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SN74HC148N

Public Made by Adom

by adom

lingxingic Signal Switches, Multiplexers, Decoders, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN74HC148N

lingxingic · Signal Switches, Multiplexers, Decoders · DIP-16

SN74HC148N from lingxingic, in a DIP-16. 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 I4 input Data input I4 of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
2 I5 input Data input I5 of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
3 I6 input Data input I6 of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
4 I7 input Data input I7 (highest priority) of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
5 EI input Active-low enable input; when EI is high, A0, A1, A2, GS and EO are all forced high and the encoder outputs are disabled.
6 A2 output Binary encoded output bit A2 (4-2-1 code) of the highest-priority active data input; outputs are active at the low logic level.
7 A1 output Binary encoded output bit A1 (4-2-1 code) of the highest-priority active data input; outputs are active at the low logic level.
8 GND power_in Ground (0 V) reference for all voltages on the device.
9 A0 output Binary encoded output bit A0 (4-2-1 code) of the highest-priority active data input; outputs are active at the low logic level.
10 I0 input Data input I0 of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
11 I1 input Data input I1 of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
12 I2 input Data input I2 of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
13 I3 input Data input I3 of the 8-to-3 priority encoder; the data inputs are active at the low logic level.
14 GS output Group select output, which goes low when any data input is active while EI is low; it indicates that the encoder has an active input.
15 EO output Enable output used for cascading octal encoders; it goes low only when EI is low and all data inputs are high (no active input).
16 VCC power_in Supply voltage; the recommended operating range is 2.0 V to 6.0 V and the absolute maximum rating is 7.0 V, referenced to GND.

