Company Name: Excellent Integrated System LIMITED

Contact Person : John

Email/Msn     :John(at)eis-ic.com

Tel: 00852-30777742

Add.: RM 906, WORKINGBERG COMM BLDG, 41-47 MARBLE RD, HONGKONG

Excellent Integrated System LIMITED (EIS LIMITED), Established in 1991, is a professional independent stocking distributor of electronic components and specialize in buying the EXCESS STOCK from the original equipment manufacturers (OEMs), Contract equipment manufacturers (CEMs), and many other factories. EIS has gained good experiences in Excess Inventory Management through its development over 20 years and has become the reliable partner for the domestic and foreign OEM manufacturers. If any inquiry and question,please email us: john(at)eis-ic.com.

Description as follow:

The MM58167BN is a low threshold metal gate CMOS circuit that functions as a real time clock in bus oriented microprocessor systems. The device includes an addressable real time counter, 56 bits of RAM, and two interrupt outputs.

Parametrics

Absolute maximum ratings: (1)Voltage at All Pins:VSS-0.3V to VDD+0.3V; (2)Operating Temperature:0℃ to 70℃; (3)Storage Temperature:-65℃ to +150℃; (4)VDD-VSS:6.0V; (5)Lead Temperature (Soldering, 10 sec.):300℃.

Features

Features: (1)Microprocessor compatible (8-bit data bus); (2)Milliseconds through month counters; (3)56 bits of RAM with comparator to compare the real time counter to the RAM data; (4)2 INTERRUPT OUTPUTS with 8 possible interrupt signals; (5)POWER DOWN input that disables all inputs and outputs except for one of the interrupts; (6)Status bit to indicate rollover during a read; (7)32.768 kHz crystal oscillator; (8)Four-year calendar (no leap year); (9)24-hour clock.

Diagrams