ST72651AR6 STMicroelectronics, ST72651AR6 Datasheet - Page 148

• Manufacturer Part Number: ST72651AR6
• Description: LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI
• Manufacturer: STMicroelectronics

Specifications of ST72651AR6

• Dual Supply Management: analog voltage detector on the USB power line to enable smart power switching from USB power to battery (on E suffix devices).
• Programmable Internal Voltage Regulator For Memory Cards (2.8v To 3.5v) Supplying: Flash Card I/O lines (voltage shifting)
• 5 Usb Endpoints: 1 control endpoint
• Dtc (data Transfer Coprocessor): Universal Serial/Parallel communications interface, with software plug-ins for current and future protocol standards

ST72651AR6
13.12 8-BIT ADC CHARACTERISTICS
Subject to general operating conditions for V
Figure 93. Typical Application with ADC
Notes:
1. When V
2. 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.
3. The stabilization time of the AD converter is masked by the first t
always valid.
148/161
Symbol
C
t
R
f
V
t
STAB
ADC
ADC
ADC
AIN
AIN
DDA
ADC clock frequency
Conversion range voltage
External input resistor
Internal sample and hold capacitor
Stabilization time after ADC enabled
Conversion time (Sample+Hold)
- Sample capacitor loading time
- Hold conversion time
V
V
and V
AIN
DD
SSA
Parameter
0.1
pins are not available on the pinout, the ADC refer to V
R
AIN
μ
F
1)
AINx
V
V
DDA
SSA
f
CPU
Doc ID 7215 Rev 4
C
~2pF
DD
IO
=8MHz, f
, f
OSC
Conditions
V
, and T
DD
ADC
V
0.6V
V
0.6V
T
T
=2MHz
A
LOAD
unless otherwise specified.
. The first conversion after the enable is then
I
±1μA
L
V
Min
DD
SSA
and V
SS
Typ
0
.
6
6
4
8
ADC
3)
V
10
Max
DDA
4
2)
ST72XXX
1/f
Unit
MHz
kΩ
pF
μs
V
ADC