MCZ33689DEW Freescale Semiconductor, MCZ33689DEW Datasheet - Page 22

• Manufacturer Part Number: MCZ33689DEW
• Description: IC SYSTEM BASIS CHIP LIN 32-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MCZ33689DEW

• Applications: Automotive
• Current - Supply: 5mA
• Voltage - Supply: 5.5 V ~ 18 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 1
Normal, Sleep, and Stop. Operational modes are controlled
by MODE1 and MODE2 bits in the SPI Register (refer to
Logic Commands and Registers on page
there are two transitional modes: Reset and Normal Request.
22
33689
FUNCTIONAL DESCRIPTION
FUNCTIONAL DEVICE OPERATION
As described below and depicted in
on page 23, the 33689 has three operational modes:
Power
Down
Legend
Watchdog Selected: External resistor between
Watchdog Not Selected:
Watchdog Fail: Watchdog trigger occurs in closed window or no SPI Watchdog trigger command.
Stop Command: SPI stop command.
Sleep Command: SPI sleep request followed by SPI sleep command.
Wake-Up: L1 or L2 state change or LIN bus wake-up or
Reset
VDD HIGH & Reset Counter (1.0 ms) Expired & Watchdog Not Selected
Figure 1
24). In additional,
FUNCTIONAL DEVICE OPERATION
VDD LOW OR (Watchdog
Fail & Watchdog Selected)
Figure 1. 33689 Modes State Diagram
VDD HIGH & Reset Counter (1.0 ms)
Expired & Watchdog Selected
VDD LOW (150 ms) Expired & VSUV Bit = Logic [0]
below and
WDC
OPERATIONAL MODES
VDD LOW OR
(Normal Request
Timeout Occurs
[150 ms] & Watchdog
Selected)
Wake-Up
VDD LOW
pin connected to GND.
WDC
RESET MODE
Mode for 1 ms if V
150 ms the 33689 goes in Sleep Mode.
NORMAL REQUEST MODE
for 1 ms in Reset Mode. In this mode, the LIN bus can
transmit and receive information.
At power up, the 33689 switches automatically to Reset
Before entering in Normal Request Mode, the 33689 stays
pin and GND or
CS
Request
Normal
Normal
Stop
rising edge.
WDC
DD
goes high. If V
pin open.
Analog Integrated Circuit Device Data
Sleep
Freescale Semiconductor
DD
stays low, after