LC877296B View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LC877296B Datasheet PDF : 24 Pages
| |||
LC8772C8B/B2B/96B/80B
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
Frequency Manufacturer
Oscillator
Circuit parameters
Operating
Oscillation
supply voltage stabilizing time
C1 C2 Rd1
range
typ max
10MHz
Notes
4MHz
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
Frequency Manufacturer Oscillator
Circuit parameters
Operating
Oscillation
supply voltage stabilizing time
C3 C4 Rf Rd2
range
typ max
32.768kHz
Notes
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)
(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.
CF1
CF2
Rd1
CF
C1
C2
Figure 1 Ceramic oscillation circuit
XT1
C3
Rf
X’tal
XT2
Rd2
C4
Figure 2 Crystal oscillation circuit
No.6842-21/24
Share Link: 