LM239PWR from Texas Instruments, in a TSSOP-14. 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	1OUT	output	Comparator 1 open-collector output. Requires an external pull-up resistor to a positive supply (typ. 3 kΩ-15 kΩ to VCC).
2	2OUT	output	Comparator 2 open-collector output. Requires an external pull-up resistor to a positive supply.
3	VCC	power_in	Positive supply voltage. Single-supply range 2 V to 36 V, or split-supply ±1 V to ±18 V. Absolute max 36 V (single) / ±18 V (dual).
4	2IN-	input	Comparator 2 inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
5	2IN+	input	Comparator 2 non-inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
6	1IN-	input	Comparator 1 inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
7	1IN+	input	Comparator 1 non-inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
8	3IN+	input	Comparator 3 non-inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
9	3IN-	input	Comparator 3 inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
10	4IN+	input	Comparator 4 non-inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
11	4IN-	input	Comparator 4 inverting input. Common-mode input voltage range includes ground (0 V) up to VCC−1.5 V.
12	GND	power_in	Ground / negative supply reference. Tied to 0 V in single-supply operation or to the negative rail in split-supply operation.
13	4OUT	output	Comparator 4 open-collector output. Requires an external pull-up resistor to a positive supply.
14	3OUT	output	Comparator 3 open-collector output. Requires an external pull-up resistor to a positive supply.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-14
Category	Op-amp/Cmp
Pins	14

Ordering variants

Same part, different packaging or reel option.

LM239PWR
LM239PWRDR
LM239PWRD
LM239PWRN
LM239PWRNE

CAD (KiCad official)

Symbol: LM239PWR
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (53 pp, sha256 b8b91e2b545800b8, retrieved 2026-08-17, tier: manufacturer)
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