参数资料
型号: ST6200CN6/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO16
封装: ROHS COMPLIANT, PLASTIC, SSOP-16
文件页数: 69/100页
文件大小: 3849K
代理商: ST6200CN6/XXX
ST6200C ST6201C ST6203C
70/100
Doc ID 4563 Rev 5
CLOCK AND TIMING CHARACTERISTICS (Cont’d)
10.5.4 RC Oscillator
The ST6 internal clock can be supplied with an external RC oscillator. Depending on the RNET value, 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
unconnected (only soldered on the PCB).
2. RNET must have a positive temperature coefficient (ppm/°C), carbon resistors should therefore not be used.
Figure 45. Typical Application with RC Oscillator
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fOSC
RC oscillator frequency 1)
4.
5V
≤V
DD
≤6.
0V
RNET=22 kΩ
RNET=47 kΩ
RNET=100 kΩ
RNET=220 kΩ
RNET=470 kΩ
7.2
5.1
3.2
1.8
0.9
8.6
5.7
3.4
1.9
0.95
10
6.5
3.8
2
1.1
MHz
3V
≤V
DD
≤3.
6V
RNET=22 kΩ
RNET=47 kΩ
RNET=100 kΩ
RNET=220 kΩ
RNET=470 kΩ
3.7
2.8
1.8
1
0.5
4.3
3
1.9
1.1
0.55
4.9
3.3
2
1.2
0.6
RNET
RC Oscillator external resistor 2)
22
870
k
Ω
OSCIN
OSCOUT
RNET
EXTERNAL RC
CEX~9pF DISCHARGE
ST62XX
VDD
fOSC
VDD
NC
MIRROR
CURRENT
1
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