Rainbow-electronics ATA6624 Manual de usuario descargar pdf (Pagina 3)

4986F–AUTO–07/08

ATA6622/ATA6624/ATA6626

2. Pin Configuration

Figure 2-1. Pinning QFN20

67 8 109

20 19 18

QFN 5 mm × 5 mm

0.65 mm pitch

20 lead

ATA6622/24/26

TXD

NRES

WD_OSC

MODE

KL15

GND

PVCC

VCC

INH

RXD

GND

LIN

GND

WAKE

NTRIG

GND

Table 2-1. Pin Description

Pin Symbol Function

1 EN Enables the device in Normal Mode

2 GND System ground (optional)

3 NTRIG Low-level watchdog trigger input from microcontroller

4 WAKE High-voltage input for local wake-up request; if not needed, connect to VS

5 GND System ground (mandatory)

6 GND System ground (optional)

7 LIN LIN-bus line input/output

8 GND System ground (optional)

9 RXD Receive data output

10 INH Battery related output for controlling an external voltage regulator

11 TXD Transmit data input; active low output (strong pull down) after a local wake-up request

12 NRES Output undervoltage and watchdog reset (open drain)

13 WD_OSC External resistor for adjustable watchdog timing

14 TM For factory testing only (tie to ground)

15 MODE For debug mode: low, watchdog is on; high, watchdog is off

16 KL_15 Ignition detection (edge sensitive)

17 GND System ground (optional)

18 PVCC 3.3V/5V regulator sense input pin

19 VCC 3.3V/5V regulator output/driver pin

20 VS Battery supply

Backside Heat slug is connected to all GND pins

1 2 3 4 5 6 7 8 ... 28 29

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Rainbow-electronics ATA6624 Manual de usuario Pagina 3

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