DS1557 Maxim, DS1557 Datasheet - Page 10

• Manufacturer Part Number: DS1557
• Description: The DS1557 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 512k 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…………...………………………………………………………….....……..-55°C to +125°C
Lead Temperature (soldering, 10s).....................................................................................................…………+260°C
Soldering Temperature (reflow)………………………………………………………………………………………. +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 ± 1 0%, T
= -1.0 mA)
PARAMETER
PARAMETER
IH
CC
)
Commercial
- 0.2V)
Industrial
RANGE
A
= Over the Operating Range.)
SYMBOL
SYMBOL
V
V
V
I
I
V
V
V
V
V
V
I
I
I
CC1
CC2
CC
OL
OL1
OL2
IL
OH
SO
IH
IH
PF
IL
IL
-40°C to +85°C
TEMP RANGE
V
V
V
V
(Notes 2, 3, 11)
(Notes 2, 3)
(Notes 2, 3)
(Note 1)
I
DQ0–7 Outputs
(Note 1)
I
IRQ/FT, and RST
Outputs
(Notes 1, 5)
(Note 1)
(Notes 1, 4)
OUT
OUT
0°C to +70°C
CC
CC
CC
CC
CONDITIONS
CONDITIONS
= 5V 10%
= 3.3V 10%
= 5V 10%
= 3.3V 10%
= 2.1 mA,
= 7.0 mA,
10 of 17
MIN
-0.3
-0.3
MIN
2.2
2.0
4.20
2.4
-1
-1
TYP
3.3V 10% or 5V 10%
3.3V 10% or 5V 10%
TYP
V
45
3
2
BAT
MAX
V
V
0.3V
0.3V
+0.8
+0.6
MAX
V
CC
CC
4.50
0.4
0.4
90
+1
+1
CC
6
6
+
+
UNITS
UNITS
mA
mA
mA
A
A
V
V
V
V
V
V
V