NS32FX211 Datasheet, PDF (1/12 Pages) National Semiconductor (TI) – Microprocessor Compatible Real Time C

May 1993
NS32FX211 Microprocessor Compatible Real Time Clock
General Description
The NS32FX211 is fabricated using low threshold CMOS
technology and is designed to operate in bus oriented mi-
croprocessor systems where a real time clock and calendar
function are required The on-chip 32 768 kHz crystal con-
trolled oscillator will maintain timekeeping down to 2 2V to
allow low power standby battery operation
Applications
Y _{Fax machines}
Y _{Laser printers}
Y _{Word processors}
Y _{Data logging}
Y _{Industrial process control}
Features
Y _{Low power standby operation (10 mA at 2 2V)}
Y _{16-pin DIP and 20-pin PLCC}
Y _{Timekeeping from tenths to seconds to tens of years in}
independently accessible registers
Y _{Leap year register}
Y _{Hours counter programmable for 12 or 24-hour}
operation
Y _{Fully TTL CMOS compatible}
Connection Diagrams
Dual-In-Line Package
PCC Package
Top View
TL F 11011 – 1
FIGURE 1
Order Number NS32FX211N NS32FX211V
See NS Package Number N16A or V20A
TL F 11011 – 2
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 11011
RRD-B30M105 Printed in U S A