ELANSC400-66AC AMD (ADVANCED MICRO DEVICES), ELANSC400-66AC Datasheet - Page 111

• 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

Notes:
1. LDEV is checked on the following rising edge of the CPU clock (not shown, up to 100 MHz) from the assertion of ADS. ADS
can assert a minimum of 20 ns after address change.
Symbol
t10
t12
t13
t14
t8
t11
t1
t2
t3
t4
t5
t6
t7
t9
1
Parameter Description
VL_LCLK period
VL_LCLK pulse High
VL_LCLK pulse Low
VL_ADS delay from VL_LCLK
SA25–SA2, VL_BE3–VL_BE0, VL_M/IO, VL_W/R, VL_D/C delay from
VL_LCLK
VL_BLAST valid from VL_LCLK
VL_LDEV valid from SA25–SA2, VL_BE3–VL_BE0, VL_M/IO, VL_W/R,
VL_D/C
VL_LDEV setup to VL_LCLK
VL_LRDY, VL_BRDY setup to VL_LCLK
VL_LRDY, VL_BRDY (VL-Bus target is driver) hold from VL_LCLK
VL_LRDY (VL-Bus target is driver) three stated from VL_LCLK
Read data setup to VL_LCLK
Read data hold from VL_CLK
Write data delay from VL_CLK
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet
Table 39. VESA Local Bus Cycles
External Bus
Min
27
14
14
15
12
3
3
3
5
0
3
0
33-MHz
Max
18
18
18
18
20
0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
111