
LC87F5164A
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Main system clock oscillation circuit characteristics
The characteristics in the table bellow is based on the following conditions:
1. Use the standard evaluation board SANYO has provided.
2. Use the peripheral parts with indicated value externally.
3. The peripheral parts value is a recommended value of oscillator manufacturer.
Table 1. Main system clock oscillation circuit characteristics using ceramic resonator
Circuit Parameters
Frequency Manufacturer
Oscillator
Oscillation stabilizing time
C1
C2
Rd1
Operating
supply voltage
range
4.5 to 6.0V
4.5 to 6.0V
4.5 to 6.0V
4.5 to 6.0V
4.5 to 6.0V
4.5 to 6.0V
typ
max
Notes
CSA10.0MTZ 33pF 33pF 0
CST10.0MTW (30pF) (30pF) 0
KBR-10.0M 33pF 33pF 0
CSA4.00MG 33pF 33pF 0
CST4.00MGW (30pF) (30pF) 0
KBR-4.0MSA 33pF 33pF 0
0.05ms
0.05ms
0.05ms
0.05ms
0.05ms
0.05ms
0.50ms
0.50ms
0.50ms
0.50ms
0.50ms
0.50ms
Murata
Built in C1,C2
Built in C1,C2
10MHz
Kyocera
Murata
4MHz
Kyocera
*The oscillation stabilizing time is a period until the oscillation becomes stable after VDD becomes higher than minimum
operating voltage. (Refer to Figure4)
Subsystem clock oscillation circuit characteristics
The characteristics in the table bellow is based on the following conditions:
1. Use the standard evaluation board SANYO has provided.
2. Use the peripheral parts with indicated value externally.
3. The peripheral parts value is a recommended value of oscillator manufacturer.
Table 2. Subsystem clock oscillation circuit characteristics using crystal oscillator
Circuit Parameters
Frequency
Manufacturer
Oscillator
C3
C4
Rf
Rd2
Oscillation stabilizing time
Operating supply
voltage range
typ
max
Notes
32.768kHz Seiko EPSON
*The oscillation stabilizing time is a period until the oscillation becomes stable after executing the instruction which starts
the sub-clock oscillation or after releasing the HOLD mode. (Refer to Figure4)
C-002Rx 12pF 15pF OPEN 300k
4.5 to 6.0V
(Notes) Since the circuit pattern affects the oscillation frequency, place the oscillation-related parts as close to the
oscillation pins as possible with the shortest possible pattern length.
Figure 1 Ceramic oscillation circuit
Figure 2 Crystal oscillation circuit
Figure 3 AC timing measurement point
CF1
CF2
CF
C1
C2
XT1
XT2
Rf
C3
C4
X’tal
Rd2
Rd1
0.5VDD