DS12C887A+ Maxim Integrated Products, DS12C887A+ Datasheet - Page 7
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DS12C887A+
Manufacturer Part Number
DS12C887A+
Description
IC RTC W/RAM 128 BYTE 24-EDIP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAMr
Datasheet
1.DS12885N.pdf
(22 pages)
Specifications of DS12C887A+
Memory Size
113B
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
24-DIP (600 mil) Module
Function
Clock/Calendar/Alarm
Rtc Memory Size
113 Byte
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Rtc Bus Interface
Multiplexed
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
(V
CC
= +5.0V, T
250
200
300
150
2.5
+70°C
A
V
CC
= +25°C, unless otherwise noted.)
= 0V
2.8
AD0–AD7
-40°C
RESET
RLCR
vs. TEMPERATURE
GND
V
MOT
V
R/W
BAT
3.0
CS
DS
CC
AS
I
X1
X2
BAT1
V
BAT
vs. V
3.3
+40°C
(V)
INTERFACE
BAT
+85°C
CONTROL
POWER
3.5
OSC
BUS
0°C
3.8
+25°C
_____________________________________________________________________
4.0
DIVIDE
CLOCK/CALENDAR
BY 8
UPDATE LOGIC
DS12885
Typical Operating Characteristics
DIVIDE
BY 64
16:1 MUX
32768.30
32768.70
32768.60
32768.50
32768.40
32768.20
32768.10
32768.00
CALENDAR AND ALARM
CLOCK/CALENDAR AND
REGISTERS A, B, C, D
BUFFERED CLOCK/
ALARM REGISTERS
Real-Time Clocks
REGISTERS
USER RAM
114 BYTES
4.5
GENERATOR
GENERATOR
SQUARE-
DIVIDE
BY 64
WAVE
IRQ
OSCILLATOR FREQUENCY
4.8
Functional Diagram
vs. V
V
CC
5.0
SQW
(V)
IRQ
CC
5.3
5.5
7