ATA6020N ATMEL Corporation, ATA6020N Datasheet - Page 17

• Manufacturer Part Number: ATA6020N
• Description: Low-current Microcontroller For Watchdog Function
• Manufacturer: ATMEL Corporation

4.4.2.3
4708D–4BMCU–09/05
RC-oscillator 2 with External Trimming Resistor
Figure 4-14. External Input Clock
Table 4-5.
The RC-oscillator 2 is a high resolution trimmable oscillator whereby the oscillator frequency can
be trimmed with an external resistor between OSC1 and V
lator 2 frequency can be maintained stable to within a tolerance of ±10% over the full operating
temperature and voltage range from V
For example: An output frequency at the RC-oscillator 2 of 1.6 MHz, can be obtained by con-
necting a resistor R
Figure 4-15. RC-oscillator 2
OS1
1
1
x
Supervisor Function Control Bits
ext
= 47 k (see
R
Clock
ext
Ext.
OS0
1
1
0
OSC1
OSC1
Figure
DD
= 3.5V to 5.5V.
Ext. input clock
ExIn
R
4-15).
RC-oscillator 2
Clock monitor
CCS
Trim
0
1
x
RcOut2
ExOut
Stop
Stop
Supervisor Reset Output (Res)
Enable
Disable
Disable
DD
. In this configuration, the RC-oscil-
Osc-Stop
Osc-Stop
RcOut2
RcOut1
CCS
Res
ATA6020N
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