BQ4845P-A4 vs BQ4845YP-A4E3 Comparison
Detailed side-by-side comparison of BQ4845P-A4 by Texas Instruments and BQ4845YP-A4E3 by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
BQ4845P-A4 Parallel RTC with CPU Supervisor | Texas Instruments
BQ4845P-A4 ✓ ActiveTexas Instruments
BQ4845YP-A4E3 - 5V Parallel RTC with Supervisor | Texas Instruments
BQ4845YP-A4E3 ✓ ActiveSpecification Comparison
| Parameter | BQ4845P-A4 | BQ4845YP-A4E3 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Clock & Timing | Clock & Timing |
| Lifecycle Status | Active | Active |
| Product Type | Parallel real-time clock and calendar with CPU supervisor | Real-time clock and calendar IC with CPU supervisor |
| Timekeeping | Seconds through years in BCD format | — |
| Calendar Range | 100 years | — |
| Crystal Interface | Direct connection for 32.768 kHz quartz crystal | — |
| Backup Battery | 3 V backup battery connection | — |
| Backup Current | Less than 500 nA in backup mode | — |
| CPU Supervision | Integrated microprocessor supervisor and reset | — |
| Watchdog | Watchdog timer function | — |
| Alarm | Alarm functionality | — |
| Daylight Saving | Daylight-saving support | — |
| Leap Year | Leap-year compensation | — |
| External SRAM Support | Write-protect and nonvolatile support for external SRAM | — |
| Conditional Chip Enable | CEOUT output | — |
| Battery Voltage Output | VOUT output | — |
| Package | 28-pin DIP, 0.600 inch / 15.24 mm pitch | 28-DIP (0.600 in, 15.24 mm) |
| Interface | Parallel | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | RoHS compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Supply Voltage Range | — | 4.5 V to 5.5 V |
| Clock Crystal Frequency | — | 32.768 kHz |
| Clock Format | — | BCD |
| Date Format | — | BCD |
| Interface Type | — | Parallel |
| Mounting Style | — | Through-hole |
| Number of Pins | — | 28 pins |
| Operating Temperature Range | — | 0 °C to 70 °C |
| Temperature Grade | — | Commercial |
| Backup Battery Support | — | 3 V backup battery connection |
| Backup Mode Clock Current | — | Less than 500 nA |
| Watchdog Timer | — | Yes, programmable timeout |
| Power-Fail Warning | — | Yes |
| Leap-Year Feature | — | Yes |
| Daylight Savings Feature | — | Yes |
| Alarm Feature | — | Yes |
| Conditional Chip Enable Output | — | CEOUT for external SRAM write protection |
| Backup Voltage Output | — | VOUT for battery-voltage monitoring |