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Contents

README

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MC74ACT373DWR2G

onsemi · Latches · SOIC-20-300mil

MC74ACT373DWR2G from onsemi, in a SOIC-20-300mil. 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 OE input Output Enable input; LOW enables the 3-state outputs, HIGH puts them in high impedance without blocking entry of new data into the latches.
2 O0 tri_state 3-state latch output 0, sources/sinks 24 mA.
3 D0 input Data input 0; ACT version has TTL-compatible inputs.
4 D1 input Data input 1; ACT version has TTL-compatible inputs.
5 O1 tri_state 3-state latch output 1, sources/sinks 24 mA.
6 O2 tri_state 3-state latch output 2, sources/sinks 24 mA.
7 D2 input Data input 2; ACT version has TTL-compatible inputs.
8 D3 input Data input 3; ACT version has TTL-compatible inputs.
9 O3 tri_state 3-state latch output 3, sources/sinks 24 mA.
10 GND power_in Ground reference (0 V) for supply and I/O voltages.
11 LE input Latch Enable input; HIGH makes latches transparent, LOW latches data that met setup time.
12 O4 tri_state 3-state latch output 4, sources/sinks 24 mA.
13 D4 input Data input 4; ACT version has TTL-compatible inputs.
14 D5 input Data input 5; ACT version has TTL-compatible inputs.
15 O5 tri_state 3-state latch output 5, sources/sinks 24 mA.
16 O6 tri_state 3-state latch output 6, sources/sinks 24 mA.
17 D6 input Data input 6; ACT version has TTL-compatible inputs.
18 D7 input Data input 7; ACT version has TTL-compatible inputs.
19 O7 tri_state 3-state latch output 7, sources/sinks 24 mA.
20 VCC power_in Supply voltage; ACT operates 4.5 V to 5.5 V (absolute max -0.5 to +7.0 V).

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-20-300mil
Category Logic ICs
Pins 20

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
DC Supply Voltage VCC -0.5 7 V Referenced to GND 3
DC Input Voltage VIN -0.5 V -0.5 to VCC +0.5 3
DC Input Diode Current IIK -20 20 mA 3
DC Output Diode Current IOK -50 50 mA 3
DC Output Sink/Source Current IOUT -50 50 mA 3
DC Supply Current, per Output Pin ICC -50 50 mA 3
DC Ground Current, per Output Pin IGND -100 100 mA 3
Storage Temperature Range TSTG 65 150 C minimum printed as 65 (sign lost in text) 3
Junction Temperature Under Bias TJ 140 C 3
Thermal Resistance, SOIC θJA 65.8 C/W SOIC, JESD 51-7 3
Supply Voltage 'ACT VCC 4.5 5 5.5 V 'ACT 3
Operating Ambient Temperature Range TA -40 25 85 °C 3
Output Current - High IOH -24 mA 3
Output Current - Low IOL 24 mA 3
Input Rise and Fall Time 'ACT tr, tf 10 ns/V VCC @ 4.5 V, VIN 0.8 V to 2.0 V 3
Input Rise and Fall Time 'ACT tr, tf 8 ns/V VCC @ 5.5 V, VIN 0.8 V to 2.0 V 3
Min High Level Input Voltage VIH 2 1.5 V VCC 4.5 V, TA -40 to +85°C; VOUT = 0.1 V or VCC - 0.1 V 6
Max Low Level Input Voltage VIL 1.5 0.8 V VCC 4.5 V, TA -40 to +85°C; VOUT = 0.1 V or VCC - 0.1 V 6
Min High Level Output Voltage VOH 4.4 4.49 V VCC 4.5 V, IOUT = -50 µA, TA -40 to +85°C 6
Min High Level Output Voltage VOH 5.4 5.49 V VCC 5.5 V, IOUT = -50 µA, TA -40 to +85°C 6
Min High Level Output Voltage VOH 3.76 V VCC 4.5 V, IOH -24 mA, VIN = VIL or VIH, TA -40 to +85°C 6
Min High Level Output Voltage VOH 4.76 V VCC 5.5 V, IOH -24 mA, VIN = VIL or VIH, TA -40 to +85°C 6
Max Low Level Output Voltage VOL 0.001 0.1 V VCC 4.5 V, IOUT = 50 µA, TA -40 to +85°C 6
Max Low Level Output Voltage VOL 0.44 V VCC 4.5 V, IOL 24 mA, VIN = VIL or VIH, TA -40 to +85°C 6
Max Input Leakage Current IIN -1 1 µA VCC 5.5 V, VI = VCC, GND, TA -40 to +85°C 6
Additional Max. ICC/Input ICCT 0.6 1.5 mA VCC 5.5 V, VI = VCC - 2.1 V 6
Max 3-State Current IOZ -5 5 µA VCC 5.5 V, VI(OE) = VIL, VIH; VI = VCC, GND; VO = VCC, GND; TA -40 to +85°C 6
Min Dynamic Output Current IOLD 75 mA VCC 5.5 V, VOLD = 1.65 V Max 6
Min Dynamic Output Current IOHD -75 mA VCC 5.5 V, VOHD = 3.85 V Min 6
Max Quiescent Supply Current ICC 8 80 µA VCC 5.5 V, VIN = VCC or GND, TA -40 to +85°C 6
Propagation Delay Dn to On (tPLH) tPLH 1.5 8.5 11.5 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Propagation Delay Dn to On (tPHL) tPHL 1.5 8 11.5 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Propagation Delay LE to On (tPLH) tPLH 2 8.5 11.5 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Propagation Delay LE to On (tPHL) tPHL 1.5 8 11.5 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Output Enable Time tPZH 1.5 8 10.5 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Output Enable Time tPZL 1.5 7.5 10.5 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Output Disable Time tPHZ 2.5 9 12.5 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Output Disable Time tPLZ 1 7.5 10 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Setup Time, HIGH or LOW Dn to LE ts 8 3 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Hold Time, HIGH or LOW Dn to LE th 1 0 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
LE Pulse Width, HIGH tw 8 2 ns VCC 5.0 V, CL = 50 pF, TA -40 to +85°C 7
Input Capacitance CIN 4.5 pF VCC = 5.0 V 7
Power Dissipation Capacitance CPD 40 pF VCC = 5.0 V 7

CAD (KiCad official)

  • Symbol: MC74ACT373DWR2G
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: mc74act373dwr2g-etched.step / mc74act373dwr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc74act373dwr2g.step / mc74act373dwr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (11 pp, sha256 de6eab515b94bb37, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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