BQ4845P-A4 vs BQ4285EP Comparison
Detailed side-by-side comparison of BQ4845P-A4 by Texas Instruments and BQ4285EP 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 ✓ Active
Specification Comparison
| Parameter | BQ4845P-A4 | BQ4285EP |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Clock & Timing | Clock & Timing |
| Lifecycle Status | Active | Unknown |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $1.70 |
| Product Type | Parallel real-time clock and calendar with CPU supervisor | Real-time clock and calendar with NVRAM control |
| 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 | 24-pin PDIP, 0.600-inch (15.24 mm) |
| Interface | Parallel | Parallel clock/calendar and NVRAM interface |
| RoHS Status | [DATA_NEEDED: RoHS status] | unknown |
| REACH Status | [DATA_NEEDED: REACH status] | unknown |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Device Family | — | CMOS BQ4285E/L |
| General Nonvolatile Storage | — | 114 bytes |
| Calendar Capability | — | 100-year calendar |
| Clock/Calendar Format | — | BCD or binary |
| Supply Version | — | 3 V |
| Package Type | — | Through-hole PDIP |
| Interrupt Sources | — | 3 maskable interrupt sources |
| Square-Wave Output | — | Available |
| Auxiliary Output | — | 32.768 kHz output |
| Alarm Features | — | Alarm functionality |
| Wake-Up Capability | — | Available |
| Battery Operation | — | Supported |
| Legacy Compatibility | — | Direct clock/calendar replacement for IBM AT-compatible computers |
| Technology | — | CMOS |
| AEC-Q100 Status | — | unknown |