SN74HC151N from XBLW SN74HC151N XBLW, in a DIP-16. 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	I3	input	Data input 3. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
2	I2	input	Data input 2. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
3	I1	input	Data input 1. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
4	I0	input	Data input 0. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
5	Y	output	Multiplexer output. Non-inverting output presenting the value of the selected data input (I0-I7) when E is LOW; forced LOW when E is HIGH.
6	~Y	output	Complementary multiplexer output. Inverted version of Y; forced HIGH when E is HIGH.
7	~E	input	Active-LOW enable input. When HIGH the multiplexer is disabled (Y=LOW, ~Y=HIGH); when LOW the selected data input is routed to the outputs.
8	GND	power_in	Ground reference, 0 V.
9	S2	input	Common data select input, bit 2 (MSB). With S0/S1 selects which of I0-I7 is routed to the output.
10	S1	input	Common data select input, bit 1. With S0/S2 selects which of I0-I7 is routed to the output.
11	S0	input	Common data select input, bit 0 (LSB). With S1/S2 selects which of I0-I7 is routed to the output.
12	I7	input	Data input 7. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
13	I6	input	Data input 6. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
14	I5	input	Data input 5. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
15	I4	input	Data input 4. One of eight multiplexer data inputs selected by S0-S2 and routed to output Y when enable E is LOW.
16	VCC	power_in	Positive supply voltage. Recommended operating range 2.0 V to 6.0 V (typical 5.0 V); absolute max +7.0 V.

Key specifications

Parameter	Value
Manufacturer	XBLW SN74HC151N XBLW
Package	DIP-16
Category	Logic
Pins	16

Ordering variants

Same part, different packaging or reel option.

SN74HC151NN
SN74HC151NDTR
SN74HC151NTDTR

CAD (KiCad official)

Symbol: SN74HC151N
Footprint: Package_DIP:DIP-16_W7.62mm
3D model: DIP-16 (KiCad packages3D, STEP)

Provenance

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

Datasheet: XBLW SN74HC151N XBLW datasheet (18 pp, sha256 79854af3c3852d32, 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