BQ4845S-A4G4 vs BQ4845S-A4NTRG4 Comparison
Detailed side-by-side comparison of BQ4845S-A4G4 by Texas Instruments and BQ4845S-A4NTRG4 by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | BQ4845S-A4G4 | BQ4845S-A4NTRG4 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Clock & Timing | Clock & Timing |
| Lifecycle Status | Unknown | Active |
| Product Type | Real-time clock and calendar IC with CPU supervisor | Parallel real-time clock and calendar with CPU supervisor |
| Clock Interface | Parallel | — |
| Timekeeping Crystal Frequency | 32.768 kHz | — |
| Backup Battery | 3 V | — |
| Calendar Range | 100 years | 100 years |
| Package | 28-SOIC, 0.295 inch width, 7.50 mm | 28-pin SOIC, 7.50 mm width |
| Mounting Type | Surface mount | Surface mount |
| Supervisor Functions | CPU supervisor and watchdog timer | — |
| Alarm and Interrupt Functions | Alarm and interrupt functions | — |
| External Memory Control | Conditional chip-enable output CEOUT | — |
| Battery Monitoring | Battery voltage output VOUT | — |
| Backup Retention | Maintains external SRAM information in the absence of system voltage | — |
| System-Level Use | Battery-backed system timing and power-failure monitoring | — |
| Operating Temperature Range | [DATA_NEEDED: Operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Supply Voltage Range | [DATA_NEEDED: Supply voltage range] | — |
| Quiescent Current | [DATA_NEEDED: Quiescent current] | — |
| Timekeeping Accuracy | [DATA_NEEDED: Timekeeping accuracy] | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| Main Supply Voltage Range | — | 4.75 V to 5.5 V |
| Backup Battery Voltage Range | — | 2.3 V to 4 V |
| Crystal Frequency | — | 32.768 kHz |
| Clock Format | — | BCD |
| Date Format | — | BCD |
| Host Interface | — | Parallel |
| Operating Features | — | Alarm, daylight-saving time, leap year, watchdog timer, processor reset, interrupt, and battery-low warning |
| Backup Clock Operating Current | — | Less than 500 nA |
| Watchdog Input Bias | — | Approximately 1.6 V through a 100 kilohm-equivalent internal resistor network |
| Battery Voltage Output | — | VOUT output available |
| External SRAM Control | — | CEOUT write-protection output available |
| Power-Fail Behavior | — | Watchdog disabled and WDI disconnected from the internal resistor network below the power-fail threshold |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |