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| 型号： | TMDXBDKFP5515 |
| 厂商： | Texas Instruments |
| 文件页数： | 37/159页 |
| 文件大小： | 0K |
| 描述： | KIT DEV FINGERPRINT C5515 |
| 标准包装： | 1 |
| 传感器类型： | 指纹 |
| 接口： | USB |
| 电源电压： | 5V |
| 嵌入式： | 是，MCU，16 位 |
| 已供物品： | 板，扩展板，线缆，迷你型 DVD，传感器 |
| 已用 IC / 零件： | C5515 |
| 产品目录页面： | 718 (CN2011-ZH PDF) |
| 其它名称： | 296-27452 |
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SPRS645F – AUGUST 2010 – REVISED OCTOBER 2013
2.5.12 SAR ADC Terminal Functions
Table 2-17. 10-Bit SAR ADC Terminal Functions
SIGNAL
NAME
NO.
TYPE (1)
(2)
OTHER (3)
(4)
DESCRIPTION
SAR ADC
GPAIN0: General -Purpose Output and Analog Input pin 0. This pin is demuxed
internally into ADC Channels 0, 1, & 2. GPAIN0 can also be used as a general-
purpose open-drain output. This pin is unique among the GPAIN pins in that it is the
GPAIN0
D10
I/O
V DDA_ANA
only pin that is 3.6 V-tolerant to support measuring a battery voltage. GPAIN0 can
accommodate input voltages from 0 V to 3.6 V; although, the ADC is unable to
accept signals greater than V DDA_ANA without clamping. ADC Channel 1 is capable
of switching in an internal resistor divider that has a divide ratio of approximately 1/8.
GPAIN1: General -Purpose Output and Analog Input pin 1. This pin is connected to
ADC Channel 3. GPAIN1 can be used as a general-purpose output if certain
requirements are met (see the following note). GPAIN1 can accommodate input
voltages from 0 V to V DDA_ANA .
GPAIN1
A11
I/O
V DDA_ANA
Note: If the ANA_LDO is used to supply power to V DDA_ANA , this pin must not be
used as a general-purpose output (driving high) since the max current capability
(see the I SD parameter in Section 4.3 , Electrical Characteristics Over Recommended
Ranges of Supply Voltage and Operating Temperature ) of the ANA_LDO can be
exceeded. Doing so may result in the on-chip power-on reset (POR) resetting the
chip.
GPAIN2: General -Purpose Output and Analog Input pin 2. This pin is connected to
ADC Channel 4. GPAIN2 can be used as a general-purpose output if certain
requirements are met (see the following note). GPAIN2 can accommodate input
voltages from 0 V to V DDA_ANA .
GPAIN2
B11
I/O
V DDA_ANA
Note: If the ANA_LDO is used to supply power to V DDA_ANA , this pin must not be
used as a general-purpose output (driving high) since the max current capability
(see the I SD parameter in Section 4.3 , Electrical Characteristics Over Recommended
Ranges of Supply Voltage and Operating Temperature ) of the ANA_LDO can be
exceeded. Doing so may result in the on-chip POR resetting the chip.
GPAIN3: General -Purpose Output and Analog Input pin 3. This pin is connected to
ADC Channel 5. GPAIN3 can be used as a general-purpose output if certain
requirements are met (see the following note). GPAIN3 can accommodate input
voltages from 0 V to V DDA_ANA .
GPAIN3
C11
I/O
V DDA_ANA
Note: If the ANA_LDO is used to supply power to V DDA_ANA , this pin must not be
used as a general-purpose output (driving high) since the max current capability
(see the I SD parameter in Section 4.3 , Electrical Characteristics Over Recommended
Ranges of Supply Voltage and Operating Temperature ) of the ANA_LDO can be
exceeded. Doing so may result in the on-chip POR resetting the chip.
(1)
(2)
(3)
(4)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal, BH = Bus Holder
Input pins of type I, I/O, and I/O/Z are required to be driven at all times. To achieve the lowest power, these pins must not be allowed to
float. When they are configured as input or high-impedance state, and not driven to a known state, they may cause an excessive IO-
supply current. Prevent this current by externally terminating it or enabling IPD/IPU, if applicable.
IPD = Internal pulldown, IPU = Internal pullup. For more detailed information on pullup/pulldown resistors and situations where external
pullup/pulldown resistors are required, see Section 3.8.1 , Pullup/Pulldown Resistors .
Specifies the operating I/O supply voltage for each signal
Copyright ? 2010–2013, Texas Instruments Incorporated
Product Folder Links: TMS320C5515
Device Overview
37
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