STM32F217IGT6 Datasheet, PDF (122/173 Pages) STMicroelectronics – ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM

Electrical characteristics
STM32F21xxx
5.3.24
5.3.25
Embedded reference voltage
The parameters given in Table 68 are derived from tests performed under ambient
temperature and V_DD supply voltage conditions summarized in Table 11.
Table 68. Embedded internal reference voltage
Symbol
Parameter
Conditions
Min _Typ Max Unit
V_REFINT Internal reference voltage
ADC sampling time when
T_{S_vrefint(1)} reading the internal reference
voltage
–40 °C < T_A < +105 °C 1.18
10
1.21
-
V_{RERINT_s}
(2)
Internal reference voltage
spread over the temperature
range
V_DD = 3 V
-
3
T_Coeff(2) Temperature coefficient
t_START(2) Startup time
-
30
-
6
1. Shortest sampling time can be determined in the application by multiple iterations.
2. Guaranteed by design, not tested in production.
1.24
V
-
µs
5
mV
50 ppm/°C
10
µs
FSMC characteristics
Asynchronous waveforms and timings
Figure 53 through Figure 56 represent asynchronous waveforms and Table 69 through
Table 72 provide the corresponding timings. The results shown in these tables are obtained
with the following FSMC configuration:
● AddressSetupTime = 1
● AddressHoldTime = 1
● DataSetupTime = 1
● BusTurnAroundDuration = 0x0
In all timing tables, the T_HCLK is the HCLK clock period.
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