component
DS3231MZ+TRL
Public Unreviewedby Ray
Analog Devices Inc Maxim Integrated Real Time Clocks, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDS3231MZ+TRL
Analog Devices Inc Maxim Integrated · Real Time Clocks · SOIC-8
DS3231MZ+TRL from Analog Devices Inc Maxim Integrated, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 32KHZ | output | 32.768kHz output (50% duty cycle). Open-drain; requires an external pullup (up to 5.5V). Enabled via the EN32KHZ bit in the Status register (0Fh); operates on either VCC or VBAT. Leave open if unused. |
| 2 | VCC | power_in | DC power pin for primary power supply (2.3V-5.5V). Decouple with a 0.1µF-1.0µF capacitor. Tie to GND if not used (VBAT-only operation). |
| 3 | INT/SQW | output | Active-low interrupt or 1Hz square-wave output. Open-drain; requires an external pullup to ≤5.5V. Function selected by the INTCN bit in Control register (0Eh): INTCN=0 outputs 1Hz square wave; INTCN=1 outputs alarm-match interrupt. Defaults to interrupt with alarms disabled at power-up. Leave open if unused. |
| 4 | RST | bidirectional | Active-low reset I/O. Open-drain output driven low when VCC < VPF; released high through an internal ~50kΩ pullup (RPU) to VCC after tRST once VCC exceeds VPF. Also acts as a debounced pushbutton input - pulling it low triggers a reset request. No external pullup required. If the oscillator is disabled, tREC is bypassed and RST immediately goes high. |
| 5 | GND | power_in | Device ground reference. |
| 6 | VBAT | power_in | Backup power-supply input (2.3V-5.5V). Provides continuous timekeeping when VCC falls below VPF. Decouple with a 0.1µF-1.0µF low-leakage capacitor when used as primary supply; no cap required when used only as backup. Tie to GND if unused. UL-recognized against reverse charging for use with primary lithium cells. |
| 7 | SDA | bidirectional | I2C serial data input/output. Open-drain; requires an external pullup (may be pulled to any voltage up to 5.5V regardless of VCC). Supports fast-mode (400kHz) and standard-mode I2C. |
| 8 | SCL | input | I2C serial clock input. Synchronizes data on the I2C bus. Pullup voltage may be up to 5.5V regardless of VCC. Supports 400kHz fast-mode I2C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SOIC-8 |
| Category | Clock/Timing |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
DS3231MZ+TRLDS3231MZ+TRLMZ/V+DS3231MZ+TRLM+
CAD (KiCad official)
- Symbol:
DS3231MZ+TRL - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (20 pp, sha256
dcc1cd00b353b9f3, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).