T48C862M-R3-TNS Atmel, T48C862M-R3-TNS Datasheet - Page 86

IC MON TIRE PRESS 315MHZ 24SOIC

T48C862M-R3-TNS

Manufacturer Part Number
T48C862M-R3-TNS
Description
IC MON TIRE PRESS 315MHZ 24SOIC
Manufacturer
Atmel
Datasheet

Specifications of T48C862M-R3-TNS

Frequency
315MHz
Modulation Or Protocol
FM, FSK
Data Rate - Maximum
32 kBaud
Power - Output
10dBm
Current - Transmitting
9.5mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Memory Size
1KB EEPROM, 1KB RAM
Voltage - Supply
2 V ~ 4 V
Operating Temperature
-40°C ~ 125°C
Package / Case
24-SOIC (0.200", 5.30mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
-
Applications
-
Combination Mode 10:
Frequency Measurement or
Event Counter with Time Gate
Combination Mode 11:
Burst Modulation 1
86
T48C862-R3
Counter 3
Timer 2 mode 1/2:
Timer 2 output mode 1/6: Timer 2 compare match toggles (TOG2) to the Timer 3
Timer 3 mode 3:
(with Timer 2
The counter is driven by an external (T3I) clock source. The output signal (TOG2) of
Timer 2 resets the counter. The counter value before reset is saved in the capture regis-
ter. If single-action mode is activated for one or both compare registers, the trigger
signal restarts also the single actions. This mode can be used for frequency measure-
ments or as event counter with time gate.
Figure 85. Frequency Measurement
Figure 86. Event Counter with Time Gate
Timer 2 mode 1/2:
Timer 2 output mode 1/6: Timer 2 compare match toggles the output flip-flop (M2)
Timer 3 mode 6:
The Timer 3 counter is driven by an internal or external clock source. Its compare and
compare mode registers must be programmed to generate the carrier frequency with
the output toggle flip-flop. The output toggle flip-flop (M2) of Timer 2 is used to enable
and disable the Timer 3 output. The Timer 2 can be driven by the toggle output signal of
Timer 3 (TOG3) or any other clock source.
Register
T3CP-
TOG2
Counter 3
T3R
T3I
Register
T3CP-
TOG2
T3R
T3I
0 0 1 2 3 4 5 6 7 8 9 10
0 0 1 2 3 4 5 6 7 8 9 10
Capture value = 0
Capture value = 0
12-bit compare counter/8-bit compare counter and
4-bit prescaler
Timer/Counter; internal trigger restart and internal capture
TOG2-signal)
12-bit compare counter/8-bit compare counter and
4-bit prescaler
to the Timer 3
Carrier frequency burst modulation controlled by Timer 2
output (M2)
11121314151617
11
0
1 2 3 4 5 6 7 8 9 101112131415161718
0 1
Capture value = 17
2
Capture value = 11
3
Capt. value = 18
4554A–4BMCU–02/03
0 1 2 3 4 5
4
Cap. val. = 4
0 1
2

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