DS12C887 Maxim Integrated Products, DS12C887 Datasheet - Page 4

• Manufacturer Part Number: DS12C887
• Description: IC RTC W/RAM 128 BYTE 24-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAMr

Specifications of DS12C887

• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Real-Time Clocks
4
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AD0–AD7
WRITE
R/W
AS
DS
CS
AD0–AD7
AD0–AD7
WRITE
READ
R/ W
AS
DS
CS
t
ASD
t
t
ASD
ASD
t
ASL
PW
ASH
PW
PW
EL
PW
ASH
EL
t
ASL
t
CS
t
t
CS
ASED
t
AHL
t
t
t
AHL
ASED
CYC
t
CYC
Motorola Bus Read/Write Timing
t
RWS
t
DDR
PW
PW
t
DSW
EH
EH
t
DSW
Intel Bus Write Timing
t
t
CH
RWH
t
t
DHW
DHR
t
t
CH
DHW