CD74HC154M96 from Texas Instruments, in a SOIC-24-300mil. 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	Y0	output	Decoded active-LOW output 0. Asserts LOW when address inputs A3:A0 = 0000 and both enables are LOW; HIGH otherwise.
2	Y1	output	Decoded active-LOW output 1. Asserts LOW when A3:A0 = 0001 and both enables are LOW.
3	Y2	output	Decoded active-LOW output 2. Asserts LOW when A3:A0 = 0010 and both enables are LOW.
4	Y3	output	Decoded active-LOW output 3. Asserts LOW when A3:A0 = 0011 and both enables are LOW.
5	Y4	output	Decoded active-LOW output 4. Asserts LOW when A3:A0 = 0100 and both enables are LOW.
6	Y5	output	Decoded active-LOW output 5. Asserts LOW when A3:A0 = 0101 and both enables are LOW.
7	Y6	output	Decoded active-LOW output 6. Asserts LOW when A3:A0 = 0110 and both enables are LOW.
8	Y7	output	Decoded active-LOW output 7. Asserts LOW when A3:A0 = 0111 and both enables are LOW.
9	Y8	output	Decoded active-LOW output 8. Asserts LOW when A3:A0 = 1000 and both enables are LOW.
10	Y9	output	Decoded active-LOW output 9. Asserts LOW when A3:A0 = 1001 and both enables are LOW.
11	Y10	output	Decoded active-LOW output 10. Asserts LOW when A3:A0 = 1010 and both enables are LOW.
12	GND	power_in	Ground reference (0 V). Supply return for all internal logic.
13	Y11	output	Decoded active-LOW output 11. Asserts LOW when A3:A0 = 1011 and both enables are LOW.
14	Y12	output	Decoded active-LOW output 12. Asserts LOW when A3:A0 = 1100 and both enables are LOW.
15	Y13	output	Decoded active-LOW output 13. Asserts LOW when A3:A0 = 1101 and both enables are LOW.
16	Y14	output	Decoded active-LOW output 14. Asserts LOW when A3:A0 = 1110 and both enables are LOW.
17	Y15	output	Decoded active-LOW output 15. Asserts LOW when A3:A0 = 1111 and both enables are LOW.
18	E2	input	Active-LOW enable input 2. Both E1 and E2 must be LOW to enable the decoder; otherwise all Y outputs are forced HIGH.
19	E1	input	Active-LOW enable input 1. Both E1 and E2 must be LOW to enable the decoder; otherwise all Y outputs are forced HIGH.
20	A3	input	Binary address input bit 3 (MSB). CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled.
21	A2	input	Binary address input bit 2. CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled.
22	A1	input	Binary address input bit 1. CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled.
23	A0	input	Binary address input bit 0 (LSB). CMOS-level logic input selecting one of the sixteen Y outputs when the device is enabled.
24	VCC	power_in	Positive supply voltage input, 2 V to 6 V operating range. Bypass locally with a 0.1 uF ceramic capacitor to GND.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-24-300mil
Category	Logic
Pins	24

Ordering variants

Same part, different packaging or reel option.

CD74HC154M96
CD74HC154M96M
CD74HC154M96MT
CD74HC154M96E
CD74HC154M96EN
CD74HC154M96NSR
CD74HC154M96PW
CD74HC154M96PWR

CAD (KiCad official)

Symbol: CD74HC154M96
Footprint: Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm
3D model: SOIC-24-300mil (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (15 pp, sha256 e9dd64aa8bcfe428, 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