ATA6621-PGQW Atmel, ATA6621-PGQW Datasheet - Page 3

• Manufacturer Part Number: ATA6621-PGQW
• Description: IC TXRX LIN BUS 5V/50MA 20QFN
• Manufacturer: Atmel
• Type: Transceiverr

Specifications of ATA6621-PGQW

• Number Of Drivers/receivers: 1/1
• Protocol: LIN
• Voltage - Supply: 5 V ~ 18 V
• Mounting Type: Surface Mount
• Package / Case: 20-QFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2. Pin Configuration
Figure 2-1.
Table 2-1.
4887I–AUTO–09/09
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Pinning QFN20
Pin Description
WD_OSC
Backside
Symbol
NTRIG
PTRIG
MODE
WAKE
NRES
TEMP
PVCC
GND
GND
RXD
VCC
TXD
LIN
NC
NC
NC
TM
EN
VS
Function
High-level watchdog trigger input from microcontroller; if not needed, leave open or connect to GND
High-voltage input for local wake-up request; if not needed, connect to VS
LIN bus line input/output
Output undervoltage and watchdog reset
For debug mode, high watchdog off, low watchdog on
5V regulator sense input pin
Battery supply
Heat slug is connected to GND (pin 5)
Enables the device into Normal mode
Low-level watchdog trigger input from microcontroller; if not needed, leave open or connect to VCC
System ground
Not connected
Not connected
Receive data output
Not connected
Transmit data input; active low output (strong pull down) after a local wake-up request
External resistor for adjustable watchdog timing
For factory testing only (tie to ground)
Additional ground
Chip temperature output pin; if not needed connect to GND
5V regulator output/driver pin
PTRIG
NTRIG
WAKE
GND
EN
1
2
3
4
5
20
6
MLP 5 mm
19
0.65 mm pitch
ATA6621N
7
20 lead
18
8
5 mm
17
9
16
10
15
14
13
12
11
MODE
TM
WD_OSC
NRES
TXD
ATA6621N
3