Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

main

Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206

Name	Last commit message	Last updated
docs	Publish 0.1.0 · Ray	4d ago
viewers	ds2431-t-r: viewers · Ray	4d ago
ds2431-t-r-etched.glb	Publish 0.1.0 · Ray	4d ago
ds2431-t-r-etched.step	ds2431-t-r: factory component page (tier=lcsc) · Ray	4d ago
ds2431-t-r-hero.glb	ds2431-t-r: hero GLB from the etched model (keeps the MPN mark) · Ray	4d ago
ds2431-t-r-hero.overlay.json	Publish 0.1.0 · Ray	4d ago
ds2431-t-r.glb	Publish 0.1.0 · Ray	4d ago
ds2431-t-r.kicad_mod	Publish 0.1.0 · Ray	4d ago
ds2431-t-r.kicad_sym	Publish 0.1.0 · Ray	4d ago
ds2431-t-r.lbr	Publish 0.1.0 · Ray	4d ago
ds2431-t-r.step	Publish 0.1.0 · Ray	4d ago
package.json	Publish 0.1.0 · Ray	4d ago
page.json	Set visibility: public · Ray	4d ago
README.md	Publish 0.1.0 · Ray	4d ago

DS2431+T&R

Analog Devices Inc Maxim Integrated · EEPROM · TO-92-3

DS2431+T&R from Analog Devices Inc Maxim Integrated, in a TO-92-3. 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	GND	power_in	Ground reference for the device; the 1-Wire bus requires only a single data lead and a ground return.
2	IO	bidirectional	1-Wire bus interface, an open-drain signal that requires an external pullup resistor (RPUP 0.3 kΩ to 2.2 kΩ, VPUP 2.8 V to 5.25 V).
3	N.C.	unconnected	Not connected; the datasheet specifies no function for this lead on the TO-92 package.

Key specifications

Parameter	Value
Manufacturer	Analog Devices Inc Maxim Integrated
Package	TO-92-3
Category	Memory
Pins	3

Electrical characteristics

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

Parameter	Symbol	Min	Max	Unit	Conditions	Page
1-Wire Pullup Voltage	VPUP	2.8	5.25	V	Note 2	2
1-Wire Pullup Resistance	RPUP	0.3	2.2	kΩ	Notes 2, 3	2
Input Capacitance	CIO		1000	pF	Notes 4, 5	2
Input Load Current	IL	0.05	6.7	µA	IO pin at VPUP	2
High-to-Low Switching Threshold	VTL	0.5		V	Notes 5, 6, 7; printed max is VPUP - 1.8 V	2
Input Low Voltage	VIL		0.5	V	Notes 2, 8	2
Low-to-High Switching Threshold	VTH	1		V	Notes 5, 6, 9; printed max is VPUP - 1.0 V	2
Switching Hysteresis	VHY	0.21	1.7	V	Notes 5, 6, 10	2
Output Low Voltage	VOL		0.4	V	At 4mA (Note 11)	2
Recovery Time (standard speed)	tREC	5		µs	Notes 2, 12; standard speed, RPUP = 2.2kΩ	2
Recovery Time (overdrive speed)	tREC	2		µs	Notes 2, 12; overdrive speed, RPUP = 2.2kΩ	2
Recovery Time (overdrive, directly prior to reset pulse)	tREC	5		µs	Notes 2, 12; overdrive speed directly prior to reset pulse, RPUP = 2.2kΩ	2
Rising-Edge Hold-Off Time (standard speed)	tREH	0.5	5	µs	Notes 5, 13; standard speed	2
Time Slot Duration (standard speed)	tSLOT	65		µs	Notes 2, 14; standard speed	2
Time Slot Duration (overdrive speed)	tSLOT	8		µs	Notes 2, 14; overdrive speed	2
Reset Low Time (standard speed)	tRSTL	480	640	µs	Note 2; standard speed	2
Reset Low Time (overdrive speed)	tRSTL	48	80	µs	Note 2; overdrive speed	2
Presence-Detect High Time (standard speed)	tPDH	15	60	µs	standard speed	2
Presence-Detect High Time (overdrive speed)	tPDH	2	6	µs	overdrive speed	2
Presence-Detect Low Time (standard speed)	tPDL	60	240	µs	standard speed	2
Presence-Detect Low Time (overdrive speed)	tPDL	8	24	µs	overdrive speed	2
Presence-Detect Sample Time (standard speed)	tMSP	60	75	µs	Notes 2, 15; standard speed	2
Presence-Detect Sample Time (overdrive speed)	tMSP	6	10	µs	Notes 2, 15; overdrive speed	2
Write-Zero Low Time (standard speed)	tW0L	52.1	120	µs	Notes 2, 16, 17; standard speed	3
Write-Zero Low Time (overdrive speed, VPUP > 4.5V)	tW0L	5	15.5	µs	Notes 2, 16, 17; overdrive speed, VPUP > 4.5V	3
Write-Zero Low Time (overdrive speed)	tW0L	6	15.5	µs	Notes 2, 16, 17; overdrive speed	3
Write-One Low Time (standard speed)	tW1L	1	15	µs	Notes 2, 17; standard speed	3
Write-One Low Time (overdrive speed)	tW1L	1	2	µs	Notes 2, 17; overdrive speed	3
Read Low Time (standard speed)	tRL	5		µs	Notes 2, 18; standard speed; printed max is 15 - d	3
Read Low Time (overdrive speed)	tRL	1		µs	Notes 2, 18; overdrive speed; printed max is 2 - d	3
Read Sample Time (standard speed)	tMSR		15	µs	Notes 2, 18; standard speed; printed min is tRL + d	3
Read Sample Time (overdrive speed)	tMSR		2	µs	Notes 2, 18; overdrive speed; printed min is tRL + d	3
Programming Current	IPROG		0.8	mA	Notes 5, 19	3
Programming Time	tPROG		10	ms	Notes 20, 21; version A2 and later (version A1: 12.5 ms)	3
Write/Erase Cycles (Endurance) at +25°C	NCY	200		kcycles	Notes 22, 23; At +25°C	3
Write/Erase Cycles (Endurance) at +85°C (worst case)	NCY	50		kcycles	Notes 22, 23; At +85°C (worst case)	3
Data Retention	tDR	40		years	Notes 24, 25, 26; At +85°C (worst case)	3
IO Voltage Range to GND	VIO	-0.5	6	V		2
IO Sink Current	IIO		20	mA		2
Operating Temperature Range	TA	-40	85	°C		2
Junction Temperature	TJ		150	°C		2
Storage Temperature Range	TSTG	-55	125	°C		2
Lead Temperature (excluding UCSP, soldering, 10s)	TLEAD		300	°C	Excluding UCSP, soldering, 10s	2
Soldering Temperature (reflow), TO-92	TSOLDER		250	°C	TO-92 package	2

CAD (KiCad official)

Symbol: DS2431+T&R
Footprint: Package_TO_SOT_THT:TO-92_Inline
3D model: TO-92-3 (KiCad packages3D, STEP)
3D model files: ds2431-t-r-etched.step / ds2431-t-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ds2431-t-r.step / ds2431-t-r.glb are the bare package body.

Provenance

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

Datasheet: Analog Devices Inc Maxim Integrated datasheet (27 pp, sha256 17faab651646bde6, retrieved 2026-10-18, tier: lcsc)
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