- 您现在的位置：买卖IC网 > Datasheet目录474 > MAX66040K-000AA+ (Maxim Integrated)ISO CARD SECURE MEMORY Datasheet资料下载
参数资料
| 型号： | MAX66040K-000AA+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/25页 |
| 文件大小： | 0K |
| 描述： | ISO CARD SECURE MEMORY |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 系列： | iButton® |
| RF 型： | 读/写 |
| 频率： | 13.56MHz |
| 特点： | ISO14443-B |
| 封装/外壳： | 遥控钥匙 |
| 供应商设备封装： | 遥控钥匙 |
| 包装： | 散装 |
ABRIDGED DATA SHEET
ISO/IEC 14443 Type B-Compliant
Secure Memory
The path from slave to master uses an 847.5kHz sub-
carrier, which is modulated using binary phase-shift key
(BPSK) modulation. Depending on the data rate, the
transmission of a single bit takes 8, 4, 2 or 1 subcarrier
cycles. The slave generates the subcarrier only when
needed; i.e., starting shortly before an SOF and ending
shortly after an EOF. The standard defines the phase of
the subcarrier before the SOF as 0° reference, which
corresponds to logic 1. The phase of the subcarrier
changes by 180° whenever there is a binary transition
in the character to be transmitted (Figure 9). The first
phase transition represents a change from logic 1 to
logic 0, which coincides with the beginning of the SOF.
The BPSK modulated subcarrier is used to modulate
the load on the device’s antenna (Figure 10).
DATA TO BE TRANSMITTED
847kHz SUBCARRIER
BPSK MODULATION
OR
1
0
1
TRANSMISSION OF A SINGLE BIT
POWER-UP DEFAULT = EIGHT CYCLES OF 847kHz (9.44 μ s)
CAN BE REDUCED TO FOUR, TWO, OR ONE SUBCARRIER CYCLES FOR COMMUNICATION IN THE ACTIVE STATE.
INDICATES 180 ° PHASE CHANGE (POLARITY REVERSAL)
Figure 9. Uplink: BPSK Modulation of the 847.5kHz Subcarrier
DATA*
1
0
1
TRANSMISSION OF A SINGLE BIT
SHOWN AS EIGHT CYCLES OF THE 847kHz SUBCARRIER
*DEPENDING ON THE INITIAL PHASE, THE DATA POLARITY MAY BE INVERSE.
Figure 10. Uplink: Load Modulation of the RF Field by the BPSK Modulated Subcarrier
_______________________________________________________________________________________
9
相关PDF资料 |
PDF描述 |
|---|---|
| MAX6605MXK/V+T | IC TEMP SENSOR ANLG LP SC70-5 |
| MAX6608IUK+T | IC TEMP SENSOR ANLG SOT23-5 |
| MAX66100K-000AA+ | IC RFID UID 64BIT TYPE B KEY FOB |
| MAX6611AUT+T | IC TEMP SENS LOW PWR SOT23-6 |
| MAX66120K-000AA+ | IC RFID UID 1KB TYPEB MEM KEYFOB |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX66040K-000AA+ | 功能描述:RFID应答器 RFID 14443 ID 1K SECURE TSTD RoHS:否 制造商:Murata 存储容量:512 bit 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| MAX66040K-00AA+ | 制造商:Maxim Integrated Products 功能描述:ISO/IEC 14443 TYPE B-COMPLIANT SECURE MEMORY FOB - Rail/Tube |
| MAX6604AAHA+ | 功能描述:板上安装温度传感器 Precision Temperature Monitor for DDR Memory Modules RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6604AAHA+T | 功能描述:板上安装温度传感器 NULL RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6604AATA+ | 制造商:Maxim Integrated Products 功能描述:PRECISION TEMPERATURE MONITOR FOR DDR MEMORY MODULES - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。