ST72F325K4T6 STMicroelectronics, ST72F325K4T6 Datasheet - Page 173

• Manufacturer Part Number: ST72F325K4T6
• Description: MCU 8BIT 16KB FLASH/ROM 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F325K4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7232X-EVAL, ST7232X-SK/RAIS, ST72325-D/RAIS, ST7MDT20-DVP3, ST7MDT20J-EMU3, ST7MDT20M-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-5605

10-BIT ADC CHARACTERISTICS (Cont’d)
12.12.3 ADC Accuracy
Conditions: V
Notes:
1. ADC Accuracy vs. Negative Injection Current: Injecting negative current may reduce the accuracy of the conversion
being performed on another analog input.
Any positive injection current within the limits specified for I
accuracy.
2. Data based on characterization results, monitored in production to guarantee 99.73% within ± max value from -40°C
to 125°C (± 3σ distribution limits).
Figure 98. ADC Accuracy Characteristics
Symbol
1023
1022
1021
|E
|E
|E
|E
|E
7
6
5
4
3
2
1
O
G
D
T
L
0
V
|
|
|
|
|
SSA
Digital Result ADCDR
1LSB
Total unadjusted error
Offset error
Gain Error
Differential linearity error
Integral linearity error
1
E
O
IDEAL
DD
2
=5V
1)
3
Parameter
=
1)
1)
V
--------------------------------------------
AREF
4
1024
5
–
1 LSB
1)
V
1)
SSA
E
1)
6
T
IDEAL
E
7
L
(2)
CPU in run mode @ f
CPU in run mode @ f
E
D
1021 1022 1023 1024
(3)
INJ(PIN)
(1)
Conditions
E
G
V
AREF
and ΣI
ADC
ADC
2 MHz.
2 MHz.
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) End point correlation line
E
between the actual and the ideal transfer curves.
E
transition and the first ideal one.
E
transition and the last actual one.
E
between actual steps and the ideal one.
E
between any actual transition and the end point
correlation line.
INJ(PIN)
T
O
G
D
L
=Total Unadjusted Error: maximum deviation
=Integral Linearity Error: maximum deviation
=Differential Linearity Error: maximum deviation
=Offset Error: deviation between the first actual
=Gain Error: deviation between the last ideal
V
in
(LSB
in
Section 12.8
IDEAL
Typ
)
0.5
3
2
1
1
does not affect the ADC
Max
4
3
3
2
2
2)
ST72325xx
Unit
LSB
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