AN1278 datasheet(9/44 Pages) STMICROELECTRONICS

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LIN (LOCAL INTERCONNECT NETWORK) SOLUTIONS

Table 5. Flash, ROM MCUs (ST9 core)

Note: The master MCUs listed above have all an on-chip CAN peripheral. This corresponds to

the initial LIN concept: the LIN network as sub-network of CAN. However any other MCUs

(listed above as slave for example) can be used to implement a master node.

2.2 LIN TRANSCEIVERS

To ensure the physical behaviour of the LIN bus STMicroelectronics also offers K-Line drivers

and a dedicated LIN Bus Transceiver.

2.2.1 L9637 K-Line Transceiver

The L9637 K-Line transceiver is a monolithic integrated circuit containing standard ISO 9141

compatible interface functions. Its features are listed below.

Operating power supply voltage range 4.5V

≤ V

S ≤ 36V (40V for transients)

Reverse supply battery protected down to VS ≥ -24V

Stand-by mode with very low current consumption ISSB 1µA @Vcc 0.5V

Low quiescent current in OFF condition ISOFF = 120µA

TTL compatible TX input

Bidirectional K-I/O pin with supply voltage dependent input threshold

Overtemperature shut down function selective to K-I/O pin

Wide input and output voltage range -24V

≤ V

K ≤ VS

K output current limitation, typical IK = 60mA

Defined OFF output status in under voltage condition and VS or GND interruption

Controlled output slope for low EMI

High input impedance for open VS or GND connection

Defined output on status of LO or RX for open LI or K inputs

Defined K output off for TX input open

Features

ST92F150JD

ST92F150JC

ST92F124J

ST92F124

FLASH - bytes

128K

60/128K

RAM - bytes

2/4K

EEPROM - bytes

1K1K1K

Timers

2MFT, 2 EFT, STIM,

2MFT, 0/2 EFT, STIM, WD

Serial Interface

2 SCI, SPI, I²C

1/2 SCI, SPI, I²C

ADC

16 x 10 bits

8/16 x 10 bits

Network Interface

2 CAN, J1850

CAN, J1850

J1850

Temp. Range

-40°C to 125°C or -40°C to 85°C

Package

P/TQFP100

P/TQFP100 and TQFP64

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