HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 776
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HD6432160
Manufacturer Part Number
HD6432160
Description
Hitachi 16-Bit Single-Chip Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6432160.pdf
(829 pages)
- Current page: 776 of 829
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28.3
28.3.1
The clock timings are shown below.
Rev. 2.0, 08/02, page 736 of 788
External capacitor for
power supply regulation
0.47 µF
(one,
or two
in parallel)
The VCC power supply should not be connected to the
VCL pin of the product with the internal step-down
function. (Connect the VCC power supply to other
VCC1 pins as usual.)
Be sure to connect power supply regulating capacitor(s)
to the VCL pin. One or two (parallel) 0.47-µF
multilayer capacitors should be used near the VCL pin.
For 3-V products used with the voltage of 3.6 V or less,
connect the Vcc power supply in the same way as the
products without the internal step-down function.
< Product with internal step-down function >
HD64F2148B
Timing Chart
Clock Timing
VCL
VSS
Product with internal
step-down function
ø
Figure 28.5 Connection of VCL Capacitor
Figure 28.6 System Clock Timing
t
CH
Bypass
capacitor
Vcc power supply
t
10 µF
cyc
t
Cf
t
CL
The VCC2 pin of the product without the internal step-down
function is allocated at the same location as the VCL pin of
the product with the internal step-down function.
It is recommended that a bypass capacitor be connected to
the power supply pins. (The values are reference values.)
< Product without internal step-down function >
HD64F2145BV
HD64F2148BV
0.01 µF
t
Cr
VCL
VSS
Product without
internal step-down function
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