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README

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MC74ACT573DTR2G

onsemi · Latches · TSSOP-20

MC74ACT573DTR2G from onsemi, in a TSSOP-20. 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 3-state output enable input: when LOW the output buffers are enabled, and when HIGH they are in high-impedance mode without interfering with new data entering the latches.
2 D0 input Data input to latch 0; when LE is HIGH data on D0 enters the transparent latch, and the ACT version has TTL-compatible inputs.
3 D1 input Data input to latch 1; when LE is HIGH data on D1 enters the transparent latch, and the ACT version has TTL-compatible inputs.
4 D2 input Data input to latch 2; when LE is HIGH data on D2 enters the transparent latch, and the ACT version has TTL-compatible inputs.
5 D3 input Data input to latch 3; when LE is HIGH data on D3 enters the transparent latch, and the ACT version has TTL-compatible inputs.
6 D4 input Data input to latch 4; when LE is HIGH data on D4 enters the transparent latch, and the ACT version has TTL-compatible inputs.
7 D5 input Data input to latch 5; when LE is HIGH data on D5 enters the transparent latch, and the ACT version has TTL-compatible inputs.
8 D6 input Data input to latch 6; when LE is HIGH data on D6 enters the transparent latch, and the ACT version has TTL-compatible inputs.
9 D7 input Data input to latch 7; when LE is HIGH data on D7 enters the transparent latch, and the ACT version has TTL-compatible inputs.
10 GND power_in Ground reference; all DC input, output and supply voltages are referenced to GND.
11 LE input Latch enable input: when HIGH the latches are transparent to Dn, and when LOW the latches store the data present at the D inputs.
12 O7 tri_state 3-state latch output 7 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
13 O6 tri_state 3-state latch output 6 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
14 O5 tri_state 3-state latch output 5 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
15 O4 tri_state 3-state latch output 4 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
16 O3 tri_state 3-state latch output 3 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
17 O2 tri_state 3-state latch output 2 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
18 O1 tri_state 3-state latch output 1 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
19 O0 tri_state 3-state latch output 0 that can source and sink 24 mA (IOH −24 mA, IOL 24 mA).
20 VCC power_in Supply voltage: 2.0 to 6.0 V for AC and 4.5 to 5.5 V for ACT, per the recommended operating conditions.

Key specifications

Parameter Value
Manufacturer onsemi
Package TSSOP-20
Category Logic
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
Supply Voltage (ACT) VCC 4.5 5 5.5 V ACT devices 3
DC Input/Output Voltage VIN, VOUT 0 V Referenced to GND; upper limit printed as VCC 3
Input Rise and Fall Time (ACT, except Schmitt inputs) tr, tf 10 ns/V VCC @ 4.5 V 3
Input Rise and Fall Time (ACT, except Schmitt inputs) tr, tf 8 ns/V VCC @ 5.5 V 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
DC Supply Voltage VCC -0.5 7 V Referenced to GND 3
DC Input Voltage VIN -0.5 V Referenced to GND; upper limit printed as VCC + 0.5 V 3
DC Output Voltage VOUT -0.5 V Referenced to GND (Note 1); upper limit printed as VCC + 0.5 V 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 Per output pin 3
DC Ground Current, per Output Pin IGND -100 100 mA Per output pin 3
Storage Temperature Range TSTG -65 150 °C 3
Lead Temperature TL 260 °C 1 mm from case for 10 seconds 3
Junction Temperature Under Bias TJ 140 °C 3
ESD Withstand Voltage (Human Body Model) VESD 2000 V Human Body Model; printed as > 2000 V 3
ESD Withstand Voltage (Machine Model) VESD 200 V Machine Model; printed as > 200 V 3
ESD Withstand Voltage (Charged Device Model) VESD 1000 V Charged Device Model; printed as > 1000 V 3
Latchup Performance ILatchup -100 100 mA Above VCC and below GND at 85 °C 3
Thermal Resistance, Junction-to-Ambient (TSSOP) θJA 110.7 °C/W TSSOP package; per JESD 51-7 (Note 2) 3
Minimum High Level Input Voltage VIH 2 V VCC 4.5 V; TA = -40 °C to +85 °C; VOUT = 0.1 V or VCC - 0.1 V 6
Maximum Low Level Input Voltage VIL 0.8 V VCC 4.5 V; TA = -40 °C to +85 °C; VOUT = 0.1 V or VCC - 0.1 V 6
Minimum High Level Output Voltage VOH 4.4 V VCC 4.5 V; IOUT = -50 µA; TA = -40 °C to +85 °C 6
Minimum High Level Output Voltage VOH 5.4 V VCC 5.5 V; IOUT = -50 µA; TA = -40 °C to +85 °C 6
Minimum High Level Output Voltage VOH 3.76 V VCC 4.5 V; IOH = -24 mA; VIN = VIL or VIH; TA = -40 °C to +85 °C 6
Minimum High Level Output Voltage VOH 4.76 V VCC 5.5 V; IOH = -24 mA; VIN = VIL or VIH; TA = -40 °C to +85 °C 6
Maximum Low Level Output Voltage VOL 0.1 V VCC 4.5 V; IOUT = 50 µA; TA = -40 °C to +85 °C 6
Maximum Low Level Output Voltage VOL 0.44 V VCC 4.5 V; IOL = 24 mA; VIN = VIL or VIH; TA = -40 °C to +85 °C 6
Maximum Input Leakage Current IIN -1 1 µA VCC 5.5 V; VI = VCC, GND; TA = -40 °C to +85 °C 6
Additional Max. ICC/Input ICCT 0.6 1.5 mA VCC 5.5 V; VI = VCC - 2.1 V 6
Maximum 3-State Current IOZ -5 5 µA VCC 5.5 V; VI(OE) = VIL, VIH; VI = VCC, GND; VO = VCC, GND; TA = -40 °C to +85 °C 6
Minimum Dynamic Output Current (LOW) IOLD 75 mA VCC 5.5 V; VOLD = 1.65 V Max 6
Minimum Dynamic Output Current (HIGH) IOHD -75 mA VCC 5.5 V; VOHD = 3.85 V Min 6
Maximum Quiescent Supply Current ICC 80 µA VCC 5.5 V; VIN = VCC or GND; TA = -40 °C to +85 °C 6
Propagation Delay Dn to On (tPLH) tPLH 2 12 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Propagation Delay Dn to On (tPHL) tPHL 2 12 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Propagation Delay LE to On (tPLH) tPLH 2.5 12 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Propagation Delay LE to On (tPHL) tPHL 2 10.5 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Output Enable Time (tPZH) tPZH 1.5 11 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Output Enable Time (tPZL) tPZL 1.5 10.5 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Output Disable Time (tPHZ) tPHZ 1.5 12.5 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Output Disable Time (tPLZ) tPLZ 1 9.5 ns VCC 5.0 V; CL = 50 pF; TA = -40 °C to +85 °C 6
Setup Time, HIGH or LOW (Dn to LE) ts 3.5 ns VCC 5.0 V; TA = -40 °C to +85 °C 7
Hold Time, HIGH or LOW (Dn to LE) th 0 ns VCC 5.0 V; TA = -40 °C to +85 °C 7
LE Pulse Width, HIGH tw 4 ns VCC 5.0 V; TA = -40 °C to +85 °C 7

CAD (KiCad official)

  • Symbol: MC74ACT573DTR2G
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: mc74act573dtr2g-etched.step / mc74act573dtr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc74act573dtr2g.step / mc74act573dtr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (10 pp, sha256 553dcace17dc33e0, retrieved 2026-10-21, tier: manufacturer)
  • 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