BM8563ESA from GATEMODE, in a SOP-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	OSCI	input	Oscillator input. Connect to one terminal of a 32.768 kHz quartz crystal (Rs <= 40 kOhm, CL = 8 pF typical). External trimmer capacitance 5-25 pF may be added on OSCI.
2	OSCO	output	Oscillator output. Connect to the other terminal of the 32.768 kHz quartz crystal. On-chip integrated capacitance is typically 25 pF (15-35 pF).
3	INT	output	Interrupt output, open-drain, active LOW. Asserts on alarm (AF) or timer (TF) events when the corresponding AIE/TIE enable is set; requires an external pull-up. Sink capability 1 mA at VOL = 0.4 V, VDD = 5 V.
4	VSS	power_in	Ground (0 V) reference for the device.
5	SDA	bidirectional	I2C-bus serial data input/output. Open-drain; requires external pull-up. Supports standard (100 kHz) and fast (400 kHz) modes. Output sink current 3 mA at VOL = 0.4 V, VDD = 5 V. Slave address: read A3h / write A2h.
6	SCL	input	I2C-bus serial clock input. Maximum 400 kHz. Input thresholds VIL <= 0.3 VDD, VIH >= 0.7 VDD.
7	CLKOUT	output	Programmable clock output, open-drain. Selectable 32.768 kHz (default), 1.024 kHz, 32 Hz, or 1 Hz via the CLKOUT_control register (0Dh); high-impedance when disabled. Requires external pull-up; sink capability 1 mA at VOL = 0.4 V, VDD = 5 V.
8	VDD	power_in	Positive supply voltage. 1.2 V to 5.5 V for clock data integrity; 1.8 V to 5.5 V for active I2C interface (up to 400 kHz). Typical low-power current 0.5 uA at VDD = 3.0 V, 25 degC. Absolute max +6.5 V.

Key specifications

Parameter	Value
Manufacturer	GATEMODE
Package	SOP-8
Category	RTC
Pins	8

CAD (KiCad official)

Symbol: BM8563ESA
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`bm8563esa.step`	122 KB	You want the bare part, or you mark your own boards.
`bm8563esa-etched.step`	2.3 MB	You want the part with `BM8563ESA` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 558 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: GATEMODE datasheet (29 pp, sha256 636c5bb2af64a7e3, 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).

Datasheet PDF