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T48C862M-R3 Datasheet(PDF) 3 Page - ATMEL Corporation

Part No. T48C862M-R3
Description  Microcontroller with UHF ASK/FSK Transmitter
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T48C862M-R3 Datasheet(HTML) 3 Page - ATMEL Corporation

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T48C862-R3
4554A–4BMCU–02/03
21
CLK
Clock output signal for microcontroller
The clock output frequency is set by the
crystal to f
XTAL/4.
22
PA_ENABLE
Switches on power amplifier, used for
ASK modulation
23
24
ANT2
ANT1
Emitter of antenna output stage
Open collector antenna output
Pin Description: RF Part (Continued)
Pin
Symbol
Function
Configuration
CLK
VS
100
100
PA_ENABLE
50k
Uref=1.1V
20 mA
ANT1
ANT2
Pin Description: Microcontroller Part
Name
Type
Function
Alternate Function
Pin No.
Reset State
V
DD
Supply voltage
13
NA
V
SS
Circuit ground
12
NA
BP20
I/O
Bi-directional I/O line of Port 2.0
NTE-test mode enable, see also section "Master Reset"
7
Input
BP40
I/O
Bi-directional I/O line of Port 4.0
SC-serial clock or INT3 external interrupt input
14
Input
BP41
I/O
Bi-directional I/O line of Port 4.1
VMI voltage monitor input or T2I external clock input
Timer 2
9
Input
BP42
I/O
Bi-directional I/O line of Port 4.2
T2O Timer 2 output
10
Input
BP43
I/O
Bi-directional I/O line of Port 4.3
SD serial data I/O or INT3-external interrupt input
11
Input
BP50
I/O
Bi-directional I/O line of Port 5.0
INT6 external interrupt input
17
Input
BP52
I/O
Bi-directional I/O line of Port 5.2
INT1 external interrupt input
16
Input
BP53
I/O
Bi-directional I/O line of Port 5.3
INT1 external interrupt input
15
Input
BP60
I/O
Bi-directional I/O line of Port 6.0
T3O Timer 3 output
20
Input
BP63
I/O
Bi-directional I/O line of Port 6.3
T3I Timer 3 input
6
Input
OSC1
I
Oscillator input
4-MHz crystal input or 32-kHz crystal input or external
clock input or external trimming resistor input
18
Input
OSC2
O
Oscillator output
4-MHz crystal output or 32-kHz crystal output or external
clock input
19
Input
NRESET
I/O
Bi-directional reset pin
5
I/O


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