MAX14502AETL+ Maxim Integrated Products, MAX14502AETL+ Datasheet - Page 10

• 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
10
TQFN
______________________________________________________________________________________
10
34
32
33
17
16
15
14
31
29
30
—
—
—
—
—
—
—
—
PIN
WLP
D7
D8
D6
D5
G1
G2
D2
D1
D3
A8
E2
E3
F1
F2
B5
A5
F4
F3
E1
CCRD_PRST
HCRD_PRST
CDAT1_3
HDAT1_0
HDAT1_1
HDAT1_2
HDAT1_3
CDAT2_0
CDAT2_1
CDAT2_2
CDAT2_3
HDAT2_0
HDAT2_1
CCMD1
HCMD1
CCMD2
CCLK1
HCLK1
CCLK2
NAME
SD Card 1 Data Bus Analog Switch/Card Reader Interface. CDAT1_3 connects to
DAT3 on the SD card.
SD Card 1 Command Analog Switch/Card Reader Interface. CCMD1 connects to
CMD on the SD card.
SD Card 1 Clock Analog Switch/Card Reader Interface. CCLK1 connects to CLK on
the SD card.
SD Card 1 Analog Switch for Card Present Detection. CCRD_PRST is the card
detection line to the SD socket. When in Pass Thru mode, CCRD_PRST is connected
to HCRD_PRST.
SD Card 1 Data Bus Analog Switch. HDAT1_0 connects to DAT0 on the SD port of
the host µP.
SD Card 1 Data Bus Analog Switch. HDAT1_1 connects to DAT1 on the SD port of
the host µP.
SD Card 1 Data Bus Analog Switch. HDAT1_2 connects to DAT2 on the SD port of
the host µP.
SD Card 1 Data Bus Analog Switch. HDAT1_3 connects to DAT3 on the SD port of
the host µP.
SD Card 1 Command Analog Switch. HCMD1 connects to CMD on the SD port of the
host µP.
S D C ar d 1 C l ock Anal og S w i tch. H C LK1 connects to C LK on the S D p or t of the host µP .
SD Card 1 Analog Switch for Card Present Detection. HCRD_PRST is connected to
CCRD_PRST in Pass Thru mode.
SD Card 2 Data Bus Analog Switch/Card Reader Interface. CDAT2_0 connects to
DAT0 on the SD card.
SD Card 2 Data Bus Analog Switch/Card Reader Interface. CDAT2_1 connects to
DAT1 on the SD card.
SD Card 2 Data Bus Analog Switch/Card Reader Interface. CDAT2_2 connects to
DAT2 on the SD card.
SD Card 2 Data Bus Analog Switch/Card Reader Interface. CDAT2_3 connects to
DAT3 on the SD card.
SD Card 2 Command Analog Switch/Card Reader Interface. CCMD2 connects to
CMD on the SD card.
SD Card 2 Clock Analog Switch/Card Reader Interface. CCLK2 connects to CLK on
the SD card.
SD Card 2 Data Bus Analog Switch. HDAT2_0 connects to DAT0 on the SD port of
the host µP.
SD Card 2 Data Bus Analog Switch. HDAT2_1 connects to DAT1 on the SD port of
the host µP.
Pin Description (continued)
FUNCTION