ATA6616-P3QW Atmel, ATA6616-P3QW Datasheet - Page 10

• Manufacturer Part Number: ATA6616-P3QW
• Description: TXRX MULTICHIP MOD LIN SIP 38QFN
• Manufacturer: Atmel
• Series: AVR® ATA66 LIN-SBCr

Specifications of ATA6616-P3QW

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, LIN, SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 38-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.4.2
10
Atmel ATA6616/ATA6617
Silent Mode
A falling edge at EN when TXD is high switches the IC into Silent Mode. The TXD Signal has
to be logic high during the Mode Select window (see
path is disabled in Silent Mode. The overall supply current from V
I
A 5V regulator with ±2% tolerance can source up to 50mA. The internal slave termination
between the LIN pin and the VS pin is disabled in Silent Mode. Only a weak pull-up current
(typically 10µA) between the LIN pin and the VS pin is present. Silent Mode can be activated
independently from the actual level on the LIN, WAKE, or KL_15 pins. If an undervoltage con-
dition occurs, NRES is switched to low, and the IC changes its state to Fail-safe Mode.
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.
Figure 3-3.
A falling edge at the LIN pin followed by a dominant bus level maintained for a certain time
period (t
remote wake-up request. The device switches from Silent Mode to Fail-safe Mode. The
remote wake-up request is indicated by a low level at the RXD pin to interrupt the microcon-
troller (see
VSsi
= 57µA plus the VCC regulator output current I
NRES
bus
VCC
TXD
LIN
EN
) and followed by rising edge at the LIN pin (see
Figure 3-4 on page
Normal Mode
Switch to Silent Mode
11). EN high can be used to switch directly to Normal Mode.
LIN switches directly to recessive mode
t
d
Delay time silent mode
_silent = maximum 20µs
t
d
= 3.2µs
Mode select window
VCC
Figure 3-3 on page
.
Figure 3-4 on page
Silent Mode
Batt
is a combination of the
10). The transmission
9132D–AUTO–12/10
11) results in a