Key specifications

Parameter Value
Manufacturer lingxingic
Package DIP-16
Category Logic
Pins 16

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
supply voltage VCC -0.5 7 V 7
input clamping current IIK -20 20 mA VI < -0.5V or VI > VCC+0.5V 7
output clamping current IOK -20 20 mA VO < -0.5V or VO > VCC+0.5V 7
output current IO -25 25 mA -0.5V < VO < VCC+0.5V 7
supply current ICC 50 mA 7
ground current IGND -50 mA 7
storage temperature Tstg -65 150 ℃ 7
soldering temperature (DIP) TL 245 ℃ 10s; DIP 7
supply voltage VCC 2 5 6 V 8
input voltage VI 0 V 8
output voltage VO 0 V 8
ambient temperature Tamb -40 125 ℃ 8
HIGH-level input voltage VIH 1.5 1.2 V Tamb=-40℃ to +85℃; VCC=2.0V 8
HIGH-level input voltage VIH 3.15 2.4 V Tamb=-40℃ to +85℃; VCC=4.5V 8
HIGH-level input voltage VIH 4.2 3.2 V Tamb=-40℃ to +85℃; VCC=6.0V 8
LOW-level input voltage VIL 0.8 0.5 V Tamb=-40℃ to +85℃; VCC=2.0V 8
LOW-level input voltage VIL 2.1 1.35 V Tamb=-40℃ to +85℃; VCC=4.5V 8
LOW-level input voltage VIL 2.8 1.8 V Tamb=-40℃ to +85℃; VCC=6.0V 8
HIGH-level output voltage VOH 1.9 2 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V 8
HIGH-level output voltage VOH 4.4 4.5 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V 8
HIGH-level output voltage VOH 5.9 6 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V 8
HIGH-level output voltage VOH 3.84 4.32 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-4.0mA; VCC=4.5V 8
HIGH-level output voltage VOH 5.34 5.81 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=-5.2mA; VCC=6.0V 8
LOW-level output voltage VOL 0 0.1 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=20uA; VCC=2.0V 8
LOW-level output voltage VOL 0.15 0.33 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=4.0mA; VCC=4.5V 8
LOW-level output voltage VOL 0.16 0.33 V Tamb=-40℃ to +85℃; VI=VIH or VIL; IO=5.2mA; VCC=6.0V 8
input leakage current II -2 2 uA Tamb=-40℃ to +85℃; VI=VCC or GND; VCC=6.0V 8
supply current ICC 2 uA Tamb=-40℃ to +85℃; VI=VCC or GND; IO=0A; VCC=6.0V 8
HIGH-level input voltage VIH 1.5 V Tamb=-40℃ to +125℃; VCC=2.0V 9
HIGH-level input voltage VIH 3.15 V Tamb=-40℃ to +125℃; VCC=4.5V 9
HIGH-level input voltage VIH 4.2 V Tamb=-40℃ to +125℃; VCC=6.0V 9
LOW-level input voltage VIL 0.5 V Tamb=-40℃ to +125℃; VCC=2.0V 9
LOW-level input voltage VIL 1.35 V Tamb=-40℃ to +125℃; VCC=4.5V 9
LOW-level input voltage VIL 1.8 V Tamb=-40℃ to +125℃; VCC=6.0V 9
HIGH-level output voltage VOH 1.9 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=2.0V 9
HIGH-level output voltage VOH 4.4 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=4.5V 9
HIGH-level output voltage VOH 5.9 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-20uA; VCC=6.0V 9
HIGH-level output voltage VOH 3.7 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-4.0mA; VCC=4.5V 9
HIGH-level output voltage VOH 5.2 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=-5.2mA; VCC=6.0V 9
LOW-level output voltage VOL 0.1 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=20uA; VCC=2.0V 9
LOW-level output voltage VOL 0.4 V Tamb=-40℃ to +125℃; VI=VIH or VIL; IO=4.0mA; VCC=4.5V 9
input leakage current II -4 4 uA Tamb=-40℃ to +125℃; VI=VCC or GND; VCC=6.0V 9
supply current ICC 4 uA Tamb=-40℃ to +125℃; VI=VCC or GND; IO=0A; VCC=6.0V 9
propagation delay tPLH, tPHL 50 160 ns Tamb=-40℃ to +85℃; CL=50pF; see Figure 3; VCC=2.0V 10
propagation delay tPLH, tPHL 18 32 ns Tamb=-40℃ to +85℃; CL=50pF; VCC=4.5V 10
propagation delay tPLH, tPHL 14 27 ns Tamb=-40℃ to +85℃; CL=50pF; VCC=6.0V 10
transition time tTHL, tTLH 19 75 ns Tamb=-40℃ to +85℃; CL=50pF; see Figure 3; VCC=2.0V 10
transition time tTHL, tTLH 7 15 ns Tamb=-40℃ to +85℃; CL=50pF; VCC=4.5V 10
transition time tTHL, tTLH 6 6 ns Tamb=-40℃ to +85℃; CL=50pF; VCC=6.0V 10
propagation delay tPLH, tPHL 200 ns Tamb=-40℃ to +125℃; CL=50pF; see Figure 3; VCC=2.0V 10
propagation delay tPLH, tPHL 40 ns Tamb=-40℃ to +125℃; CL=50pF; VCC=4.5V 10
propagation delay tPLH, tPHL 34 ns Tamb=-40℃ to +125℃; CL=50pF; VCC=6.0V 10
transition time tTHL, tTLH 95 ns Tamb=-40℃ to +125℃; CL=50pF; see Figure 3; VCC=2.0V 10
transition time tTHL, tTLH 19 ns Tamb=-40℃ to +125℃; CL=50pF; VCC=4.5V 10
transition time tTHL, tTLH 16 ns Tamb=-40℃ to +125℃; CL=50pF; VCC=6.0V 10

CAD (KiCad official)

  • Symbol: SN74HC148N
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74hc148n-etched.step / sn74hc148n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc148n.step / sn74hc148n.glb are the bare package body.

Provenance

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

  • Datasheet: lingxingic datasheet (16 pp, sha256 d98e8bb639fa4696, retrieved 2026-10-19, 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