BM8563EMA from GATEMODE, in a MSOP-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 one terminal of the 32.768 kHz quartz crystal here; a series trimmer capacitance Ctrim (5-25 pF) is applied on this pin to tune the load capacitance (CL parallel = 7-12.5 pF target).
2	OSCO	output	Oscillator output. Connect the second terminal of the 32.768 kHz quartz crystal here. Internal capacitance on OSCO is 15-35 pF (typ 25 pF).
3	INT	output	Interrupt output, open-drain, active LOW. Asserted by the alarm and/or timer flags (AF/TF) subject to AIE/TIE enables. Requires an external pull-up to VDD; IOL >= 1 mA at VOL = 0.4 V.
4	VSS	power_in	Ground reference (0 V).
5	SDA	bidirectional	I2C-bus serial data input/output. Open-drain; requires external pull-up. Slave address: read A3h / write A2h. Supports standard and fast modes up to 400 kHz (VDD >= 1.8 V). IOL(SDA) >= 3 mA at VOL = 0.4 V.
6	SCL	input	I2C-bus serial clock input. Requires external pull-up. Supports up to 400 kHz. Input thresholds: VIL <= 0.3 VDD, VIH >= 0.7 VDD.
7	CLKOUT	output	Programmable clock output, open-drain. Software-selectable frequencies of 32.768 kHz (default), 1.024 kHz, 32 Hz, and 1 Hz via CLKOUT_control (address 0Dh). Requires external pull-up; goes high-impedance when disabled. IOL >= 1 mA at VOL = 0.4 V.
8	VDD	power_in	Supply voltage. 1.2-5.5 V with interface inactive; 1.8-5.5 V for full 400 kHz I2C operation. Absolute max +6.5 V. Typical IDD ~ 500 nA at VDD = 3.0 V (interface inactive, CLKOUT disabled).

Key specifications

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

Ordering variants

BM8563EMA
BM8563EMAESA
BM8563EMAEHA
BM8563EMAENA

CAD (KiCad official)

Symbol: BM8563EMA
Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
3D model: MSOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`bm8563ema.step`	123 KB	You want the bare part, or you mark your own boards.
`bm8563ema-etched.step`	2.2 MB	You want the part with `BM8563EMA` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 528 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