DatasheetsPDF.com

MM58167B

Part Number	MM58167B
Manufacturer	National
Description	Microprocessor Real Time Clock
Published	May 9, 2005
Detailed Description	MM58167B Microprocessor Real Time Clock October 1990 MM58167B Microprocessor Real Time Clock General Description The M...
Datasheet	MM58167B PDF File

Overview

MM58167B Microprocessor Real Time Clock October 1990 MM58167B Microprocessor Real Time Clock General Description The MM58167B 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 A POWER DOWN input allows the chip to be disabled from the rest of the system for standby low power operation The time base is a 32 768 kHz crystal oscillator Y Y Y Y Y Y Features Y Y Y 56 bits of RAM with comparator to compare the real time counter to the RAM data 2 INTERRUPT OUTPUTS with 8 possible interrupt signals POWER DOWN input that disables all inputs and outputs except for one of the interrupts Status bit to indicate rollover during a read 32 768 kHz crystal oscillator Four-year calendar (no leap year) 24-hour clock Microprocessor compatible (8-bit data bus) Milliseconds through month counters Connection Diagrams Dual-In-Line Package PCC Package TL F 11070 – 1 Top View Order Number MM58167BN See NS Package Number N24A TL F 11070 – 2 Top View Order Number MM58167BV See NS Package Number V28A TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 11070 RRD-B30M105 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage at All Pins Operating Temperature VSS b 0 3V to VDD a 0 3V 0 C to 70 C Storage Temperature VDDbVSS Lead Temperature (Soldering 10 sec ) b 65 C to a 150 C 6 0V 300 C Electrical Characteristics VSS e 0V Parameter Supply Voltage VDD VDD Supply Current IDD Dynamic 0 C s TA s 70 C Min 45 22 Max 55 55 Units V V Conditions Outputs Enabled POWER DOWN Mode Outputs TRI-STATE fIN e 32 768 kHz VDD e 5 5V VIH t VDD b 0 3V VIL s VSS a 0 3V Outputs TRI-STATE fIN e 32 768 kHz VDD e 5 5V VIH e 2 0...

Similar Datasheet

MM58167B Microprocessor Real Time Clock - National

@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)