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AiP74HCT245TA20.TR

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Wuxi I-core Elec Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AiP74HCT245TA20.TR

Wuxi I-core Elec · Buffers, Drivers, Receivers, Transceivers · TSSOP-20

AiP74HCT245TA20.TR from Wuxi I-core Elec, 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 DIR input Transfer direction control input: per the function table, with OE low, DIR low transfers B data to A and DIR high transfers A data to B.
2 A0 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
3 A1 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
4 A2 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
5 A3 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
6 A4 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
7 A5 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
8 A6 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
9 A7 bidirectional Bidirectional data input/output of the A bus; the output goes to high-impedance (Z) when OE is high.
10 GND power_in Ground reference, 0 V.
11 B7 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
12 B6 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
13 B5 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
14 B4 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
15 B3 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
16 B2 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
17 B1 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
18 B0 bidirectional Bidirectional data input/output of the B bus; the output goes to high-impedance (Z) when OE is high.
19 OE input Output enable input, active low; when driven high the outputs are placed in the high-impedance (Z) state.
20 VCC power_in Supply voltage; for AiP74HCT245 the recommended range is 4.5 V to 5.5 V (typ. 5.0 V), and the absolute maximum rating is -0.5 V to +7.0 V.

Key specifications

Parameter Value
Manufacturer Wuxi I-core Elec
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 VCC -0.5 7 V 8
Input clamp current IIK -20 20 mA VI<-0.5V or VI>VCC+0.5V 8
Output clamp current IOK -20 20 mA VO<-0.5V or VO>VCC+0.5V 8
Output current IO -35 35 mA -0.5V<VO<VCC+0.5V 8
Supply current ICC 70 mA 8
Storage temperature Tstg -65 150 ℃ 8
Total power dissipation Ptot 500 mW 8
Supply voltage (AiP74HCT245) VCC 4.5 5 5.5 V 8
Input voltage VI 0 V 8
Output voltage VO 0 V 8
Input rise and fall rate Δt/ΔV 1.67 139 ns/V VCC=4.5V 8
Operating ambient temperature Tamb -40 125 ℃ 8
High-level input voltage VIH 2 1.6 V VCC=4.5V～5.5V 9
Low-level input voltage VIL 1.2 0.8 V VCC=4.5V～5.5V 9
High-level output voltage VOH 4.4 4.5 V VI=VIH or VIL; VCC=4.5V; IO=-20uA 9
High-level output voltage VOH 3.98 4.32 V VI=VIH or VIL; VCC=4.5V; IO=-6.0mA 9
Low-level output voltage VOL 0 0.1 V VI=VIH or VIL; VCC=4.5V; IO=20uA 9
Low-level output voltage VOL 0.15 0.26 V VI=VIH or VIL; VCC=4.5V; IO=6.0mA 9
Input leakage current II -1 1 uA VI=VCC or GND; VCC=5.5V 9
Off-state output current IOZ -1 1 uA VI=VIH or VIL; VCC=5.5V; VO=VCC or GND 9
Quiescent supply current ICC 8 uA VI=VCC or GND; IO=0A; VCC=5.5V 9
Additional supply current per An or Bn input ΔICC 144 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 9
Additional supply current per OE input ΔICC 540 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 9
Additional supply current per DIR input ΔICC 324 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 9
High-level input voltage (-40 to +85 ℃) VIH 2 V VCC=4.5V～5.5V 10
Low-level input voltage (-40 to +85 ℃) VIL 0.8 V VCC=4.5V～5.5V 10
