BR25H320NUX-5ACTR from ROHM Semicon, in a VSON-8(2x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	CSB	input	Chip select input for the SPI bus; when HOLD status is entered, CSB must be held Low, and setting CSB High during HOLD resets the IC so communication cannot be restarted.
2	SO	output	Serial data output; it goes to high impedance (High-Z) during HOLD status, and the datasheet gives IOLMAX 10 mA and IOHMAX -10 mA limits for this pin.
3	WPB	input	Write protect input; when WPEN = 1 and WPB is Low, the Write Status Register command is disabled, while WRITE, WRID and LID remain writable.
4	GND	power_in	All input/output reference voltage, 0 V.
5	SI	input	Serial data input for the SPI bus; its value is Don't Care during HOLD status.
6	SCK	input	Serial clock input for the SPI bus, with clock frequency up to 20 MHz (Max) stated in the key specifications.
7	HOLDB	input	Hold input; pulling it Low while SCK is Low pauses serial communication (HOLD status) and setting it High while SCK is Low releases HOLD.
8	VCC	power_in	Power supply, with the operating supply voltage range given as 1.7 V to 5.5 V.
9	EXP-PAD	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	ROHM Semicon
Package	VSON-8(2x3)
Category	Memory
Pins	9

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Input Low Voltage	VIL	-0.3			V		6
Output Low Voltage 1	VOL1	0		0.4	V	IOL = 3.0 mA, 2.5 V ≤ VCC ≤ 5.5 V	6
Output Low Voltage 2	VOL2	0		0.2	V	IOL = 1.0 mA, 1.7 V ≤ VCC < 2.5 V	6
Input Leakage Current	ILI	-2		2	μA	VIN = 0 V to Vcc	6
Output Leakage Current	ILO	-2		2	μA	VOUT = 0 V to Vcc, CSB = Vcc	6
Supply Current (WRITE)	ICC1			1.7	mA	Vcc = 5.5 V, fSCK = 20 MHz, tE/W = 3.5 ms, VIH/VIL = 0.9Vcc/0.1Vcc, SO = OPEN	6
Supply Current (READ)	ICC2			1	mA	Vcc = 1.7 V, fSCK = 5 MHz, VIH/VIL = 0.9Vcc/0.1Vcc, SO = OPEN	6
Supply Current (READ)	ICC3			1.5	mA	Vcc = 2.5 V, fSCK = 5 MHz, VIH/VIL = 0.9Vcc/0.1Vcc, SO = OPEN	6
Supply Current (READ)	ICC4			3	mA	Vcc = 5.5 V, fSCK = 5 MHz, VIH/VIL = 0.9Vcc/0.1Vcc, SO = OPEN	6
Supply Current (READ)	ICC5			2	mA	Vcc = 2.5 V, fSCK = 10 MHz, VIH/VIL = 0.9Vcc/0.1Vcc, SO = OPEN	6
Supply Current (READ)	ICC6			4	mA	Vcc = 5.5 V, fSCK = 10 MHz, VIH/VIL = 0.9Vcc/0.1Vcc, SO = OPEN	6
Supply Current (READ)	ICC7			8	mA	Vcc = 5.5 V, fSCK = 20 MHz, VIH/VIL = 0.9Vcc/0.1Vcc, SO = OPEN	6
Standby Current	ISB			10	μA	Vcc = 5.5 V, CSB = HOLDB = WPB = Vcc, SCK = SI = Vcc or 0 V, SO = OPEN	6
Input Capacitance	CIN			8	pF	Ta = 25 °C, f = 5 MHz, VIN = GND	5
Output Capacitance	COUT			8	pF	Ta = 25 °C, f = 5 MHz, VOUT = GND	5
Write Cycles		4e+06			Times	Ta = 25 °C	5
Write Cycles		1.2e+06			Times	Ta = 85 °C	5
Write Cycles		500000			Times	Ta = 105 °C	5
Write Cycles		300000			Times	Ta = 125 °C	5
Data Retention		100			Years	Ta = 25 °C	5
Data Retention		60			Years	Ta = 105 °C	5
Data Retention		50			Years	Ta = 125 °C	5
