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PDF ATA6617 Data sheet ( Hoja de datos )
| Número de pieza | ATA6617 | |
| Descripción | (ATA6616 / ATA6617) Low Power AVR 8-bit Microcontroller | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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General Features
• Single-package High Performance, Low Power AVR 8-bit Microcontroller with LIN
Transceiver, 5V Regulator and Watchdog
• Very Low Current Consumption in Sleep Mode
• 8Kbytes/16Kbytes Flash Memory for Application Program (Atmel ATA6616/ATA6617)
• Supply Voltage Up to 40V
• Operating Voltage: 5V to 27V
• Temperature Range: Tcase –40°C to +125°C
• QFN38, 5mm × 7mm Package
1. Description
Atmel® ATA6616/ATA6617 is a System-in-Package (SiP) product, which is particu-
larly suited for complete LIN-bus node applications. It supports highly integrated
solutions for in-vehicle LIN networks. The first chip is the LIN-system-basis-chip
(LIN-SBC) ATA6624, which has an integrated LIN transceiver, a 5V regulator and a
window watchdog. The second chip is an automotive microcontroller from Atmel®’s
series of AVR® 8-bit microcontroller with advanced RISC architecture, the Atmel
ATtiny87 with 8-Kbytes and the Atmel ATtiny167 with 16-Kbytes flash memory.
All pins of the LIN System Basis Chip as well as all pins of the AVR microcontroller are
bonded out to provide customers the same flexibility for their applications as they
have when using discrete parts.
In section 2 you will find the pin configuration for the complete SiP. In section 3 the
LIN SBC is described, and in section 6 the AVR is described in detail.
Figure 1-1. Application Diagram
LIN Bus
Microcontroller
with LIN
Transceiver,
5V Regulator
and Watchdog
Atmel ATA6616
Atmel ATA6617
Atmel ATA6616/17
MCU
Atmel
ATtiny 87/167
LIN-SBC
Atmel
ATA6624
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9132D–AUTO–12/10
1 page  
Atmel ATA6616/ATA6617
Figure 3-1. Block Diagram
INH
RXD
PVCC
Normal and
Fail-safe
Mode
Receiver
-
+
WAKE
KL_15
PVCC
TXD
Edge
Detection
TXD
Time-out
Timer
Wake-up
Bus Timer
Slew Rate Control
Normal
Mode
RF Filter
Short Circuit and
Overtemperature
Protection
Control Unit
Normal/Silent/
Fail-safe Mode
3.3/5V
EN
Debounce
Time
Mode Select
/50 mA/±2%
Undervoltage
Reset
VS
LIN
VCC
PVCC
NRES
GND
Internal Testing
Unit
MODE TM
OUT
Watchdog
PVCC
NTRIG
Adjustable
Watchdog
Oscillator
WD_OSC
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9132D–AUTO–12/10
5
5 Page 
Atmel ATA6616/ATA6617
Figure 3-4.
LIN Wake-up from Silent Mode
Bus wake-up filtering time
tbus
LIN bus
Node in silent mode
RXD
High
Fail-safe mode
Low
Normal mode
High
TXD
Watchdog
Watchdog off
VCC
voltage
regulator
Silent mode 3.3V/5V/50mA
EN
Start watchdog lead time td
Fail safe mode 3.3V/5V/50mA Normal mode
EN High
NRES
Undervoltage detection active
3.4.3 Sleep Mode
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A falling edge at EN when TXD is low switches the IC into Sleep Mode. The TXD Signal has to
be logic low during the Mode Select window (Figure 3-5 on page 12). In order to avoid any
influence to the LIN-pin during switching into sleep mode it is possible to switch the EN up to
3.2µs earlier to LOW than the TXD. Therefore, the best and easiest way are two falling edges
at TXD and EN at the same time.The transmission path is disabled in Sleep Mode. The supply
current IVSsleep from VBatt is typically 10µA.
The VCC regulator is switched off. NRES and RXD are low. The internal slave termination
between the LIN pin and VS pin is disabled, only a weak pull-up current (typically 10µA)
between the LIN pin and the VS pin is present. Sleep Mode can be activated independently
from the current level on the LIN, WAKE, or KL_15 pin.
A voltage less than the LIN Pre_Wake detection VLINL at the LIN pin activates the internal LIN
receiver and switches on the internal slave termination between the LIN pin and the VS pin.
9132D–AUTO–12/10
11
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ATA6617.PDF ] | |
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