參數(shù)資料
型號: 73S1217F-68MR/F/PE
廠商: Maxim Integrated Products
文件頁數(shù): 119/140頁
文件大?。?/td> 0K
描述: IC SOC SMART CARD READER 68QFN
標準包裝: 2,500
系列: *
73S1217F Data Sheet
DS_1217F_002
1 Hardware Description
1.1 Pin Description
Table 1: 73S1217 Pinout Description
Pin Name
Pin
(68
QFN)
Type
Equivalent
Circuit*
Description
X12IN
10
I
MPU/USB clock crystal oscillator input pin. A 12MHz crystal
is required for USB operation. A 1M resistor is required
between pins X12IN and X12OUT.
X12OUT
11
O
MPU/USB clock crystal oscillator output pin.
X32IN
8
I
RTC clock crystal oscillator input pin. A 32768Hz crystal is
required for low-power RTC operation.
X32OUT
7
O
RTC clock crystal oscillator output pin.
DP
26
IO
USB D+ IO pin, requires series 24 resistor.
DM
27
IO
USB D- IO pin, requires series 24 resistor.
ROW(5:0) 0
1
2
3
4
5
21
22
24
33
36
37
I
Keypad row input sense.
COL(4:0) 0
1
2
3
4
12
13
14
16
19
O
Keypad column output scan pins.
USR(7:0) 0
1
2
3
4
5
6
7
35
34
32
31
30
29
23
20
IO
General-purpose user pins, individually configurable as
inputs or outputs or as external input interrupt ports.
SCL
5
O
I
2C (master mode) compatible Clock signal. Note: the pin is
configured as an open drain output. When the I2C interface
is being used, an external pull up resistor is required. A
value of 3K is recommended.
SDA
6
IO
I
2C (master mode) compatible data I/O. Note: this pin is
bi-directional. When the pin is configured as output, it is an
open drain output. When the I2C interface is being used, an
external pull up resistor is required. A value of 3K is
recommended.
RXD
17
I
Serial UART Receive data pin.
TXD
18
O
Serial UART Transmit data pin.
8
Rev. 1.2
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