ATAM862P-TNQY4D Atmel, ATAM862P-TNQY4D Datasheet - Page 28
ATAM862P-TNQY4D
Manufacturer Part Number
ATAM862P-TNQY4D
Description
IC MCU FLASH 4K TX 433MHZ 24SSOP
Manufacturer
Atmel
Datasheet
1.ATAM862P-TNQY4D.pdf
(110 pages)
Specifications of ATAM862P-TNQY4D
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
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19.2.2
28
ATAM862-4
External Input Clock
ter frequency tolerance is better than ±50% over the full temperature and voltage range. The
basic center frequency of the RC-oscillator 1 is f
default after power-on reset.
Figure 19-2. RC-oscillator 1
The OSC1 or OSC2 (mask option) can be driven by an external clock source provided it meets
the specified duty cycle, rise and fall times and input levels. Additionally, the external clock stage
contains a supervisory circuit for the input clock. The supervisor function is controlled via the
OS1, OS0 bit in the SC register and the CCS bit in the CM register. If the external input clock is
missing for more than 1 ms and CCS = 0 is set in the CM register, the supervisory circuit gener-
ates a hardware reset.
Figure 19-3. External Input Clock
Table 19-2.
OS1
1
1
x
Supervisor Function Control Bits
Clock
OS0
Clock
Ext.
Ext.
1
1
0
or
OSC1
OSC2
oscillator 1
Control
RC
Ext. input clock
ExIn
CCS
Clock monitor
RcOut1
0
1
x
Stop
O
≈ 3.8 MHz. The RC oscillator 1 is selected by
ExOut
Stop
Osc-Stop
RcOut1
Supervisor Reset Output (Res)
Osc-Stop
RcOut1
CCS
Res
Disable
Disable
Enable
4551G–4BMCU–07/07
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