ELANSC400-66AI AMD (ADVANCED MICRO DEVICES), ELANSC400-66AI Datasheet - Page 95

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

Specifications of ELANSC400-66AI

• 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: -40C to 95C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 292
• Package Type: BGA
• Lead Free Status / Rohs Status: Not Compliant

Notes:
The ROM controller fetches the number of bytes requested by the CPU as dictated by the CPU BE (Byte Enable) signals and
returns the data as a single transfer. In this example, BE was set to “0001”. Therefore, the ROM controller generates additional
addresses to read all three bytes before returning them to the CPU.
SA25–SA4
ROMCSx
SD7–SD0
SA3–SA0
ROMWR
ROMRD
SA25–SA0
ROMCSx
ROMWR
ROMRD
SD15–SD0
D15–D0
(x32 ROM)
DBUFOE
DBUFRDL
DBUFRDH
R32BFOE
Figure 26. Fast Mode CPU Read of Three Consecutive Bytes from 8-Bit ROM/Flash Memory
Figure 27. Fast Mode 8-/16-/32-Bit Flash Memory Write Cycles
t1
t2a
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet
t2a
t2b
t2b
t27
0
t8
t5
t12
t4
t6
t11
t11
3 * t9
3 * t9
t10
t10
1
2
t26
t29
t14
t13
t1
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