ST62T25CM3 STMicroelectronics, ST62T25CM3 Datasheet - Page 75
ST62T25CM3
Manufacturer Part Number
ST62T25CM3
Description
IC MCU 8BIT W/ADC 28-SOIC
Manufacturer
STMicroelectronics
Series
ST6r
Datasheet
1.ST62T25CB6.pdf
(100 pages)
Specifications of ST62T25CM3
Core Processor
ST6
Core Size
8-Bit
Speed
8MHz
Peripherals
LVD, POR, WDT
Number Of I /o
20
Program Memory Size
4KB (4K x 8)
Program Memory Type
OTP
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 6 V
Data Converters
A/D 16x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
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CLOCK AND TIMING CHARACTERISTICS (Cont’d)
11.5.4 RC Oscillator
The ST6 internal clock can be supplied with an external RC oscillator. Depending on the
accuracy of the frequency is about 20%, so it may not be suitable for some applications.
Notes:
1. Data based on characterization results, not tested in production. These measurements were done with the OSCin pin
2. R
Figure 51. Typical Application with RC Oscillator
f
R
Symbol
OSC
unconnected (only soldered on the PCB).
NET
NET
EXTERNAL RC
must have a positive temperature coefficient (ppm/°C), carbon resistors should therefore not be used.
R
RC oscillator frequency
RC Oscillator external resistor
NET
OSC
OSC
NC
IN
OUT
Parameter
1)
C
EX
~9pF DISCHARGE
2)
f
OSC
R
R
R
R
R
R
R
R
R
R
see
NET
NET
NET
NET
NET
NET
NET
NET
NET
NET
Conditions
Figure 52
=22 k
=47 k
=100 k
=220 k
=470 k
=22 k
=47 k
=100 k
=220 k
=470 k
&
V
V
Figure 53
DD
DD
ST6215CM-Auto ST6225CM-Auto
Min
7.2
5.1
3.2
1.8
0.9
3.7
2.8
1.8
0.5
22
1
V
DD
MIRROR
CURRENT
0.95
0.55
Typ
8.6
5.7
3.4
1.9
4.3
1.9
1.1
3
R
Max
ST62XX
NET
6.5
3.8
1.1
4.9
3.3
1.2
0.6
870
10
2
2
value, the
MHz
75/100
Unit
k
1
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