SFFS542 October 2022 ISO1640-Q1
4.2 ISO1640-Q1 in 16-DW Package
#GUID-0CFA394A-02FB-4C17-8EB9-D5B503E1523C shows the ISO1640-Q1 pin diagram for the 16-DW package. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the ISO1640-Q1 data sheet.
Figure 4-2 Pin Diagram (16-DW Package)Table 4-6 Pin FMA for Device Pins
Short-Circuited to Ground
| Pin Name | Pin No. | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|
| GND1 | 1 | Device continues to function as expected. Normal operation. | D |
| NC | 2 | Device continues to function as expected. Normal operation. | D |
| VCC1 | 3 | No power to the device on side-1. Observe that the absolute maximum ratings for SDA1/SCL1 are met; otherwise device damage may be plausible. | A |
| NC | 4 | Device continues to function as expected. Normal operation. | D |
| SDA1 | 5 | SDA1 stuck to low, makes SDA2 also low. Communication corrupted to and from the master node. | B |
| SCL1 | 6 | SCL1 stuck to low, makes SCL2 also low. Communication corrupted to and from the master. | B |
| GND1 | 7 | Device continues to function as expected. Normal operation. | D |
| NC | 8 | Device continues to function as expected. Normal operation. | D |
| GND2 | 9 | Device continues to function as expected. Normal operation. | D |
| NC | 10 | Device continues to function as expected. Normal operation. | D |
| SCL2 | 11 | SCL2 stuck low. Data communication from master SCL1 to slave SCL2 lost. Communication corrupted. | B |
| SDA2 | 12 | SDA2 stuck low, makes SDA1 also low. Communication corrupted to and from the master node. | B |
| NC | 13 | Device continues to function as expected. Normal operation. | D |
| VCC2 | 14 | No power to the device on side-2. Observe that the absolute maximum ratings for SDA2/SCL2 are met; otherwise device damage may be plausible. | A |
| NC | 15 | Device continues to function as expected. Normal operation. | D |
| GND2 | 16 | Device continues to function as expected. Normal operation. | D |
Table 4-7 Pin FMA for Device Pins
Open-Circuited
| Pin Name | Pin No. | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|
| GND1 | 1 | Device continues to function as expected. Pin 7 sontinue to function as ground. Normal operation. | D |
| NC | 2 | Device continues to function as expected. Normal operation. | D |
| VCC1 | 3 | Operation undetermined. Either device is unpowered and SDA2/SCL2 are pulled to logic high to external pull-up resistors or through internal ESD diode on SDA1/SCL1 pin, device can power up if SDA1/SCL1 are logic high. If abs max rating of SDA1/SCL1 is not observed, device damage plausible. | A |
| NC | 4 | Device continues to function as expected. Normal operation. | D |
| SDA1 | 5 | SDA1 stuck to low, makes SDA2 also low. Communication corrupted to and from the master node. | B |
| SCL1 | 6 | SCL1 stuck to low, makes SCL2 also low. Communication corrupted to and from the master. | B |
| GND1 | 7 | Device continues to function as expected . Pin 1 sontinue to function as ground. Normal operation. | D |
| NC | 8 | Device continues to function as expected. Normal operation. | D |
| GND2 | 9 | Device continues to function as expected.Pin 16 sontinue to function as ground. Normal operation. | D |
| NC | 10 | Device continues to function as expected. Normal operation. | D |
| SCL2 | 11 | SCL2 stuck low. Data communication from master SCL1 to slave SCL2 lost. Communication corrupted. | B |
| SDA2 | 12 | SDA2 stuck low, makes SDA1 also low. Communication corrupted to and from the master node. | B |
| NC | 13 | Device continues to function as expected. Normal operation. | D |
| VCC2 | 14 | No power to the device on side-2. Observe that the absolute maximum ratings for SDA2/SCL2 are met; otherwise device damage may be plausible. | A |
| NC | 15 | Device continues to function as expected. Normal operation. | D |
| GND2 | 16 | Device continues to function as expected. Pin 1 sontinue to function as ground. Normal operation. | D |
Table 4-8 Pin FMA for Device Pins
Short-Circuited to Adjacent Pin
| Pin Name | Pin No. | Shorted to | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|---|
| GND1 | 1 | NC | No effect. Normal operation. | D |
| NC | 2 | VCC1 | No effect. Normal operation. | D |
| VCC1 | 3 | NC | No effect. Normal operation. | D |
| NC | 4 | SDA1 | No effect. Normal operation. | D |
| SDA1 | 5 | SCL1 | I2C Communication corrupted. | B |
| SCL1 | 6 | GND1 | SCL1 stuck to low, makes SCL2 also low. Communication corrupted to and from the master. | B |
| GND1 | 7 | NC | No effect. Normal operation. | D |
| NC | 8 | GND1 | No effect. Normal operation. | D |
| GND2 | 9 | NC | No effect. Normal operation. | D |
| NC | 10 | SCL2 | No effect. Normal operation. | D |
| SCL2 | 11 | SDA2 | I2C Communication corrupted. | B |
| SDA2 | 12 | NC | No effect. Normal operation. | D |
| NC | 13 | VCC2 | No effect. Normal operation. | D |
| VCC2 | 14 | NC | No effect. Normal operation. | D |
| NC | 15 | GND2 | No effect. Normal operation. | D |
| GND2 | 16 | NC | No effect. Normal operation. | D |
Table 4-9 Pin FMA for Device Pins
Short-Circuited to
supply
| Pin Name | Pin No. | Description of Potential Failure Effect(s) | Failure Effect Class |
|---|---|---|---|
| GND1 | 1 | Device side-1 unpowered. Observe that the absolute maximum ratings for SCL1/SDA1 pins of the device are met, otherwise device damage may be plausible. | A |
| NC | 2 | No effect. Normal operation. | D |
| VCC1 | 3 | No effect. Normal operation. | D |
| NC | 4 | No effect. Normal operation. | D |
| SDA1 | 5 | SDA1 stuck high. Communication corrupted. If SDA2 is driven logic low for extended duration, SDA1 stuck high creates short between supply and ground, possible device damage. | A |
| SCL1 | 6 | SCL1 stuck high does not allow clock transitions to happen. I2C communication corrupted. | B |
| GND1 | 7 | Device side-1 unpowered. Observe that the absolute maximum ratings for SCL1/SDA1 pins of the device are met, otherwise device damage may be plausible. | A |
| NC | 8 | No effect. Normal operation. | D |
| GND2 | 9 | Device side-2 unpowered. Observe that the absolute maximum ratings for SCL2/SDA2 pins of the device are met, otherwise device damage may be plausible. | A |
| NC | 10 | No effect. Normal operation. | D |
| SCL2 | 11 | SCL2 stuck high. If SCL1 is driven low for extended duration, SCL2 stuck high creates a path for high current from supply to ground with possible device damage. | A |
| SDA2 | 12 | SDA2 stuck high. Communication corrupted. If SDA1 is driven logic low for extended duration, SDA2 stuck high creates short between supply and ground, possible device damage. | A |
| NC | 13 | No effect. Normal operation. | D |
| VCC2 | 14 | No effect. Normal operation. | D |
| NC | 15 | No effect. Normal operation. | D |
| GND2 | 16 | Device side-2 unpowered. Observe that the absolute maximum ratings for SCL2/SDA2 pins of the device are met, otherwise device damage may be plausible. | A |