ELANSC400-66AC AMD (ADVANCED MICRO DEVICES), ELANSC400-66AC Datasheet - Page 77

• Manufacturer Part Number: ELANSC400-66AC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ELANSC400-66AC

• Cpu Family: Elan
• Device Core Size: 16/32Bit
• Frequency (max): 66MHz
• Interface Type: ISA
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Instruction Set Architecture: CISC
• Operating Temp Range: 0C to 95C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 292
• Package Type: BGA
• Lead Free Status / Rohs Status: Not Compliant

Integrated Peripheral Clock Sources
Table 26 and Figure 5 show the primary peripheral
clocks internal to the microcontroller and the PLL and
divider sources that are used in the generation of these
clocks. Note that several of the peripheral clocks are
programmable. This programmability is either directly
Source PLL
Intermediate PLL
1.4746 MHz
Low-speed PLL
36.864 MHz
Graphics dot clock PLL
36.864 MHz
High-speed PLL
66.3552 MHz
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet
Table 26. Integrated Peripheral Clock Sources
Programmable
Divider
20
31
16
32
64
1
1
2
1
1
2
4
8
Resulting Frequency
20.736–36.864 MHz
18.4328 MHz
66.3552 MHz
33.1776 MHz
16.5888 MHz
1.4746 MHz
36.864 MHz
1.8432 MHz
1.1892 MHz
36.864 MHz
8.2944 MHz
4.1472 MHz
2.0736 MHz
1.0368 MHz
controlled by system firmware or is forced due to a
power-management mode change. The graphics con-
troller and the PC Card controller are not supported on
the ÉlanSC410 microcontroller.
Where Used
Low-speed PLL input
High-speed PLL input
Graphics dot clock PLL input
UART
UART
PIT
Graphics controller dot clock
Graphics controller
DRAM controller
Graphics controller
CPU
VL-bus controller
CPU
VL-bus controller
DMA controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
CPU
VL-bus controller
ISA bus controller
ROM/Flash memory interface
DMA controller
PC Card controller
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