ATA6621 ATMEL Corporation, ATA6621 Datasheet - Page 3

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ATA6621

Manufacturer Part Number
ATA6621
Description
Manufacturer
ATMEL Corporation
Datasheet

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2. Pin Configuration
Figure 2-1.
Table 2-1.
4887B–AUTO–01/06
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
PTRIG
NTRIG
MODE
WAKE
NRES
TEMP
PVCC
GND
GND
RXD
VCC
TXD
LIN
EN
NC
NC
NC
TM
VS
Enables the device into Normal Mode
High-level watchdog trigger input from microcontroller; if not needed, leave open or connect to GND
Low-level watchdog trigger input from microcontroller; if not needed, leave open or connect to VCC
High-voltage input for local wake-up request; if not needed, connect to VS
System ground
Not connected
LIN bus line input/output
Not connected
Receive data output
Not connected
Transmit data input; active low output (strong pull down) after a local wake-up request
Output undervoltage and watchdog reset
Watchdog oscillator
For factory testing only (tie to ground)
For factory testing only (tie to ground)
Additional ground
Chip temperature output pin
5V regulator sense input pin
5V regulator output/driver pin
Battery supply
Heat slug is connected to GND (pin 5)
Function
NTRIG
PTRIG
WAKE
GND
EN
1
2
3
4
5
20
6
MLP 5 mm
19
0.65 mm pitch
7
ATA6621
20 lead
18
8
5 mm
17
9
16
10
15
14
13
12
11
MODE
TM
WD_OSC
NRES
TXD
ATA6621
3

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