DS1554 Maxim, DS1554 Datasheet - Page 11

• Manufacturer Part Number: DS1554
• Description: The DS1554 is a full-function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and 32k x 8 nonvolatile static RAM
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground………………………..…………………………………………..-0.3V to +6.0V
Storage Temperature Range
Lead Temperature (soldering, 10s) ......................................................................................................................................+260°C
Soldering Temperature (reflow, PowerCap)…………………………………...……………..............................................+260°C
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
OPERATING RANGE
RECOMMENDED DC OPERATING CONDITIONS
(T
DC ELECTRICAL CHARACTERISTICS
(V
Logic 1 Voltage All Inputs
(Note 1)
Logic 0 Voltage All Inputs
(Note 1)
Active Supply Current
TTL Standby Current
(CE = V
CMOS Standby Current
(CE V
Input Leakage Current
(Any Input)
Output Leakage Current
(Any Output)
Output Logic 1 Voltage
(I
Output Logic 0 Voltage
Write Protection Voltage
Battery Switchover Voltage
A
CC
OUT
= Over the operating range)
= 5.0V 10%, T
= -1.0 mA)
PARAMETER
PARAMETER
EDIP ......................………………………………………………………………………………………-40°C to +85°C
PowerCap...................…………………..…………………………………………………....................-55°C to +125°C
Note: EDIP is wave or hand-soldered only.
CC
IH
Commercial
)
Industrial
RANGE
- 0.2V)
A
= Over the operating range.)
V
SYMBOL
SYMBOL
SO
V
V
V
V
V
I
I
V
V
V
I
I
CC1
CC2
I
CC
OL
OL1
OL2
IL
OH
IH
IH
IL
IL
PF
TEMP RANGE
-40°C to +85°C
V
V
(Notes 2, 3, 11)
DQ0–7 Outputs
(Note 1)
Outputs (Notes 1, 5)
(Note 1)
V
V
(Notes 2, 3)
(Notes 2, 3)
(Note 1)
I
I
(Notes 1, 4)
0°C to +70°C
IRQ
OUT
OUT
CC
CC
CC
CC
CONDITIONS
CONDITIONS
= 5V 10%
= 3.3V 10%
= 5V 10%
= 3.3V 10%
/FT, and
= 2.1 mA,
= 7.0 mA,
DS1554 256k, Nonvolatile, Y2K-Compliant Timekeeping RAM
11 of 18
RST
MIN
MIN
4.20
-0.3
-0.3
2.2
2.0
2.4
-1
-1
3.3V 10% or 5V 10%
3.3V 10% or 5V 10%
TYP
TYP
V
40
BAT
3
2
V
MAX
V
V
MAX
CC
0.3V
0.3V
+0.8
+0.6
4.50
0.4
0.4
+1
+1
CC
CC
75
6
6
+
+
UNITS
UNITS
mA
mA
mA
A
A
V
V
V
V
V
V
V