引脚定义与内部结构
| 引脚 | 符号 | 名称 |
|---|---|---|
| 5 | Pin Definitions | |
| 4 | OIPG | |
| 18 | CTS | |
| 17 | SUSPEND | |
| 16 | NC | |
| 15 | SUSPENDb | |
| 2 | OIPG | |
| 3 | OIPG | |
| 20 | pin QFN | |
| 1 | All dimensions shown are in millimeters (mm) unless otherwise noted. |
数据来源:原厂规格书引脚图
关键参数速览
- 正向电流 IF
- specification. If the 5 V
产品特点 Features
- firmware complexity and reducing development time.
- These highly-integrated USB-to-UART bridge controllers provide a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space.
- CP2102N devices enable quick USB connectivity with minimal development effort.
- CP2102N is ideal for a wide range of applications, including the following:
- Medical equipment
- POS terminals
- Data loggers
- USB dongles
- Gaming controllers
- CP2102N
- USB Battery
- Remote Voltage
- Charger
- Wakeup Regulator
- Detect
- USB Connector
绝对最大额定值 Absolute Maximum Ratings(TA = 25°C)
超过下表数值可能造成器件永久损坏,设计时请留余量。
| 参数 | 符号 | 测试条件 | 最小 | 最大 | 单位 |
|---|---|---|---|---|---|
| Storage Temperature | T | -65 | 150 | °C | |
| Voltage on VDD | V | GND-0.3 | 4.2 | V | |
| Voltage on VIO2 | V IO | GND-0.3 | 4.2 | V | |
| Voltage on VREGIN | V | GND-0.3 | 5.8 | V | |
| Voltage on D+ or D- | V | GND-0.3 | V +0.3 | V | |
| Voltage on UART pins, GPIO, | VBUS, V | V > 3.3 V | GND-0.3 | 5.8 | V |
| USB pin | V IO < 3.3 V | GND-0.3 | V IO +2.5 | V | |
| Total Current Sunk into Supply | Pin I | ─ | 400 | mA | |
| Total Current Sourced out of | Ground I | 400 | ─ | mA | |
| Current Sourced or Sunk by any | UART I | -100 | 100 | mA | |
| Operating Junction Temperature | T | -40 | 105 | °C |
数据来源:原厂规格书
电气特性 Electrical Characteristics(TA = 25°C)
| 参数 | 符号 | 测试条件 | 最小 | 典型 | 最大 | 单位 |
|---|---|---|---|---|---|---|
| CP2102N | Data Sheet | |||||
| VDD Supply Monitor Threshold | V | 1.95 | 2.05 | 2.15 | V | |
| Power-On Reset (POR) Threshold | V | Rising Voltage on VDD | — | 1.2 | — | V |
| Falling Voltage on VDD | 0.75 | — | 1.36 | V | ||
| VDD Ramp Time | t | Time to V > 2.2 V | 10 | — | — | μs |
| Reset Delay from POR | t | Relative to V > V | 3 | 10 | 31 | ms |
| Reset Delay from non-POR | source t | Time between release of | reset — | 50 | — | μs |
| RSTb Low Time to Generate | Reset t | 15 | — | — | μs | |
| Table 3.4. Configuration | Memory | |||||
| V DD Voltage During Programming | 1 V PROG | 3.0 | — | 3.6 | V | |
| Endurance (Write/Erase Cycles) | N | 20k | 100k | — | Cycles | |
| Table 3.5. Internal | Oscillator | |||||
| Power Supply Sensitivity | PSS | T = 25 °C | — | 0.02 | — | %/V |
| Temperature Sensitivity | TS | V = 3.0 V | — | 45 | — | ppm/°C |
| CP2102N | Data Sheet | |||||
| Table 3.6. 5V Voltage | Regulator | |||||
| Input Voltage Range 1 | V REGIN | 3.0 | — | 5.25 | V | |
| Output Voltage on VDD 2 | V REGOUT | Output Current = 1 to 100 | mA 3.1 | 3.3 | 3.6 | V |
| Regulation range (VREGIN | ≥ 4.1V) | |||||
| Output Current = 1 to 100 | mA — | V – | — | V | ||
| Dropout range (VREGIN < | 4.1V) | |||||
| Output Current 2 | I REGOUT | — | — | 100 | mA | |
