参数资料
型号: UPD750066CU(A)-XXX
元件分类: 微控制器/微处理器
英文描述: 4-BIT, MROM, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-42
文件页数: 18/83页
文件大小: 730K
代理商: UPD750066CU(A)-XXX
25
PD750064, 750066, 750068, 750064(A), 750066(A), 750068(A)
Data Sheet U10165EJ2V1DS
6.3 Subsystem Clock Oscillator Control Function
The subsystem clock oscillator of the
PD750068 has the following two control functions to decrease the supply
current.
Selects by software whether an internal feedback resistor is to be used or notNote.
Reduces current consumption by decreasing the drive current of the on-chip inverter when the supply
voltage is high (VDD
≥ 2.7 V).
Note
When the subsystem clock is not used, set SOS.0 to 1 (so as not to use the internal feedback resistor)
by software, connect XT1 to VSS, and open XT2.
This makes it possible to reduce the current
consumption in the subsystem clock oscillator.
The above functions can be used by switching the bits 0 and 1 of the sub-oscillator control register (SOS). (Refer
to Figure 6-2.)
Figure 6-2. Subsystem Clock Oscillator
Feedback resistor
SOS.0
SOS.1
XT1
XT2
Inverter
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