ST7FLITE35M6TR STMicroelectronics, ST7FLITE35M6TR Datasheet - Page 122
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ST7FLITE35M6TR
Manufacturer Part Number
ST7FLITE35M6TR
Description
IC MCU 8BIT 8K FLASH 20SOIC
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST7FLITE35F2M6TR.pdf
(173 pages)
Specifications of ST7FLITE35M6TR
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
LINSCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC (7.5mm Width)
Processor Series
ST7FLITE3x
Core
ST7
Data Bus Width
8 bit
Development Tools By Supplier
ST7FLITE-SK/RAIS, ST7MDT10-DVP3, ST7MDT10-EMU3, STX-RLINK
For Use With
497-5858 - EVAL BOARD PLAYBACK ST7FLITE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
- Current page: 122 of 173
- Download datasheet (3Mb)
ST7LITE3xF2
10-BIT A/D CONVERTER (ADC) (Cont’d)
11.6.3.2 Digital A/D Conversion Result
The conversion is monotonic, meaning that the re-
sult never decreases if the analog input does not
and never increases if the analog input does not.
If the input voltage (V
(high-level voltage reference) then the conversion
result is FFh in the ADCDRH register and 03h in
the ADCDRL register (without overflow indication).
If the input voltage (V
level voltage reference) then the conversion result
in the ADCDRH and ADCDRL registers is 00 00h.
The A/D converter is linear and the digital result of
the conversion is stored in the ADCDRH and AD-
CDRL registers. The accuracy of the conversion is
described in the Electrical Characteristics Section.
R
for an analog input signal. If the impedance is too
high, this will result in a loss of accuracy due to
leakage and sampling not being completed in the
alloted time.
11.6.3.3 A/D Conversion
The analog input ports must be configured as in-
put, no pull-up, no interrupt. Refer to the «I/O
ports» chapter. Using these pins as analog inputs
does not affect the ability of the port to be read as
a logic input.
In the ADCCSR register:
ADC Conversion mode
In the ADCCSR register:
Set the ADON bit to enable the A/D converter and
to start the conversion. From this time on, the ADC
performs a continuous conversion of the selected
channel.
When a conversion is complete:
A read to the ADCDRH or a write to any bit of the
ADCCSR register resets the EOC bit.
122/173
AIN
– Select the CS[2:0] bits to assign the analog
– The EOC bit is set by hardware.
– The result is in the ADCDR registers.
channel to convert.
is the maximum recommended impedance
AIN
AIN
) is lower than V
) is greater than V
SSA
(low-
DDA
To read the 10 bits, perform the following steps:
1. Poll EOC bit
2. Read ADCDRL
3. Read ADCDRH. This clears EOC automati-
To read only 8 bits, perform the following steps:
1. Poll EOC bit
2. Read ADCDRH. This clears EOC automati-
11.6.3.4 Changing the conversion channel
The application can change channels during con-
version.
When software modifies the CH[2:0] bits in the
ADCCSR register, the current conversion is
stopped, the EOC bit is cleared, and the A/D con-
verter starts converting the newly selected chan-
nel.
11.6.4 Low Power Modes
The A/D converter may be disabled by resetting
the ADON bit. This feature allows reduced power
consumption when no conversion is needed and
between single shot conversions.
11.6.5 Interrupts
None.
Mode
WAIT
HALT
cally.
cally.
Description
No effect on A/D Converter
A/D Converter disabled.
After wakeup from Halt mode, the A/D
Converter requires a stabilization time
t
before accurate conversions can be
performed.
STAB
(see Electrical Characteristics)
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