| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,336 pcs
|
2336 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Current | |
| Date Format | |
| Features | |
| Interface | |
| Memory Size | |
| Mounting Type | |
| Operating Temperature | |
| Supplier Device Package | |
| Time Format | |
| Type | |
| Voltage |
The BQ3285ESS is a low-power real-time clock (RTC) designed for IBM AT-compatible computers and other embedded systems. It provides a full clock/calendar function with alarm, daylight saving, leap year adjustment, and square wave output. The device features 242 bytes of nonvolatile static RAM (NVSRAM) for general-purpose storage. It communicates via a parallel interface and supports both 12-hour and 24-hour time formats. The operating voltage range is 2.5V to 4V, with a typical supply current of 300µA at 5V. The BQ3285ESS is available in a 24-pin SSOP (0.154", 3.90mm Width) surface-mount package. It is functionally compatible with the DS1285 and closely matches the MC146818A pin configuration. The device includes a 32.768kHz output for power management and a wake-up alarm interrupt that remains active in battery-backup mode. It supports selectable Intel or Motorola bus timing and BCD or binary clock/calendar formats.
The operating voltage range is 2.5V to 4V as per existing data, but the datasheet indicates 2.7-3.6V for the L version and 4.5-5.5V for the E version. Verify the specific variant.
The BQ3285ESS is available in a 24-SSOP (0.154", 3.90mm Width) surface mount package.
The operating temperature range is 0°C to 70°C.
The existing data indicates RoHS3 Compliant, but this is unverified and should be confirmed from official sources.
The BQ3285ESS includes 242 bytes of nonvolatile static RAM (NVSRAM).
The BQ3285ESS uses a parallel interface.
It supports alarm, daylight saving, leap year adjustment, NVSRAM, and square wave output. Time format is HH:MM:SS (12/24 hr) and date format is YY-MM-DD-dd.