MAX14502AETL+ Maxim Integrated Products, MAX14502AETL+ Datasheet - Page 38

• Manufacturer Part Number: MAX14502AETL+
• Description: IC CARD READER USB-SD 40-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Smart Card Interface ICr

Specifications of MAX14502AETL+

• Applications: USB
• Interface: I²C
• Voltage - Supply: 1.8 V ~ 3.3 V
• Package / Case: 40-TQFN Exposed Pad
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Hi-Speed USB-to-SD Card
Readers with Bypass
38
______________________________________________________________________________________
CONNECTOR
SD CARD
USB
(+2.91V TO +3.4V)
SD INTERFACE
NAND FLASH
V
TM
D+
D-
VBUS
SD SLOT
V
CC
CLK
CMD
DAT 0
DAT 1
DAT 2
DAT 3
SD_DETECT
CLK
CMD
DAT 0
DAT 1
DAT 2
DAT 3
0.1μF
1μF
1μF
6.19kΩ
1%
CCLK2
CCMD2
CDAT 2_0
CDAT 2_1
CDAT 2_2
CDAT 2_3
CCRD_PRST
CCLK 1
CCMD 1
CDAT 1_0
CDAT 1_1
CDAT 1_2
CDAT 1_3
CLDO
V
KVBUS
RREF
V
CD+
CD-
CC
TM
1μF
V
SD
V
SD
VBUS
1.5kΩ
1.8V
LDO
DET
SD CARD INTERFACE LEVEL TRANSLATORS
TRANSCEIVER
SD PORT 2 SWITCHES
USB 2.0
USB SWITCHES
48/52MHz
SD PORT 1 SWITCHES
USB SIE
FLASH
MICROCONTROLLER
OSC
PLL
MAX14500–MAX14503
SRAM
ROM
SQR
V
IO
V
IO
HCRD_PRST
0.1μF
HDAT 2_0
HDAT 2_1
HDAT 2_2
HDAT 2_3
HDAT 1_0
HDAT 1_1
HDAT 1_2
HDAT 1_3
BERR/INT
I2C_SEL
HCMD2
HCMD1
HCLK2
HCLK1
MODE
BUSY
FREF
ADD
SDA
HD+
SCL
RST
HD-
Functional Diagram
TCXO
SD_DETECT
DAT 0
DAT 1
DAT 2
DAT 3
DAT 0
DAT 1
DAT 2
DAT 3
V
CMD
CMD
IO
CLK
CLK
D+
D-
HOST PROCESSOR