UPD78F9212CS-CAB-A Renesas Electronics America, UPD78F9212CS-CAB-A Datasheet - Page 164

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

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: -

162
Address: FF80H
Symbol
ADM
Remarks 1. f
Notes 1. Even when the ADCE = 0 (comparator operation stopped), the A/D conversion operation starts if
FR2
ADCS
ADCS
ADCE
0
1
1
1
0
0
1
0
1
0
<7>
Note 1
Note 1
0
1
2. Be sure to set the FR2, FR1, and FR0, in accordance with the reference voltage so that Notes 3
After reset: 00H
2. The conversion time refers to the total of the sampling time and the time from successively
the ADCS is set to 1. However, the data of the first conversion is out of the guaranteed-value
range, so ignore it.
and 4 below are satisfied.
Example
FR1
comparing with the sampling value until the conversion result is output.
0
0
1
0
1
0
1
1
Stops conversion operation
Starts conversion operation
Stops operation of comparator
Enables operation of comparator
XP
: Oscillation frequency of clock to peripheral hardware
Figure 9-3. Format of A/D Converter Mode Register (ADM)
6
0
FR0
When V
0
0
0
1
0
1
1
1
CHAPTER 9 A/D CONVERTER ( PD78F921x ONLY)
The sampling time is 11.0 s or more and the A/D conversion time is 14.0 s or
more and 100 s or less.
Set FR2, FR1, and FR0 = 0, 1, 1 or 1, 1, 1.
R/W
Reference
V
4.5 V
V
4.0 V
V
2.85 V
V
2.7 V
DD
Range
Voltage
DD
DD
DD
DD
FR2
5
2.7 V, f
Note 2
User’s Manual U16994EJ6V0UD
12/f
24/f
96/f
48/f
48/f
24/f
176/f
88/f
Sampling
XP
Time
= 8 MHz
XP
XP
XP
XP
XP
XP
XP
FR1
XP
A/D conversion operation control
Comparator operation control
4
Note 3
Conversion
36/f
72/f
144/f
96/f
72/f
48/f
224/f
112/f
Time
XP
XP
XP
XP
XP
XP
XP
XP
Note 4
FR0
3
1.5 s
3.0 s
12.0 s
6.0 s
6.0 s
3.0 s
22.0 s
11.0 s
Sampling
Time
f
Note 3
XP
= 8 MHz
Note 6
2
0
Conversion
4.5 s
9.0 s
18.0 s
12.0 s
9.0 s
6.0 s
28.0 s
14.0 s
Time
Note 4
1.2 s
2.4 s
9.6 s
4.8 s
4.8 s
Setting
prohibited
Note 5
(2.4 s)
17.6 s
Setting
prohibited
Note 5
(8.8 s)
Sampling
1
0
Time
f
XP
Note 3
= 10 MHz
Conversion
3.6 s
7.2 s
14.4 s
9.6 s
7.2 s
Setting
prohibited
Note 5
(4.8 s)
22.4 s
Setting
prohibited
Note 5
(11.2 s)
ADCE
Time
<0>
Note 4