ATAM862P-TNSY4D Atmel, ATAM862P-TNSY4D Datasheet - Page 29

• Manufacturer Part Number: ATAM862P-TNSY4D
• Description: IC MCU FLASH 4K TX 433MHZ 24SSOP
• Manufacturer: Atmel

Specifications of ATAM862P-TNSY4D

• Applications: UHF ASK/FSK
• Core Processor: MARC4
• Program Memory Type: FLASH (4 kB)
• Controller Series: MARC4 4-Bit
• Ram Size: 256 x 4
• Interface: SSI
• Number Of I /o: 11
• Voltage - Supply: 1.8 V ~ 4 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Processor Series: ATAM862x
• Core: MARC4
• Data Bus Width: 4 bit
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

19.2.3
19.2.4
4551G–4BMCU–07/07
RC-oscillator 2 with External Trimming Resistor
4-MHz Oscillator
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 with a tolerance of ±10% over the full operating
temperature and a voltage range V
For example:
An output frequency at the RC-oscillator 2 of 2 MHz can be obtained by connecting a resistor
R
Figure 19-4. RC-oscillator 2
The microcontroller block 4-MHz oscillator options need a crystal or ceramic resonator con-
nected to the OSC1 and OSC2 pins to establish oscillation. All the necessary oscillator circuitry
is integrated, except the actual crystal, resonator, C3 and C4.
Figure 19-5. 4-MHz Crystal Oscillator
Figure 19-6. Ceramic Resonator
ext
= 360 kΩ (see
Figure 19-4 on page
Configurable
C3
C4
Configurable
V
*
R
OSC1
OSC2
4 MHz
DD
XTAL
ext
OSC1
OSC2
*
OSC1
OSC2
Cer.
Res
DD
from 2.5V to 6.0V.
29).
C1
C2
*
*
R
Trim
oscillator 2
C1
*
*
C2
Oscin
Oscout
oscillator
RC
4-MHz
Oscout
Oscin
RcOut2
oscillator
Stop
4-MHz
4Out
Stop
4Out
Stop
DD
. In this configuration, the RC-oscil-
Osc-Stop
RcOut2
Osc-Stop
Osc-Stop
4Out
4Out
ATAM862-4
29