100µA, V
CC
CC(MIN)
IH
= 0.1 V
RST
< V
RST
= 0V, I
= 0V, I
= 0.9V
= V
RST
, V
) switch from V
CC(MIN)
C E IN
CC
) switch from V
< V
OUT
OUT
CC
BATT
(Note 8),
CC
,
= 100mA
= 50mA
= V
,
< V
= 2V
CC
CC(MAX)
BATT
CC
0.95 x
V
V
V
0.7 ×
0.15
1.19
MIN
V
140
CC
0.1
CC
OUT
-1
A
2
CC
1
= +25°C.) (Notes 1, 2)
–
-
+ 0.05
V
V
V
V
- 0.05
TYP
0.05
1.27
200
200
BATT
BATT
0.1
CC
CC
70
10
50
5
-
-
MAX
0.3 ×
V
1.31
140
280
350
+1
15
50
50
CC
UNITS
µA
ms
kΩ
ns
µs
µs
ns
ns
Ω
V
V
V
V
V
V
3