STMicroelectronics MKI41T56
The MK41T56 TIMEKEEPER® is a low power 512 bit static CMOS RAM organized as 64 words by 8 bits. The built-in address register is incremented automatically after each write or read data byte.| Part No. | MKI41T56 |
|---|---|
| Datasheet | MKI41T56 Download |
| Manufacturer |  STMicroelectronics |
| Description | 512 bit 64b x8 Serial Access TIMEKEEPER SRAM |
| Buy | Stock & Price |
DESCRIPTION
A built-in 32.768 kHz oscillator (external crystal controlled) and the first 8 bytes of the RAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. Addresses and data are transferred serially via a two-line bi-directional bus. The MK41T56 clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. The energy needed to sustain the RAM and clock operations can be supplied from a small lithium button cell. Table 1. Signal Names OSCI OCSO FT/OUT SDA SCL VBAT VCC VSS March 1999 Oscillator Input Oscillator Output Frequency Test / Output Driver (Open Drain) Serial Data Address Input / Output Serial Clock Battery Supply Voltage Supply Voltage Ground 1/15 8 1 PSDIP8 (N) 0.4mm Frame 8 1 SO8 (S) 150mil Width Figure 1. Logic Diagram VCC VBAT OSCI SCL MK41T56 MKI41T56 OSCO SDA FT/OUT VSS AI02304 MK41T56, MKI41T56 Figure 2A. DIP Pin Connections Figure 2B. SOIC P...
