Electrical Characteristics¶
The electrical characteristics of the CI13322 are shown in the table below.
Table E-1 Electrical Characteristics
| Symbol | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VIN5V | Chip power supply input Note1 | 3.6 | 5 | 5.5 | V |
| AVDD | 3.3V power supply | 2.97 | 3.3 | 3.63 | V |
| VDD11 | 1.1V power supply | 0.99 | 1.1 | 1.21 | V |
| VIH | Input high voltage (3.0V ≤ VDD33 ≤ 3.6V) |
0.7*VDD33 | - | VDD33+0.3 | V |
| VIL | Input low voltage (3.0V ≤ VDD33 ≤ 3.6V) |
-0.3 | - | 0.3*VDD33 | V |
| VOL | Output low voltage @IOL = 12mA | - | - | 0.4 | V |
| VOH | Output high voltage @IOH = 20mA | 2.4 | - | - | V |
| I5V-IO | Drive current of 5V tolerant I/O when output is 3.3V | 20 | - | 33 | mA |
| I3V3-IO | Drive current of 3.3V tolerant I/O when output is 3.3V | 14 | - | 24 | mA |
| ΣIVDD | Total current of all I/Os | - | - | 260 | mA |
| Pde | Total power consumption at 5V supply with external 1.1V VDD11 supply during normal operation (TA = 25°C) | 40 | - | 90 | mW |
| Pdi | Total power consumption at 5V supply with internal LDO during normal operation (TA = 25°C) | 125 | - | 255 | mW |
| RC Oscillator Accuracy Note5 |
TA = -40 to 85°C | -1.5 | - | +1.5 | % |
| Top | Operating temperature range | -40 | - | +85 | °C |
| Tst | Storage temperature range | -55 | - | +150 | °C |
Note4: Ripple should be less than 300mVp-p.
Note5: Due to semiconductor technology principles and characteristics, the built-in RC oscillator may experience frequency drift (±1.5%) in high/low temperature environments. The CI1324X series features built-in baud rate adaptation circuitry to ensure normal communication with the MCU across temperature variations. If your application requires highly accurate clocking, please use chips with external crystal oscillators and corresponding application solutions provided by our company.