ST62T25CM6 STMicroelectronics, ST62T25CM6 Datasheet - Page 75

• Manufacturer Part Number: ST62T25CM6
• Description: IC MCU 8BIT OTP 4K 28 SOIC
• Manufacturer: STMicroelectronics
• Series: ST6r

Specifications of ST62T25CM6

• 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 ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: ST62T2x
• Core: ST6
• Data Bus Width: 8 bit
• Data Ram Size: 64 B
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 20
• Number Of Timers: 2
• Operating Supply Voltage: 3 V to 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST62GP-EMU2, ST62E2XC-EPB/110, ST62E6XC-EPB/US, ST622XC-KIT/110, STREALIZER-II
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details
• Other names: 497-2101-5

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