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参数资料
| 型号： | MAX14502AETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 27/41页 |
| 文件大小： | 0K |
| 描述： | IC CARD READER USB-SD 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | USB |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.8 V ~ 3.3 V |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
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MAX14500–MAX14503
Hi-Speed USB-to-SD Card
Readers with Bypass
______________________________________________________________________________________
33
FIELD NAME
READ
WRITE
BITS
RESET
DESCRIPTION
VALID
WHEN
CONTROL: Control Register (0x00)
RFU
R/W
[7:5]
000
Reserved for future use
—
SD2SW
R/W
4
1
Setting of SD port 2 switches:
0 = open
1 = closed
Powered
SD1SW
R/W
3
1
Setting of SD port 1 switches:
0 = open
1 = closed
Powered
MODE
R/W
[2:1]
00
Activates PC USB Hi-Speed SD card reader:
00 = not active
01 = card reader active for SD port 1
10 = card reader active for SD port 2
11 = not active
WAKEUP = 1
WAKEUP
R/W
0
Wakes the internal C:
0 = requests C to shut down
1 = wakes C
Powered
CONFIG1: Configuration Register 1 (0x01)
SD2ONEBIT
R/W
7
0
Force the SD port 2 bus to 1 bit mode:
0 = SD bus 4-bit data mode
1 = SD bus 1-bit data mode
Enter Card
Reader mode
SD1ONEBIT
R/W
6
0
Force the SD port 1 bus to 1 bit mode:
0 = SD bus 4-bit data mode
1 = SD bus 1-bit data mode
Enter Card
Reader mode
INTPULSE
R/W
5
0
INT assertion method:
0 = INT stays asserted until STATUS register is read
1 = INT asserts for 10ms pulse
WAKEUP = 1
INTACTHI
R/W
4
0
INT pin active level:
0 = active-low
1 = active-high
WAKEUP = 1
RFU
R/W
[3:0]
0000
Reserved for future use
—
CONFIG2: Configuration Register 2 (0x02)
RFU
R/W
7
0
Reserved for future use
—
CLKSOURCE
R/W
[6:2]
00000
Sets the configuration for the clock input:
00000 = default
00001 = 19.2MHz rail-to-rail square wave
00010 = 19.2MHz low-amplitude AC-coupled sine wave
00101 = 13MHz rail-to-rail square wave
00110 = 13MHz low-amplitude AC-coupled sine wave
01001 = 12MHz rail-to-rail square wave
01010 = 12MHz low-amplitude AC-coupled sine wave
01101 = 26MHz rail-to-rail square wave
01110 = 26MHz low-amplitude AC-coupled sine wave
All other values = default
Enter Card
Reader mode
Register Map
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相关代理商/技术参数 |
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|---|---|
| MAX14502EVKIT+ | 功能描述:界面开发工具 MAX14502 Eval Kit RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| MAX14503AEWN+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX14503ETL+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX14504EWC+T | 功能描述:模拟开关 IC Dual SPDT Neg Rail w/ +/-VCC Cap RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX14505AEWC+ | 制造商:Maxim Integrated Products 功能描述:DUAL SPDT NEGATIVE RAIL ANALOG SWIT - Rail/Tube |
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