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PDF ATA6602 Data sheet ( Hoja de datos )
| Número de pieza | ATA6602 | |
| Descripción | (ATA6602 / ATA6603) Microcontroller | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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General Features
• Single-package Fully-integrated AVR® 8-bit Microcontroller with LIN Transceiver,
5V Regulator and Watchdog
• Very Low Current Consumption in Sleep Mode
• 8 Kbytes/16 Kbytes Flash Memory for Application Program (ATA6602/ATA6603)
• Supply Voltage Up to 40V
• Operating Voltage: 5V to 18V
• Temperature Range: Tcase –40°C to +125°C
• QFN48, 7 mm × 7 mm Package
1. Description
ATA6602/ATA6603 is a single-package dual-chip circuit family for LIN-bus slave node
applications. It supports highly integrated solutions for in-vehicle LIN networks. The
LIN-system-basis-chip (LIN-SBC) consists of a LIN transceiver, voltage regulator and
window watchdog. The second chip is a microcontroller out of Atmel®'s series of AVR
8-bit microcontrollers with advanced RISC architecture.
Microcontroller
with LIN
Transceiver,
5V Regulator
and Watchdog
Figure 1-1. Application Diagram
ATA6602/
LIN Bus
ATA6603
ATA6602/ATA6603
MCU
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LIN-SBC
4921C–AUTO–01/07
1 page  
Figure 3-1. Block Diagram
ATA6602/ATA6603
RXD
WAKE
TXD
EN
GND
TEMP
GND
VDD
Receiver
VS
Normal
Mode
Filter
VS
LIN
VDD
TXD
Time-out
Timer
Debounce
Time
VDD
Wake-up Bus Timer
Slew Rate Control
Short Circuit and
Overtemperature
Protection
Control Unit
Standby Mode
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Normal Mode
5V ± 2%/50 mA
Silent Mode
5V ± 7%/50 mA
Undervoltage
Reset
VDD
PVDD
NRES
Internal Testing
Unit
MODE TM
OUT
Watchdog
VDD
PTRIG NTRIG
Adjustable
Watchdog
Oscillator
WD_OSC
4921C–AUTO–01/07
5
5 Page 
Figure 3-5. Switch to Sleep Mode
EN
ATA6602/ATA6603
Sleep Mode
TXD
NRES
Mode Select window
Td = 3.2 µs
VCC
3.3.13.4
3.3.13.5
3.3.13.6
Delay time Sleep Mode
Td_sleep = maximum 15 µs
LIN
LIN switches directly to recessive mode
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Pre Normal Mode
At system power-up the device automatically switches to Pre Normal Mode. The voltage regula-
tor is switched on VDD = 5V ±2%/50 mA (see Figure 3-7 on page 14). The NRES output switches
to low for tres = 10 ms and sends a reset to the microcontroller. LIN communication is switched
off and the watchdog is active. The LIN-SBC stays in this mode until EN is switched to high.
If VBattery (VS < 4V) is powered down during Silent Mode or Sleep Mode, the IC powers up into
Pre Normal Mode.
Unpowered Mode
If you connect battery voltage to the application circuit, the voltage at the VS pin increases due
to the block capacitor (see Figure 3-7 on page 14). When VS becomes higher than the VS under-
voltage threshold VS_th, the IC mode changes from Unpowered Mode to Pre Normal Mode. The
VDD output voltage reaches its nominal value after tVDD. This time depends on the VDD capacitor
and the load.
The NRES is low for the reset time delay treset. During this time, no mode change is possible.
Debug Mode
The watchdog is switched off with pin MODE high (5V) and in normal operation if it is tied to
GND.
4921C–AUTO–01/07
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ATA6602.PDF ] | |
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