DS12C887 Maxim Integrated Products, DS12C887 Datasheet - Page 5

• 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

RESET
IRQ
DS
AD0–AD7
R/W
AS
DS
CS
IRQ Release Delay Timing
t
t
IRDS
ASD
OUTPUTS
INPUTS
V
V
PF(MAX)
PF(MIN)
V
CC
t
ASD
RECOGNIZED
VALID
PW
_____________________________________________________________________
ASH
t
PW
F
t
ASL
EL
t
t
IRR
RWL
t
t
ASED
CS
t
AHL
DON'T CARE
HIGH-Z
t
CYC
t
DR
Power-Up/Power-Down Timing
t
DDR
PW
Real-Time Clocks
EH
Intel Bus Read Timing
t
R
RECOGNIZED
t
VALID
RPU
t
DHR
t
CH
5