BQ4845YS-A4G4 vs BQ4845P-A4 Comparison
Detailed side-by-side comparison of BQ4845YS-A4G4 by Texas Instruments and BQ4845P-A4 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
BQ4845YS-A4G4 - Parallel RTC with CPU Supervisor | Texas Instruments
BQ4845YS-A4G4 ✓ ActiveTexas Instruments
BQ4845P-A4 Parallel RTC with CPU Supervisor | Texas Instruments
BQ4845P-A4 ✓ ActiveSpecification Comparison
| Parameter | BQ4845YS-A4G4 | BQ4845P-A4 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Clock & Timing | Clock & Timing |
| Lifecycle Status | Active | Active |
| Product Type | Real-time clock and calendar with CPU supervisor | Parallel real-time clock and calendar with CPU supervisor |
| RTC Interface | Parallel | — |
| Clock Crystal Frequency | 32.768 kHz | — |
| Backup Battery Voltage | 3 V | — |
| System Supply Voltage | 5 V | — |
| Date Format | BCD | — |
| Clock Format | BCD | — |
| Package | 28-SOIC (0.295 inch, 7.50 mm width) | 28-pin DIP, 0.600 inch / 15.24 mm pitch |
| Terminal Count | 28 terminals | — |
| Mounting Type | Surface mount | — |
| Terminal Form | Gull wing | — |
| Package Shape | Rectangular | — |
| Temperature Grade | Commercial | — |
| Integrated Functions | RTC, calendar, CPU supervisor, watchdog timer, and nonvolatile SRAM control | — |
| Chip Enable Output | Conditional chip-enable output (CEOUT) | — |
| Battery Voltage Output | VOUT | VOUT output |
| Backup Behavior | Backup cell powers the RTC and maintains external SRAM information in the absence of system voltage | — |
| Manufacturer Part Number | BQ4845YS-A4G4 | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | [DATA_NEEDED: AEC-Q100 qualification] | — |
| 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 |
| Interface | — | Parallel |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |