UPD78F9212CS-CAB-A Renesas Electronics America, UPD78F9212CS-CAB-A Datasheet - Page 174

• 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: -

(5) Full-scale error
(6) Integral linearity error
(7) Differential linearity error
(8) Conversion time
(9) Sampling time
172
This shows the difference between the actual measurement value of the analog input voltage and the theoretical
value (Full-scale
This shows the degree to which the conversion characteristics deviate from the ideal linear relationship. It
expresses the maximum value of the difference between the actual measurement value and the ideal straight line
when the zero-scale error and full-scale error are 0.
While the ideal width of code output is 1LSB, this indicates the difference between the actual measurement value
and the ideal value.
This expresses the time from the start of sampling to when the digital output is obtained.
The sampling time is included in the conversion time in the characteristics table.
This is the time the analog switch is turned on for the analog voltage to be sampled by the sample & hold circuit.
1 …… 1
0 …… 0
Figure 9-17. Integral Linearity Error
111
011
010
001
000
Figure 9-15. Zero-Scale Error
0
0
Ideal line
Ideal line
1
3/2LSB) when the digital output changes from 1......110 to 1......111.
Analog input (LSB)
2
Analog input
Zero-scale error
CHAPTER 9 A/D CONVERTER ( PD78F921x ONLY)
Integral linearity
error
3
Sampling
time
User’s Manual U16994EJ6V0UD
V
V
DD
DD
Conversion time
Figure 9-18. Differential Linearity Error
1 …… 1
0 …… 0
111
110
101
000
Figure 9-16. Full-Scale Error
0
0
Ideal 1LSB width
V
DD
Analog input (LSB)
3
Analog input
Full-scale error
V
DD
linearity error
Differential
2
V
Ideal line
DD
1
V
V
DD
DD