ISL12022MIBZ-T

ISL12022MIBZ-T is a low‑power, I2C real‑time clock/calendar IC from Intersil/Renesas. It keeps accurate time (seconds through years) using a 32.768 kHz crystal and can preserve the clock in battery-backup mode when main power is off. It provides time/date registers (Y/M/D, H:M:S), leap-year handling, and supports alarm and timer/square‑wave outputs. The MIBZ-T suffix indicates a specific package/tape‑and‑reel option for the part.
Typical use: embedded systems needing reliable timekeeping during power loss, such as microcontroller systems, data loggers, wearables, meters, and industrial equipment.
Note: for exact electrical specs, pinout, programming interface, and any memory features, consult the ISL12022 datasheet and application notes, and verify the specific MIBZ‑T variant.

ISL12022MIBZ-T features (concise):
- I2C-compatible real-time clock/calendar with battery-backed operation
- 32.768 kHz timebase input (external crystal) for low-power timekeeping
- Timekeeping registers: seconds, minutes, hours, day, date, month, year (leap-year aware)
- Alarm functions and programmable timer
- Programmable square-wave/interrupt output
- Status/interrupt flags for events
- VBAT battery input with seamless switchover during power loss
- Low power consumption in battery-backup mode
- Wide supply range (typical 2.7–5.5V)
- Package: 8-pin MIBZ (RoHS-compliant)
Note: For exact electrical characteristics, pinout, timing, and voltage ranges, consult the ISL12022MIBZ-T datasheet.

- Pin count: 8 pins
- Function: I2C real-time clock/calendar (RTC) device (timekeeping with calendar functions; includes on-chip SRAM for data storage).

- Manufacturer: Renesas Electronics Corporation (the ISL12022 line originated with Intersil; Intersil was acquired by Renesas).
- What kind of company: A Japanese multinational semiconductor company that designs and manufactures analog, mixed-signal, and power ICs, including timing devices such as real-time clocks.

ISL12022MIBZ-T is a low‑power I2C real‑time clock/calendar with battery backup, alarm and programmable square‑wave. It provides accurate timekeeping when main power is off. Typical applications:
- Computer and data-storage systems
- Network/telecom equipment and embedded controllers
- Industrial automation, data logging, and SCADA
- Consumer electronics (set‑top boxes, multimedia devices)
- Automotive instrumentation and telematics
- Medical devices requiring time stamping
- IoT and portable/battery‑powered devices

ISL12022MIBZ-T uses an 8-pin MIBZ package (MSOP-8). The trailing “-T” indicates Tape & Reel packaging.