DS21T09S OverviewIt is possible to terminate a transmission line with a device matching the impedance of the line, which is known as 9 termination. A well-known feature of the 28-SOIC (0.295, 7.50mm Width) is its low packaging cost. Materials used for packaging are the same as those used by Tube. The PCB is mounted using Surface Mount. It is recommended that the Operating Temperature does not exceed 0°C~70°C. Standard applications can be carried out with this SCSI-qualified material. Normal operation is ensured by a 4V~5.5V Supply Voltage. Base Part Number DS21T09 is useful for finding related parts. There are specific uses for the 28 pins. A 18 signal line is one that is exclusively used for transmitting signals or intelligence, or for public or private communication. Optimal efficiency requires a supply voltage of 5V. On it is a Surface Mount-mount. It is common for computers and other communication devices to use pronged contacts, called 28 pins. It is necessary to have 5V Power Supplies in order for the system to operate.
DS21T09S Features9 terminations
Tube package
DS21T09 family
28 pin count
18 signal lines
28 pins
5V power supplies
DS21T09S ApplicationsThere are a lot of Maxim Integrated
DS21T09S Signal Terminators applications.
Data Routers
Programmable logic controller
Remote input module
Data Networking
PCI Cards
Telecommunication Equipment
Data Routers
Data Switches
Programmable logic controller and remote input modules
High speed protected termination for digital input with serialized SPI output
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 28-SOIC (0.295, 7.50mm Width) |
| Number of Pins | 28 |
| Operating Temperature | 0°C~70°C |
| Packaging | Tube |
| JESD-609 Code | e0 |
| Part Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 9 |
| Type | SCSI |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Voltage - Supply | 4V~5.5V |
| Terminal Position | DUAL |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 240 |
| Number of Functions | 1 |
| Supply Voltage | 5V |
| Terminal Pitch | 1.27mm |
| Reach Compliance Code | not_compliant |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Base Part Number | DS21T09 |
| Pin Count | 28 |
| Qualification Status | Not Qualified |
| Power Supplies | 5V |
| Differential Output | NO |
| Number of Signal Lines | 18 |
| Pull-up Resistance-Nom | 110Ohm |
| Height Seated (Max) | 2.65mm |
| Width | 7.5mm |
| RoHS Status | Non-RoHS Compliant |
| Lead Free | Contains Lead |
DS21T09S Datasheet
+8613715157867