CMOS Serial Real-Time Clock With RAM And Power Sense/Control

The CDP68HC68T1 Real-Time Clock provides a time/calendar function, a 32 byte static RAM, and a 3 wire Serial Peripheral Interface (SPI Bus). The primary function of the Clock is to divide down a frequency input that CAN be supplied by the on-board Oscillator in conjunction with an external crystal or by an external Clock source. The internal Oscillator CAN operate with a 32kHz, 1MHz, 2MHz, or 4MHz crystal. An external Clock source with a 32kHz, 1MHz, 2MHz, 4MHz, 50Hz or 60Hz frequency CAN be used to drive the CDP68HC68T1. The time Registers hold seconds, minutes, and hours, while the calendar Registers hold day-of-week, date, month, and year information. The data is stored in BCD format. In addition, 12 or 24 hour operation CAN be selected. In 12 hour mode, an AM/PM indicator is provided. The T1 has a programmable output which CAN provide one of seven outputs for use elsewhere in the system.
Computer handshaking is controlled with a wired-OR interrupt output. The interrupt CAN be programmed to provide a signal as the result of: An alarm programmed to occur at a predetermined combination of seconds, minutes, and hours. One of 15 periodic interrupts ranging from sub-second to once per day frequency. A power fail detect. The PSE output and the VSYS input are used for external power control. The CPUR output is available to reset the processor under power-down conditions. CPUR is enabled under software control and CAN also be activated via the CDP68HC68T1s watchdog. If enabled, the watchdog requires a periodic toggle of the CE pin without a serial transfer.
By Intersil Corporation
Part Manufacturer Description Datasheet Samples
CDP68HC68T1D Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, CDIP16, SIDE BRAZED, METAL SEALED, CERAMIC, DIP-16, Timer or RTC
CDP68HC68T1DX Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, CDIP16, Timer or RTC
CDP68HC68T1M96 Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, PDSO20, PLASTIC, MS-013AC, SOIC-20, Timer or RTC
CDP68HC68T1W Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, UUC, DIE, Timer or RTC
CDP68HC68T1MZ96 Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, PDSO20, ROHS COMPLIANT, PLASTIC, MS-013AC, SOIC-20, Timer or RTC
CDP68HC68T1M2Z96 Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, PDSO16, ROHS COMPLIANT, PLASTIC, MS-013AA, SOIC-16, Timer or RTC
CDP68HC68T1M2 Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, PDSO16, PLASTIC, MS-013AA, SOIC-16, Timer or RTC
CDP68HC68T1M296 Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, PDSO16, PLASTIC, MS-013AA, SOIC-16, Timer or RTC
CDP68HC68T1E Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, PDIP16, PLASTIC, MS-001BB, DIP-16, Timer or RTC
CDP68HC68T1MZ Intersil Corporation IC 1 TIMER(S), REAL TIME CLOCK, PDSO20, ROHS COMPLIANT, PLASTIC, MS-013AC, SOIC-20, Timer or RTC
CDP68HC68T1 's PackagesCDP68HC68T1 's pdf datasheet
CDP68HC68T1E PDIP
CDP68HC68T1EZ PDIP
CDP68HC68T1M SOIC
CDP68HC68T1M2 SOIC
CDP68HC68T1M296 SOIC
CDP68HC68T1M2Z SOIC
CDP68HC68T1M2Z96 SOIC
CDP68HC68T1M96 SOIC
CDP68HC68T1MZ SOIC
CDP68HC68T1MZ96 SOIC
CDP68HC68T1W

CDP68HC68T1 pdf datasheet download


CDP68HC68T1 Pinout, Pinouts
CDP68HC68T1 pinout,Pin out
This is one package pinout of CDP68HC68T1,If you need more pinouts please download CDP68HC68T1's pdf datasheet.

CDP68HC68T1 Application circuits
CDP68HC68T1 circuits
This is one application circuit of CDP68HC68T1,If you need more circuits,please download CDP68HC68T1's pdf datasheet.


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