UPD78F9212CS-CAB-A Renesas Electronics America, UPD78F9212CS-CAB-A Datasheet - Page 81

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UPD78F9212CS-CAB-A

Manufacturer Part Number
UPD78F9212CS-CAB-A
Description
MCU 8BIT 4KB FLASH 16PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet

Specifications of UPD78F9212CS-CAB-A

Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
13
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
5.4
5.4.1
used as I/O port pins.
PORT FUNCTIONS.
5.4.2
pins.
used as crystal or ceramic resonator connection pins.
PORT FUNCTIONS.
The following three types of system clock oscillators are available.
The 78K0S/KY1+ 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 X1 and X2 pins can be
For details of the option byte, refer to CHAPTER 15 OPTION BYTE. For details of I/O ports, refer to CHAPTER 4
The crystal/ceramic oscillator oscillates using a crystal or ceramic resonator connected between the X1 and X2
If the crystal/ceramic oscillator is selected by the option byte as the system clock source, the X1 and X2 pins are
For details of the option byte, refer to CHAPTER 15 OPTION BYTE. For details of I/O ports, refer to CHAPTER 4
Figure 5-6 shows the external circuit of the crystal/ceramic oscillator.
Caution When using the crystal/ceramic oscillator, wire as follows in the area enclosed by the broken
High-speed internal oscillator:
Crystal/ceramic oscillator:
External clock input circuit:
System Clock Oscillators
High-speed internal oscillator
Crystal/ceramic oscillator
lines in Figure 5-6 to avoid an adverse effect from wiring capacitance.
• Keep the wiring length as short as possible.
• Do not cross the wiring with the other signal lines. Do not route the wiring near a signal line
• Always make the ground point of the oscillator capacitor the same potential as V
• Do not fetch signals from the oscillator.
through which a high fluctuating current flows.
ground the capacitor to a ground pattern through which a high current flows.
Figure 5-6. External Circuit of Crystal/Ceramic Oscillator
Internally oscillates a clock of 8 MHz (TYP.).
Oscillates a clock of 2 MHz to 10 MHz.
Supplies a clock of 2 MHz to 10 MHz to the X1 pin.
CHAPTER 5 CLOCK GENERATORS
User’s Manual U16994EJ6V0UD
Crystal resonator
or ceramic resonator
V
X1
X2
SS
SS
. Do not
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