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AS3658F-BCTP датащи(PDF) 31 Page - ams AG

номер детали AS3658F-BCTP
подробное описание детали  Power and Audio Management Unit for Portable Devices
PDF  158 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS3658F-BCTP датащи(HTML) 31 Page - ams AG

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www.austriamicrosystems.com
Revision 1v13
30 - 157
AS3658
Data Sheet Confidential - Detail ed Descri ption-Power Management Functions
8.3
General Purpose Input / Output (CURR1_GPIO1 … CURR4_GPIO4)
Figure 9. CURR1_GPIO1 … CURR4_GPIO4 block diagram
The device contains 4 high current GPIO pins, which share the same pins as the low voltage current sinks and are
capable of sinking 100mA from VCURR_GPIO voltage. Each of the pins can be configured as open drain NMOS or
push-pull output with VCURR_GPIO high levels, as high impedance output or as digital input. When configured as
output the output source can be a register bit, or the PWM generator, furthermore the output signal can be inverted.
Integrated active clamp circuits can be enabled for the open drain NMOS output mode by setting GPIOxPulls=11b,
thus allowing to use the high current GPIO pins for driving inductive loads. A pull-up resistor to VCURR_GPIO can be
enabled for the open drain NMOS output mode by setting GPIOxPulls=10b. When configured as digital input the logic
level (GPIOxInvert=’0’) or the inverted logic level (GPIOxInvert=’1’) of the pin is reflected by bit GPIOxBit in the GPIO
Bit register.




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