T48C862M-R4-TNQ Atmel, T48C862M-R4-TNQ Datasheet - Page 51

IC MON TIRE PRESS 433MHZ 24-SOIC

T48C862M-R4-TNQ

Manufacturer Part Number
T48C862M-R4-TNQ
Description
IC MON TIRE PRESS 433MHZ 24-SOIC
Manufacturer
Atmel
Datasheet

Specifications of T48C862M-R4-TNQ

Frequency
433MHz
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
-
Duty Cycle Generator
4551C–4BMCU–01/04
Table 17. Timer 2 Duty Cycle Bits
Table 18. Timer 2 Mode Select Bits
The duty cycle generator generates duty cycles of 25%, 33% or 50%. The frequency at
the duty cycle generator output depends on the duty cycle and the Timer 2 prescaler
setting. The DCG-stage can also be used as additional programmable prescaler for
Timer 2.
Figure 49. DCG Output Signals
Mode
T2MS1
T2MS0
T2D1
1
2
3
4
1
1
0
0
DCGO0
DCGO1
DCGO2
DCGO3
DCGIN
T2MS1
1
1
0
0
T2D0
T imer 2 M ode S elect bit 1
T imer 2 M ode S elect bit 0
1
0
1
0
T2MS0
Function of Duty Cycle Generator (DCG)
Bypassed (DCGO0)
Duty cycle 1/1 (DCGO1)
Duty cycle 1/2 (DCGO2)
Duty cycle 1/3 (DCGO3)
1
0
1
0
Clock Output (POUT)
4-bit counter overflow (OVF1)
4-bit compare output (CM1)
4-bit compare output (CM1)
4-bit compare output (CM1)
T48C862-R4 [Preliminary]
Timer 2 Modes
12-bit compare counter; the
DCG has to be bypassed in
this mode
8-bit compare counter with
4-bit programmable prescaler
and duty cycle generator
8-bit compare counter clocked
by SYSCL or the external clock
input T2I, 4-bit prescaler run,
the counter 2/1 starts after
writing mode 3
8-bit compare counter clocked
by SYSCL or the external clock
input T2I, 4-bit prescaler stop
and resets
Additional Divider Effect
/1
/2
/3
/4
51

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