ST72F521M9T6 STMicroelectronics, ST72F521M9T6 Datasheet - Page 193

• Manufacturer Part Number: ST72F521M9T6
• Description: IC MCU 8BIT 60K FLASH 80-TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F521M9T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, LINSCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 64
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K 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: 80-TQFP, 80-VQFP
• Processor Series: ST72F5x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 2048 B
• Interface Type: CAN, I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 64
• Number Of Timers: 5
• Operating Supply Voltage: 3.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• For Use With: 497-6453 - BOARD EVAL BASED ON ST7LNBX497-5046 - 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: 497-8244; ST72F521M9T6

12.12 10-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
Notes:
1. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10kΩ). Data
based on characterization results, not tested in production.
2. For Flash devices: injecting negative current on any of the analog input pins significantly reduces the accuracy of any
conversion being performed on any analog input. Analog pins of flash devices can be protected against negative injection
by adding a Schottky diode (pin to ground). Injecting negative current on digital input pins degrades ADC accuracy espe-
cially if performed on a pin close to the analog input pins. Any positive injection current within the limits specified for
I
Symbol
INJ(PIN)
V
C
R
C
f
V
t
t
f
AREF
ADC
ADC
ADC
I
I
AIN
ADC
lkg
lkg
AIN
AIN
AIN
and ΣI
ADC clock frequency
Analog reference voltage
Conversion voltage range
Positive input leakage current for analog
input
Negative input leakage current on ro-
bust analog pins (ROM devices only)
Positive input leakage current for analog
input
Negative input leakage current on ro-
bust analog pins (ROM devices only)
External input impedance
External capacitor on analog input
Variation freq. of analog input signal
Internal sample and hold capacitor
Conversion time (Sample+Hold)
f
- No of sample capacitor loading cycles
- No. of Hold conversion cycles
CPU
INJ(PIN)
=8MHz, SPEED=0 f
in
Section 12.8
Parameter
ADC
does not affect the ADC accuracy.
1)
=2MHz
2
2
DD
0.7*V
-40°C≤T
Other T
V
on adjacent robust ana-
log pin
-40°C≤T
Other T
V
on adjacent robust ana-
log pin
, f
IN
IN
CPU
<
<
V
V
DD
Conditions
SS,
SS,
, and T
A
A
A
A
≤V
ranges
ranges
≤85°C range
| I
≤85°C range
| I
AREF
IN
IN
|< 400µA
|< 400µA
A
≤V
unless otherwise specified.
DD
V
Min
0.4
3.8
SSA
ST72F521, ST72521B
Typ
12
7.5
5
5
11
4
111
110
Figure
Figure
V
±250
±250
Max
see
V
AREF
±1
±1
2
6
6
2)3)4)
DD
and
193/215
1/f
Unit
MHz
nA
µA
µA
nA
µA
µA
kΩ
pF
Hz
pF
µs
V
ADC