參數(shù)資料
型號(hào)： ELANSC300-25VC
廠商： ADVANCED MICRO DEVICES INC
元件分類(lèi)： 微控制器/微處理器
英文描述： Highly Integrated, Low-Power, 32-Bit Microcontroller
中文描述： 32-BIT, 25 MHz, MICROCONTROLLER, PQFP208
封裝： TQFP-208
文件頁(yè)數(shù)： 45/139頁(yè)
文件大小： 1388K
代理商： ELANSC300-25VC
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élanSC300 Microcontroller Data Sheet
45
P R E L I M I N A R Y
AVCC is required for battery backup. For more informa-
tion about battery backup, see the
élan
TM
SC300 and
élan
TM
SC310 Microcontrollers Solution For Systems
Using a Back-Up Battery Application Note
, order
#20746.
GND
System Ground Pins
These pins provide electric grounding to all non-analog
sections
of the élanSC300 microcontroller’s internal
CPU and peripherals.
IORESET
Reset Input (Input; Active Low)
IORESET is an asynchronous hardware reset input
equivalent to POWERGOOD in the PC/AT system ar-
chitecture. Asserting this signal does not reset the RTC
RAM invalid bit.
Asserting IORESET without asserting RESIN causes
the élanSC300 microcontroller to go into Micro Power
Off mode. For more information, see “Micro Power Off
Mode” on page 55.
RESIN
Master Reset (Input; Active Low)
RESIN indicates that main power is being applied to
the élanSC300 microcontroller for the first time. When
this signal is asserted, the RTC and internal registers
are reset.
The RESIN signal supersedes the
IORESET
signal.
VCC
3.3 V (only) DC Supply Pins
These supply pins provide power to the élanSC300 mi-
crocontroller core. Refer to AC Characteristics for VCC
power up timing restrictions.
The VCC pins are required for battery backup. For
more information about battery backup, see the
élan
TM
SC300 and élan
TM
SC310 Microcontrollers Solu-
tion For Systems Using a Back-Up Battery Application
Note
, order #20746.
VCC1
3.3 V or 5 V Supply Pin
This supply pin provides power to a subset of the LCD/
alternate, power management, and ISA interface pins.
VCC5
5 V DC Supply Pins
These supply pins provide power to the 5 V only inter-
face pins. These pins could be 3.3 V in a pure 3.3-V
system.
VMEM
3.3-V or 5-V Supply Pins
These supply pins provide power to the Memory Inter-
face and Data Bus pins (D15–D0). These pins must be
connected to the same DC supply as the system
DRAMs.
VSYS
3.3 V or 5 V Supply Pins
These supply pins provide power to a subset of the ISA
address and command signal pins, in addition to exter-
nal memory chip selects, buffer direction controls, and
other miscellaneous functions.
VSYS2
3.3 V or 5 V Supply Pins
These supply pins provide power to some of the
élanSC300 microcontroller alternate system interface
pins.
FUNCTIONAL DESCRIPTION
The élanSC300 microcontroller architecture consists
of several components, as shown in the device block
diagram. These components can be grouped into eight
main functional modules:
1. The Am386SXLV microprocessor core itself, includ-
ing System Management Mode (SMM) power man-
agement hardware
2. A memory controller and associated mapping hard-
ware
3. Two PCMCIA Revision 2.1 slots
4. An additional power management controller that in-
terfaces to the CPU’s System Management Mode
(SMM) and is integrated tightly with internal clock
generator hardware
5. Core peripheral controllers (DMA, interrupt control-
ler, and timer)
6. Additional peripheral controllers (UART, parallel
port, and real-time clock)
7. PC/AT support features
8. An integrated LCD controller, optional local bus
controller, or optional maximum ISA bus
The remainder of this section describes these mod-
ules.
Am386SXLV CPU Core
The CPU core component is a full implementation of
the AMD Am386SXLV 32-bit, low-voltage microproces-
sor (with I/O pads removed). For more information
about the Am386 microprocessors, see the
相關(guān)PDF資料
PDF描述
ELANSC300-25VI Highly Integrated, Low-Power, 32-Bit Microcontroller
ELANSC300-33VI Highly Integrated, Low-Power, 32-Bit Microcontroller
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ELANSC300-25VI 制造商:AMD 制造商全稱(chēng):Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller
ELANSC300-33KC 制造商:AMD 制造商全稱(chēng):Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller
ELANSC300-33KI 制造商:AMD 制造商全稱(chēng):Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller
ELANSC300-33VC 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Advanced Micro Devices 功能描述: 制造商:AMD 功能描述:
ELANSC300-33VI 制造商:AMD 制造商全稱(chēng):Advanced Micro Devices 功能描述:Highly Integrated, Low-Power, 32-Bit Microcontroller
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