
TJA1021
LIN 2.1/SAE J2602 transceiver
The TJA1021 is the interface between the Local Interconnect Network (LIN) master/slave protocol controller and the physical bus in a LIN. It is primarily intended for in-vehicle sub-networks using baud rates from 1 kBd up to 20 kBd and is LIN 2.1/SAE J2602 compliant. The TJA1021 is pin-to-pin compatible with the TJA1020 with an improved ElectroStatic Discharge (ESD) specification.
The transmit data stream of the protocol controller at the transmit data input (TXD) is converted by the TJA1021 into a bus signal with optimized slew rate and wave shaping to minimize ElectroMagnetic Emission (EME). The LIN bus output pin is pulled HIGH via an internal termination resistor. For a master application, an external resistor in series with a diode should be connected between pin INH or pin VBAT and pin LIN. The receiver detects the data stream at the LIN bus input pin and transfers it via pin RXD to the microcontroller.
In Sleep mode, the power consumption of the TJA1021 is very low. In failure modes, the power consumption is reduced to a minimum.
2.1 General
2.2 Low power management
2.3 Protection mechanisms
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| TJA1021T/10/CM | TJA1021T/10/CM,118 | 9352 967 82118 | Development | SOT96 | Tape reel smd | Standard Marking | |
| TJA1021T/20/C | TJA1021T/20/C,112 | 9352 853 94112 | Volume production | SOT96 | Tube | Standard Marking | |
| TJA1021T/20/C | TJA1021T/20/C,118 | 9352 853 94118 | Volume production | SOT96 | Tape reel smd | Standard Marking | |
| TJA1021T/20/C | TJA1021T/20/C,518 | 9352 853 94518 | Volume production | SOT96 | Reel Dry Pack, SMD, 13" | Standard Marking | |
| TJA1021T/10/C | TJA1021T/10/C,118 | 9352 853 93118 | Volume production | SOT96 | Tape reel smd | Standard Marking | |
| TJA1021T/10/C | TJA1021T/10/C,112 | 9352 853 93112 | Volume production | SOT96 | Tube | Standard Marking | |
| TJA1021TK/20/C | TJA1021TK/20/C,118 | 9352 853 96118 | Volume production | SOT782-1 (HVSON8) | Reel Pack, SMD, 13" | Standard Marking | |
| TJA1021TK/10/C/S900 | TJA1021TK/10/C/S90 | 9352 936 36118 | Volume production | SOT782-1 (HVSON8) | Reel Pack, SMD, 13" | Standard Marking | |
| TJA1021TK/10/C | TJA1021TK/10/C,118 | 9352 853 95118 | Volume production | SOT782-1 (HVSON8) | Reel Pack, SMD, 13" | Standard Marking |
The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| TJA1021T/20 | TJA1021T/20,118 | 9352 843 51118 | Discontinued Replacement product | SOT96 | Tape reel smd | Standard Marking | |
| TJA1021T/20 | TJA1021T/20,112 | 9352 843 51112 | Withdrawn Replacement product | SOT96 | Tube | Standard Marking | |
| TJA1021T/10 | TJA1021T/10,112 | 9352 843 49112 | Withdrawn Replacement product | SOT96 | Tube | Standard Marking | |
| TJA1021T/10 | TJA1021T/10,118 | 9352 843 49118 | Withdrawn Replacement product | SOT96 | Tape reel smd | Standard Marking | |
| TJA1021T | - | 9352 812 44118 | Withdrawn Replacement product | SOT96 | Tape reel smd | Standard Marking | |
| TJA1021TK/10 | TJA1021TK/10,118 | 9352 843 52118 | Withdrawn Replacement product | SOT782-1 (HVSON8) | Reel Pack, SMD, 13" | Standard Marking | |
| TJA1021TK/20 | TJA1021TK/20,118 | 9352 843 53118 | Withdrawn Replacement product | SOT782-1 (HVSON8) | Reel Pack, SMD, 13" | Standard Marking |
| Type number | Orderable part number | Chemical content | RoHS | Leadfree conversion date | RHF | IFR (FIT) | MTBF (hours) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|
| TJA1021T/10/CM | TJA1021T/10/CM,118 | TJA1021T/10/CM | Always Pb-free | 1 | 1 | ||||
| TJA1021T/20/C | TJA1021T/20/C,112 | TJA1021T/20/C | Always Pb-free | 1 | 1 | ||||
| TJA1021T/20/C | TJA1021T/20/C,118 | TJA1021T/20/C | Always Pb-free | 1 | 1 | ||||
| TJA1021T/20/C | TJA1021T/20/C,518 | TJA1021T/20/C | Always Pb-free | 1 | 1 | ||||
| TJA1021T/10/C | TJA1021T/10/C,118 | TJA1021T/10/C | Always Pb-free | 1 | 1 | ||||
| TJA1021T/10/C | TJA1021T/10/C,112 | TJA1021T/10/C | Always Pb-free | 1 | 1 | ||||
| TJA1021TK/20/C | TJA1021TK/20/C,118 | TJA1021TK/20/C | Always Pb-free | 1 | 1 | ||||
| TJA1021TK/10/C/S900 | TJA1021TK/10/C/S90 | TJA1021TK/10/C/S900 | Always Pb-free | 1 | 1 | ||||
| TJA1021TK/10/C | TJA1021TK/10/C,118 | TJA1021TK/10/C | Always Pb-free | 1 | 1 |
The variants in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.
| Type number | Orderable part number | Chemical content | RoHS | Leadfree conversion date | RHF | IFR (FIT) | MTBF (hours) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|
| TJA1021T/20 | TJA1021T/20,118 | TJA1021T/20 | Always Pb-free | NA | 1 | ||||
| TJA1021T/20 | TJA1021T/20,112 | TJA1021T/20 | Always Pb-free | NA | 1 | ||||
| TJA1021T/10 | TJA1021T/10,112 | Always Pb-free | NA | 1 | |||||
| TJA1021T/10 | TJA1021T/10,118 | Always Pb-free | NA | 1 | |||||
| TJA1021T | - | Always Pb-free | |||||||
| TJA1021TK/10 | TJA1021TK/10,118 | Always Pb-free | |||||||
| TJA1021TK/20 | TJA1021TK/20,118 | Always Pb-free |
| Type | Format | Title | Date |
|---|---|---|---|
| Data sheet | LIN 2.1/SAE J2602 transceiver (v.7.0) | 2011-03-25 |
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