MC68HC908RF2MFA Freescale Semiconductor, MC68HC908RF2MFA Datasheet - Page 103

• Manufacturer Part Number: MC68HC908RF2MFA
• Description: IC MCU 2K FLASH 4MHZ 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908RF2MFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: LVD, POR, PWM, RF Mod
• Number Of I /o: 12
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

Data Sheet — MC68HC908RF2
8.1 Introduction
8.2 Features
8.3 Functional Description
MC68HC908RF2 — Rev. 4.0
MOTOROLA
The low-voltage inhibit (LVI) module monitors the voltage on the V
set a low voltage sense bit when V
LVI will force a reset when the V
Features of the LVI module include:
Figure 8-1
bandgap reference circuit and two comparators. The LVI monitors V
during normal MCU operation. When enabled, the LVI module generates a reset
when V
•
•
DETECTOR
BATTERY
Two levels of low-voltage condition are detected:
–
–
User-configurable for stop mode
Freescale Semiconductor, Inc.
WEAK
DD
For More Information On This Product,
Low-voltage detection
Low-voltage reset
falls below the V
shows the structure of the LVI module. The LVI module contains a
V
V
DETECTOR
DD
DD
Go to: www.freescale.com
BATTERY
DEAD
CGMXCLK
> V
≤ V
Low-Voltage Inhibit (LVI)
V
Figure 8-1. LVI Module Block Diagram
DD
LVS
LVS
= 0
= 1
LVR
V
V
DD
DD
LVIRST BIT IN CONFIGURATION REGISTER
> V
≤ V
threshold.
DD
Section 8. Low-Voltage Inhibit (LVI)
LVR
LVR
DD
voltage falls to the LVI trip voltage.
= 0
= 1
LVI PWR BIT IN CONFIGURATION REGISTER
voltage falls to the LVI sense voltage. The
DIGITAL FILTER
V
DD
STOP INSTRUCTION
LVI STOP BIT IN CONFIGURATION REGISTER
LOWV
LVITRIP
LOWV FLAG
DD
DD
pin and will
voltage
Data Sheet
RESET
103