ST72F321R6TC STMicroelectronics, ST72F321R6TC Datasheet - Page 167
![IC MCU 8BIT 32K FLASH 64-TQFP](/photos/6/76/67655/497-64-tqfp_sml.jpg)
ST72F321R6TC
Manufacturer Part Number
ST72F321R6TC
Description
IC MCU 8BIT 32K FLASH 64-TQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F321AR7T6.pdf
(193 pages)
Specifications of ST72F321R6TC
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
48
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72F321R6TC
Manufacturer:
STMicroelectronics
Quantity:
10 000
- Current page: 167 of 193
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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. 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 can be protected against negative injection by adding a Schottky diode (pin
to ground). Injecting negative current on digital input pins degrades ADC accuracy especially if performed on a pin close
to the analog input pins. Any positive injection current within the limits specified for I
does not affect the ADC accuracy.
Symbol
V
C
R
C
f
V
t
t
f
AREF
ADC
ADC
ADC
AIN
ADC
AIN
AIN
AIN
ADC clock frequency
Analog reference voltage
Conversion voltage range
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
=8MHz, SPEED=0 f
Parameter
ADC
1)
=2MHz
DD
0.7*V
, f
CPU
DD
Conditions
, and T
≤ V
AREF
A
ST72321Rx ST72321ARx ST72321Jx
unless otherwise specified.
≤ V
DD
V
Min
0.4
3.8
SSA
INJ(PIN)
and ΣI
Typ
7.5
12
11
4
INJ(PIN)
Figure 96
Figure 97
V
Max
and
V
see
AREF
2
DD
in
Section 12.8
167/193
1/f
Unit
MHz
kΩ
Hz
pF
pF
μs
V
ADC
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