米6体育平台手机版_好二三四 (TI) 动态近场通信 (NFC)/射频识别 (RFID) 接口应答器 RF430CL331H 是一款 NFC 标签类型 4 器件,可结合一个非接触式 NFC/RFID 接口和一个有线 I2C 接口将器件连接到主机。NDEF 消息可通过集成的 I2C 串行通信接口读写,也可通过支持高达 848kbps 速率的集成 ISO/IEC 14443 标准类型 B RF 接口进行非接触式访问或更新。
该器件按主机控制器的需求请求响应 NFC 类型 4 命令,每次仅在其缓存中存储部分 NDEF 消息。这使得 NDEF 消息的大小仅受主机控制器的存储器容量以及规范的限制。
该器件支持读缓存、预取和写自动确认 功能, 可提高数据吞吐量。
该器件可利用简单而直观的 NFC 连接切换来替代载波方式,只需一次点击操作即可完成诸如 Bluetooth®, Bluetooth®低功耗 (BLE) 或 Wi-Fi 的配对过程或认证过程。
作为一个常见 NFC 接口,RF430CL331H 使得终端设备能够与启用 NFC 的智能手机、平板电脑和笔记本电脑这类快速发展的基础设施进行通信。
Figure 3-1 shows the pinout for the 14-pin PW package.
Figure 3-2 shows the pinout for the 16-pin RGT package.
PIN NUMBER | SIGNAL NAME | SIGNAL TYPE (1) | BUFFER TYPE (2) | POWER SOURCE | RESET STATE (3) | |
---|---|---|---|---|---|---|
PW | RGT | |||||
1 | 15 | VCC | PWR | Power | VCC | N/A |
2 | 1 | ANT1 | RF | Analog | – | N/A |
3 | 2 | ANT2 | RF | Analog | – | N/A |
4 | 3 | RST | I | LVCMOS | VCC | PU |
5 | 4 | E0 | I | LVCMOS | VCC | OFF |
6 | 5 | E1 | I | LVCMOS | VCC | OFF |
7 | 6 | E2 | I | LVCMOS | VCC | OFF |
8 | 7 | INTO | O | LVCMOS | VCC | OFF |
9 | 8 | I2C_READY | O | LVCMOS | VCC | DRIVE1 |
10 | 9 | I2C_SIGNAL | O | LVCMOS | VCC | DRIVE1 |
11 | 10 | SCL | I/O | LVCMOS | VCC | OFF |
12 | 11 | SDA | I/O | LVCMOS | VCC | OFF |
13 | 12 | VCORE | PWR | Power | VCC | N/A |
14 | 13 | VSS | PWR | Power | VCC | N/A |
– | 14 | NC | – | – | – | – |
– | 16 | NC | – | – | – | – |
Table 3-2 describes the signals.
FUNCTION | SIGNAL NAME | PIN NUMBER | I/O (1) | DESCRIPTION | |
---|---|---|---|---|---|
PW | RGT | ||||
Power | VCC | 1 | 15 | PWR | 3.3-V power supply |
VCORE | 13 | 12 | PWR | Regulated core supply voltage | |
VSS | 14 | 13 | PWR | Ground supply | |
RF | ANT1 | 2 | 1 | RF | Antenna input 1 |
ANT2 | 3 | 2 | RF | Antenna input 2 | |
Serial communication | E0 | 5 | 4 | I | I2C address select 0 |
E1 | 6 | 5 | I | I2C address select 1 | |
E2 | 7 | 6 | I | I2C address select 2 | |
I2C_READY | 9 | 8 | O | High indicates that I2C communication can be started. Low indicates that I2C communication must not be started. | |
I2C_SIGNAL | 10 | 9 | O | Low indicates that a wait time extension command is automatically being sent. I2C communication does not have to be stopped. | |
SCL | 11 | 10 | I/O | I2C clock | |
SDA | 12 | 11 | I/O | I2C data | |
System | INTO | 8 | 7 | O | Interrupt output |
RST | 4 | 3 | I | Reset input (active low) (2) | |
No connect | NC | – | 14 16 |
– | Leave open, no connection |
None of the pins on this device are multiplexed.
BUFFER TYPE (STANDARD) | NOMINAL VOLTAGE | HYSTERESIS | PU OR PD | NOMINAL PU OR PD STRENGTH (µA) | OUTPUT DRIVE STRENGTH (mA) | OTHER CHARACTERISTICS |
---|---|---|---|---|---|---|
LVCMOS | 3.3 V | Y | N/A | See Section 4.6, Electrical Characteristics, Digital Inputs | See Section 4.7, Electrical Characteristics, Digital Outputs | |
Analog, RF | 3.3 V | N | N/A | N/A | N/A | See analog modules in Section 4, Specifications, for details |
Power | 3.3 V | Y with SVS on | N/A | N/A | N/A |
Leave no connect (NC) pins unconnected.
Leave unused outputs unconnected.
Drive or pull unused inputs high or low.