High-level output voltage (-40 to +85 ℃) VOH 4.4 V VI=VIH or VIL; VCC=4.5V; IO=-20uA 10
High-level output voltage (-40 to +85 ℃) VOH 3.84 V VI=VIH or VIL; VCC=4.5V; IO=-6.0mA 10
Low-level output voltage (-40 to +85 ℃) VOL 0.1 V VI=VIH or VIL; VCC=4.5V; IO=20uA 10
Low-level output voltage (-40 to +85 ℃) VOL 0.33 V VI=VIH or VIL; VCC=4.5V; IO=6.0mA 10
Input leakage current (-40 to +85 ℃) II -1 1 uA VI=VCC or GND; VCC=5.5V 10
Off-state output current (-40 to +85 ℃) IOZ -5 5 uA VI=VIH or VIL; VCC=5.5V; VO=VCC or GND 10
Quiescent supply current (-40 to +85 ℃) ICC 80 uA VI=VCC or GND; IO=0A; VCC=5.5V 10
Additional supply current per An or Bn input (-40 to +85 ℃) ΔICC 180 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 10
Additional supply current per OE input (-40 to +85 ℃) ΔICC 675 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 10
Additional supply current per DIR input (-40 to +85 ℃) ΔICC 405 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 10
High-level input voltage (-40 to +125 ℃) VIH 2 V VCC=4.5V～5.5V 11
Low-level input voltage (-40 to +125 ℃) VIL 0.8 V VCC=4.5V～5.5V 11
High-level output voltage (-40 to +125 ℃) VOH 4.4 V VI=VIH or VIL; VCC=4.5V; IO=-20uA 11
High-level output voltage (-40 to +125 ℃) VOH 3.7 V VI=VIH or VIL; VCC=4.5V; IO=-6.0mA 11
Low-level output voltage (-40 to +125 ℃) VOL 0.1 V VI=VIH or VIL; VCC=4.5V; IO=20uA 11
Low-level output voltage (-40 to +125 ℃) VOL 0.4 V VI=VIH or VIL; VCC=4.5V; IO=6.0mA 11
Input leakage current (-40 to +125 ℃) II -1 1 uA VI=VCC or GND; VCC=5.5V 11
Off-state output current (-40 to +125 ℃) IOZ -10 10 uA VI=VIH or VIL; VCC=5.5V; VO=VCC or GND 11
Quiescent supply current (-40 to +125 ℃) ICC 160 uA VI=VCC or GND; IO=0A; VCC=5.5V 11
Additional supply current per An or Bn input (-40 to +125 ℃) ΔICC 196 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 11
Additional supply current per OE input (-40 to +125 ℃) ΔICC 735 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 11
Additional supply current per DIR input (-40 to +125 ℃) ΔICC 441 uA per input pin; VI=VCC-2.1V; other inputs at VCC or GND; VCC=4.5V～5.5V; IO=0A 11
Propagation delay An to Bn or Bn to An tPLH, tPHL 12 22 ns VCC=4.5V; 见图4 12
Output enable time OE to An or Bn tPZL, tPZH 16 30 ns VCC=4.5V；见图5 12
Output disable time OE to An or Bn tPLZ, tPHZ 16 30 ns VCC=4.5V；见图5 12
Output transition time tTHL, tTLH 5 12 ns VCC=4.5V；见图4 12
Propagation delay An to Bn or Bn to An (-40 to +85 ℃) tPLH, tPHL 28 ns VCC=4.5V；见图4 13
Output enable time OE to An or Bn (-40 to +85 ℃) tPZL, tPZH 38 ns VCC=4.5V；见图5 13
Output disable time OE to An or Bn (-40 to +85 ℃) tPLZ, tPHZ 38 ns VCC=4.5V；见图5 13
Output transition time (-40 to +85 ℃) tTHL, tTLH 15 ns VCC=4.5V；见图4 13
Propagation delay An to Bn or Bn to An (-40 to +125 ℃) tPLH, tPHL 33 ns VCC=4.5V；见图4 14
Output enable time OE to An or Bn (-40 to +125 ℃) tPZL, tPZH 45 ns VCC=4.5V；见图5 14
Output disable time OE to An or Bn (-40 to +125 ℃) tPLZ, tPHZ 45 ns VCC=4.5V；见图5 14
Output transition time (-40 to +125 ℃) tTHL, tTLH 18 ns VCC=4.5V；见图4 14

CAD (KiCad official)

  • Symbol: AiP74HCT245TA20.TR
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: aip74hct245ta20-tr-etched.step / aip74hct245ta20-tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aip74hct245ta20-tr.step / aip74hct245ta20-tr.glb are the bare package body.

Provenance

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

  • Datasheet: Wuxi I-core Elec datasheet (22 pp, sha256 d0edadc0b13c66c2, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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