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MC33888A View Datasheet(PDF) - Motorola => Freescale

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MC33888A Datasheet PDF : 32 Pages
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Freescale Semiconductor, Inc.
TERMINAL DEFINITIONS FOR PQFP (continued)
Functional descriptions of many of these terminals can be found in the System/Application Information section beginning on
page 19.
Terminal
Terminal
Name
Formal Name
Definition
36 – 42
HS1
43 – 49
HS0
High-Side Output 1
High-Side Output 0
Each terminal is the source of a 10 mMOSFET high-side driver, which delivers
current through the connected loads. These outputs can be controlled via SPI or
using the IHS terminals depending on the internal configuration. These outputs are
current limited and thermally protected. During fail-safe mode, output HS0 will be
turned on until the device is reinitialized and then immediately followed by normal
operation.
63
WAKE
Wake
This terminal is used to input a logic [1] signal in order to enable the watchdog timer
function. An internal clamp protects the terminal from high voltages when current is
limited with an external resistor. This input has a passive internal pulldown.
64
RST
Reset (Active Low)
This input terminal is used to initialize the device configuration and fault registers,
as well as place the device in a low current standby mode. This terminal also starts
the watchdog timeout when transitioned from logic [0] to logic [1]. This terminal
should not be allowed to be at logic [1] until VDD is in regulation. This input has an
internal passive pulldown.
33888
8
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
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