UPD78F9502MA-CAC-A NEC, UPD78F9502MA-CAC-A Datasheet - Page 65
UPD78F9502MA-CAC-A
Manufacturer Part Number
UPD78F9502MA-CAC-A
Description
8BIT MCU, 4K FLASH, 128B RAM, SMD
Manufacturer
NEC
Datasheet
1.UPD78F9502MA-CAC-A.pdf
(229 pages)
Specifications of UPD78F9502MA-CAC-A
Controller Family/series
UPD78F
No. Of I/o's
8
Ram Memory Size
128Byte
Cpu Speed
10MHz
No. Of Timers
2
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
4KB
Oscillator Type
External, Internal
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5.4
5.4.1
as an I/O port pin.
PORT FUNCTIONS.
5.4.2
5.4.3
the peripheral hardware. It also divides the clock to peripheral hardware (f
CPU.
The following three types of system clock oscillators are available.
The PD78F9500, 78F9501, 78F9502 include a high-speed internal oscillator (8 MHz (TYP.)).
If the high-speed internal oscillation is selected by the option byte as the clock source, the EXCLK pin can be used
For details of the option byte, refer to CHAPTER 13 OPTION BYTE. For details of I/O ports, refer to CHAPTER 4
This circuit supplies a clock from an external IC to the EXCLK pin.
The prescaler divides the clock (f
Remark The clock output by the oscillator selected by the option byte (high-speed internal oscillator, or external
High-speed internal oscillator:
External clock input circuit:
System Clock Oscillators
High-speed internal oscillator
External clock input circuit
Prescaler
clock input circuit) is divided. For details of the option byte, refer to CHAPTER 13 OPTION BYTE.
X
) output by the system clock oscillator to generate a clock (f
Internally oscillates a clock of 8 MHz (TYP.).
Supplies a clock of 1 MHz to 10 MHz to the EXCLK pin.
CHAPTER 5 CLOCK GENERATORS
Preliminary User’s Manual U18681EJ1V0UD
XP
) to generate a clock to be supplied to the
XP
) to be supplied to
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