| Dropout Voltage | V | Output Current = 100 mA | — | — | 0.8 | V |
| 2.Output current is total | regulator output, | including any current required by | the device. | |||
| CP2102N | Data Sheet | |||||
| Output High Voltage (High | Drive) V | I = -7 mA, V ≥ 3.0 V | V - 0.7 | — | — | V |
| OH | OH IO | IO | ||||
| I = -3.3 mA, 2.2 V ≤ V OH IO | < 3.0 V V x 0.8 IO | — | — | V | ||
| I = -1.8 mA, 1.71 V ≤ V | < 2.2 V | |||||
| Output Low Voltage (High | Drive) V | I = 13.5 mA, V ≥ 3.0 V | — | — | 0.6 | V |
| I = 7 mA, 2.2 V ≤ V < OL IO | 3.0 V — | — | V x 0.2 IO | V | ||
| I = 3.6 mA, 1.71 V ≤ V | < 2.2 V | |||||
| Output High Voltage (Low | Drive) V | I = -4.75 mA, V ≥ 3.0 | V V - 0.7 | — | — | V |
| OH | OH IO | IO | ||||
| I = -2.25 mA, 2.2 V ≤ V | < 3.0 V V x 0.8 | — | — | V | ||
| I = -1.2 mA, 1.71 V ≤ V | < 2.2 V | |||||
| Output Low Voltage (Low Drive) | V | I = 6.5 mA, V ≥ 3.0 V | — | — | 0.6 | V |
| I = 3.5 mA, 2.2 V ≤ V OL IO | < 3.0 V — | — | V x 0.2 IO | V | ||
| I = 1.8 mA, 1.71 V ≤ V | < 2.2 V | |||||
| Input High Voltage | V | V - 0.6 | — | — | V | |
| Input Low Voltage | V | — | — | 0.6 | V | |
| Pin Capacitance | C | — | 7 | — | pF | |
| Weak Pull-Up Current | I | V = 3.6 | -30 | -20 | -10 | μA |
| Input Leakage (Pullups off or | Ana- I | GND < V < V | -1.1 | — | 1.1 | μA |
| Input Leakage Current with V | I | V < V < V +2.0 V | 0 | 5 | 150 | μA |
| RS485 Setup Time before Start | t | 0 | — | 64.02 | ms | |
| RS485 Hold Time after Stop | Bit1 t RS485H | 0 | — | 64.02 | ms | |
| TX Toggle Rate | f | — | 20 | — | Hz | |
| RX Toggle Rate | f | — | 20 | — | Hz | |
| CP2102N | Data Sheet | |||||
| Output High Voltage | V | V ≥ 3.0V | 2.8 | — | — | V |
| Output Low Voltage | V | V ≥ 3.0V | — | — | 0.8 | V |
| Output Crossover Point | V | 1.3 | — | 2.0 | V | |
| Output Impedance | Z | Driving High | 28 | 36 | 44 | Ω |
| Driving Low | 28 | 36 | 44 | |||
| Pull-up Resistance | R | Full Speed (D+ Pull-up) | 1.425 | 1.5 | 1.575 | kΩ |
| Output Rise Time | T | Full Speed | 4 | — | 20 | ns |
| Output Fall Time | T | Full Speed | 4 | — | 20 | ns |
| Differential Input | V | | (D+) - (D-) | | 0.2 | — | — | V |
| Differential Input Common | Mode V | 0.8 | — | 2.5 | V | |
| Input Leakage Current | I | Pullups Disabled | — | <1.0 | — | μA |
| Table 3.9. Thermal | Conditions | |||||
| Thermal Resistance (Junction | to θ | QFN20 Packages | ─ | 60 | ─ | °C/W |
| QFN24 Packages | ─ | 30 | ─ | °C/W | ||
| QFN28 Packages | ─ | 26 | ─ | °C/W | ||
| Thermal Resistance (Junction | to θ | QFN20 Packages | ─ | 32.9 | ─ | °C/W |
| QFN24 Packages | ─ | 24.2 | ─ | °C/W | ||
| QFN28 Packages | ─ | 18.8 | ─ | °C/W | ||
| Thermal Characterization | Parame- Ψ | QFN20 Packages | ─ | 0.88 | ─ | °C/W |
| QFN24 Packages | ─ | 0.3 | ─ | °C/W | ||
| QFN28 Packages | ─ | 0.3 | ─ | °C/W | ||
| CP2102N Data Sheet |
订货信息与供货形式
| 包装 | and | 包装2 | (Optional) |
|---|---|---|---|
| Tape | and | Reel | (Optional) |
应用领域 Applications
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