ZHCSK68B August 2019 – June 2022 TLIN1028-Q1
PRODUCTION DATA
nRST: Float
nRST: Float
The TLIN1028-Q1 has three functional modes of operation: normal, sleep, and standby. The next sections describes these modes as well as how the device moves between the different modes. Figure 9-5 graphically shows the relationship while Table 9-1 shows the state of pins.
| Mode | EN | RXD | LIN BUS Termination | Transmitter | nRST | Comment |
|---|---|---|---|---|---|---|
| Sleep | Low | Floating | Weak Current pull-up | Off | Ground | nRST is internally connected to the LDO output which is pulled to ground in sleep mode. |
| Standby Init | Low | Floating | 45 k? (typical) | Off | Ramping | nRST is internally connected to the LDO output which in standby init mode is pulled low until VCC raises beyond UVCC threshold. |
| Standby from SLP | Low | Low | 45 k? (typical) | Off | VCC | Wake-up event detected, waiting on processors to set EN nRST comes on to VCC once thresholds are met. |
| Standby from Norm | Low | High | 45 k? (typical) | Off | VCC | LDO is on and RXD is high but if a LIN bus wake event takes place RXD is pulled low. |
| Normal | High | LIN Bus Data | 45 k? (typical) | On | VCC | LIN transmission up to 20 kbps |
| TSD Off | NA | Floating | 45 k? (typical) | Off | Ground | nRST is pulled low as the LDO is turned off which means UVCC threshold has been met. |