Supply Voltage	VCC	-0.3		6.5	V	Ta = 25 °C	4
Terminal Voltage		-0.3			V	Ta = 25 °C	4
Electro Static Discharge (Human Body Model)	VESD	-3000		3000	V	Ta = 25 °C	4
Maximum Output Low Current (SO)	IOLMAX			10	mA	Ta = 25 °C	4
Maximum Output HIGH Current (SO)	IOHMAX	-10			mA	Ta = 25 °C	4
Maximum Junction Temperature	Tjmax			150	°C		4
Storage Temperature Range	Tstg	-65		150	°C		4
Supply Voltage	VCC	1.7		5.5	V		5
Ambient Operating Temperature	Ta	-40		125	°C		5
Bypass Capacitor	C	0.1			μF	Connect between IC VCC and GND pin	5
SCK Frequency	fSCK	0.01		5	MHz	1.7 V ≤ Vcc < 2.5 V	7
SCK Frequency	fSCK	0.01		10	MHz	2.5 V ≤ Vcc < 4.5 V	7
SCK Frequency	fSCK	0.01		20	MHz	4.5 V ≤ Vcc ≤ 5.5 V	7
SCK High Time	tSCKWH	80			ns	1.7 V ≤ Vcc < 2.5 V	7
SCK High Time	tSCKWH	40			ns	2.5 V ≤ Vcc < 4.5 V	7
SCK High Time	tSCKWH	20			ns	4.5 V ≤ Vcc ≤ 5.5 V	7
SCK Low Time	tSCKWL	80			ns	1.7 V ≤ Vcc < 2.5 V	7
SCK Low Time	tSCKWL	40			ns	2.5 V ≤ Vcc < 4.5 V	7
SCK Low Time	tSCKWL	20			ns	4.5 V ≤ Vcc ≤ 5.5 V	7
CSB Setup Time	tCSS	60			ns	1.7 V ≤ Vcc < 2.5 V	7
CSB Setup Time	tCSS	30			ns	2.5 V ≤ Vcc < 4.5 V	7
CSB Setup Time	tCSS	15			ns	4.5 V ≤ Vcc ≤ 5.5 V	7
SI Setup Time	tDIS	20			ns	1.7 V ≤ Vcc < 2.5 V	7
SI Setup Time	tDIS	10			ns	2.5 V ≤ Vcc < 4.5 V	7
SI Setup Time	tDIS	5			ns	4.5 V ≤ Vcc ≤ 5.5 V	7
SI Hold Time	tDIH	20			ns	1.7 V ≤ Vcc < 2.5 V	7
SI Hold Time	tDIH	10			ns	2.5 V ≤ Vcc < 4.5 V	7
SI Hold Time	tDIH	5			ns	4.5 V ≤ Vcc ≤ 5.5 V	7
Data Output Delay Time1	tPD1			50	ns	1.7 V ≤ Vcc < 2.5 V	7
Data Output Delay Time1	tPD1			30	ns	2.5 V ≤ Vcc < 4.5 V	7
Data Output Delay Time1	tPD1			20	ns	4.5 V ≤ Vcc ≤ 5.5 V	7
Write Time	tE/W			3.5	ms	1.7 V ≤ Vcc < 2.5 V	7
Thermal Resistance Junction to Ambient (VSON008X2030)	θJA		308.3		°C/W	1s PCB per JESD51-3 (Note 8)	5
Thermal Resistance Junction to Ambient (VSON008X2030)	θJA		69.6		°C/W	2s2p PCB per JESD51-5, 7 (Note 9), with thermal vias	5
Thermal Characterization Parameter Junction to Top (VSON008X2030)	ΨJT		43		°C/W	1s PCB per JESD51-3 (Note 8)	5
Thermal Characterization Parameter Junction to Top (VSON008X2030)	ΨJT		10		°C/W	2s2p PCB per JESD51-5, 7 (Note 9), with thermal vias	5

CAD (KiCad official)

Symbol: BR25H320NUX-5ACTR
Footprint: Package_SON:SON-8-1EP_3x2mm_P0.5mm_EP1.4x1.6mm
3D model: VSON-8(2x3), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
3D model files: br25h320nux-5actr-etched.step / br25h320nux-5actr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); br25h320nux-5actr.step / br25h320nux-5actr.glb are the bare package body.

Provenance

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

Datasheet: ROHM Semicon datasheet (44 pp, sha256 602cb1c352d7b641, retrieved 2026-11-04, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

BR25H320NUX-5ACTR

Verified BR25H320NUX-5ACTR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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