MM908E626AVDWB Freescale Semiconductor, MM908E626AVDWB Datasheet - Page 20

• Manufacturer Part Number: MM908E626AVDWB
• Description: IC STEPPER MOTOR DRIVER 54-SOIC
• Manufacturer: Freescale Semiconductor
• Type: Stepper Motor Driverr

Specifications of MM908E626AVDWB

• Applications: Automotive Mirror Control
• Core Processor: HC08
• Program Memory Type: FLASH (16 kB)
• Controller Series: 908E
• Ram Size: 512 x 8
• Interface: SCI, SPI
• Number Of I /o: 13
• Voltage - Supply: 8 V ~ 18 V
• Operating Temperature: -40°C ~ 115°C
• Mounting Type: Surface Mount
• Package / Case: 54-SOIC (7.5mm Width) Exposed Pad, 54-eSOIC, 54-HSOIC
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 8 V to 18 V
• Supply Current: 20 mA
• Mounting Style: SMD/SMT
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

HTIE — HIGH TEMPERATURE INTERRUPT
ENABLE BIT
temperature flag, HTF. Reset clears the HTIE bit.
LVIE — LOW VOLTAGE INTERRUPT ENABLE BIT
voltage flag, LVF. Reset clears the LVIE bit.
HVIE — HIGH VOLTAGE INTERRUPT ENABLE BIT
voltage flag, HVF. Reset clears the HVIE bit.
RESET INTERNAL SOURCES
Autonomous Watchdog
(watchdog function).
High Temperature Reset
the temperature rises above a certain value. The reset is
maskable with bit HTRE in the Reset Mask Register. After a
reset the high temperature reset is disabled.
20
908E626
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
This read / write bit enables CPU interrupts by the high
• 1 = Interrupt requests from HTF flag enabled.
• 0 = Interrupt requests from HTF flag disabled.
This read / write bit enables CPU interrupts by the low
• 1 = Interrupt requests from LVF flag enabled.
• 0 = Interrupt requests from LVF flag disabled.
This read / write bit enables CPU interrupts by the high
AWD modules generates a reset because of a timeout
To prevent damage to the device, a reset will be initiated if
RST_A
VDD
Figure 10. Internal Reset Routing
Low-Voltage Reset
OCIE — OVER-CURRENT INTERRUPT ENABLE BIT
overcurrent flag, OCF. Reset clears the OCIE bit.
RESET
external reset source, as explained in the paragraphs below.
Figure 10
Low Voltage Reset
falls below a certain threshold, it will pull down the
High Voltage Reset
the voltage is above a certain threshold, it will pull down the
RST_A
Mask Register. After a reset the high voltage reset is
disabled.
SPI REGISTERS
AWDRE Flag
HVRE Flag
HTRE Flag
• 1 = Interrupt requests from HVF flag enabled.
• 0 = Interrupt requests from HVF flag disabled.
This read / write bit enables CPU interrupts by the
• 1 = Interrupt requests from OCF flag enabled.
• 0 = Interrupt requests from OCF flag disabled.
The 908E626 chip has four internal reset sources and one
The LVR is related to the internal V
The HVR is related to the external V
pin. The reset is maskable with bit HVRE in the Reset
depicts the internal reset sources.
High-Temperature
Reset Sensor
High-Voltage
AWD Reset
Reset Sensor
Sensor
MONO
FLOP
Analog Integrated Circuit Device Data
Freescale Semiconductor
DD
SUP
. In case the voltage
voltage. In case
RST_A
pin.