4 layers150 × 50 mm
Overview
The ISO7321CD is a digital Isolator made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+125℃ 1 1 25Mbps 3000 33ns 3V~5.5V 3V~5.5V 65kV/us Fail-safe output、Output status configurable High Level、Low Level SOIC-8 Digital Isolators ROHS.
PCBKit's library has its KiCad symbol (Isolator:ISO7321C, from KiCad's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 2,100 are in stock at JLCPCB (part C187919). 7 open-source boards in 6 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- CMTI(kV/us)
- 65kV/us
- Data Rate(Max)
- 25Mbps
- Default Output
- Low Level
- Features
- Fail-safe output
- Isolation Voltage(Vrms)
- 3000
- Number of Channels
- 2
- Number of Forward Channels
- 1
- Number of Reverse Channels
- 1
- Operating Temperature
- -40℃~+125℃
- Propagation Delay(tpd)
- 33ns
- Voltage - Supply(VCCA)
- 3V~5.5V
- Voltage - Supply(VCCB)
- 3V~5.5V
Order codes
2- ISO7321CDRLCSC C187919
- ISO7321CDLCSC C2863277
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | VCC1 | Power in |
| 2 | OUTA | Output |
| 3 | INB | Input |
| 4 | GND1 | Power in |
| 5 | GND2 | Power in |
| 6 | OUTB | Output |
| 7 | INA | Input |
| 8 | VCC2 | Power in |
Open-source boards using it
All 7- 2 layers38.6 × 90.3 mm
BioElectricalSensor
CGrassin/biosignals
Board for the acquisition of bio-potentials (EMG, ECG, EEG, etc.).
107 parts15MIT - 4 layers70.7 × 56.9 mm
HEI Shift Light
drewsum/HEI_Shift_Light
An automotive shift light meant to integrate into the TACH signal from an HEI distributor, to be embedded in a dashboard
112 parts - 4 layers200 × 50 mm
- 4 layers100 × 100 mm
- 2 layers83 × 40 mm
- 2 layers47.1 × 57.3 mm
BioElectricalSensor
CGrassin/biosignals
Board for the acquisition of bio-potentials (EMG, ECG, EEG, etc.).
102 parts15MIT
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<iframe src="https://pcbkit.io/embed/parts/ti/ISO7321CD" title="ISO7321CD in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/ISO7321CD.jpg" alt="ISO7321CD" width="1200" height="900">[](https://pcbkit.io/parts/ti/ISO7321CD)Questions
Is there a KiCad symbol and footprint for the ISO7321CD?
Yes. The symbol is Isolator:ISO7321C and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ISO7321CD?
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Where is the ISO7321CD datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the ISO7321CD?
JLCPCB lists it as part C187919, with 2,100 in stock; the sellers' links on this page open their listings.
What can replace the ISO7321CD?
Parts like it in the library: the ADUM1201ARZ-RL7 by Analog Devices, the CA-IS3720HS by Chipanalog, the CA-IS3721HS by Chipanalog and the ISO7721D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ISO7321CD?
7 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
ADUM1201ARZ-RL7
SOIC-8-40℃~+105℃ 1 1 1Mbps 2.7V~5.5V 2.7V~5.5V 2500 25kV/us 50ns Bidirectional signal isolation、Multi-voltage domain interface、Power-on reset SOIC-8 Digital Isolators ROHSAnalog DevicesDigital IsolatorsCA-IS3720HS
SOIC-8-40℃~+125℃ 0 100kV/us 150Mbps 2 2 2.5V~5.5V 2.5V~5.5V 3750 8ns Fail-safe output High Level SOIC-8 Digital Isolators ROHSChipanalogDigital IsolatorsCA-IS3721HS
SOIC-8-40℃~+125℃ 1 1 100kV/us 150Mbps 2 2.5V~5.5V 2.5V~5.5V 3750 8ns Fail-safe output High Level SOIC-8 Digital Isolators ROHSChipanalogDigital IsolatorsISO7721D
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SOIC-8-40℃~+125℃ 0 150Kbps 150kV/us 2 3000 3V~5.5V 3V~5.5V 4.5us Fail-safe output High Level SOIC-8 Digital Isolators ROHS2Pai SemiDigital IsolatorsΠ122M31
SOIC-8-40℃~+125℃ 1 1 10Mbps 3000 3V~5.5V 3V~5.5V 75kV/us 8ns Fail-safe output、Multi-voltage domain interface High Level SOIC-8 Digital Isolators ROHS2Pai SemiDigital IsolatorsCA-IS3721CHS
SOIC-8Digital IsolatorsChipanalogΠ120M30
SOIC-8-40℃~+125℃ 0 10Mbps 2 3000 3V~5.5V 3V~5.5V 75kV/us 8ns Fail-safe output、Multi-voltage domain interface Low Level SOIC-8 Digital Isolators ROHS2Pai SemiDigital Isolators