MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 308
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MC908MR8MPE
Manufacturer Part Number
MC908MR8MPE
Description
IC MCU 8BIT 8K FLASH 28-PDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MC908MR8MPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
12
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Low-Voltage Inhibit (LVI)
17.4.4 LVI Trip Selection
17.5 LVI Status and Control Register
Technical Data
308
V
DD
V
V
V
> V
NOTE:
DD
DD
DD
At level:
LVRX
< V
< V
< V
LVRX
LVRX
LVRX
+ V
LVHX
The TRPSEL bit allows the user to choose between 5 percent and
10 percent tolerance when monitoring the supply voltage. The
10 percent option is enabled out of reset. Writing a logic 1 to TRPSEL
will enable the 5 percent option.
The MCU is guaranteed to operate at a minimum supply voltage. The trip
point (V
The LVI status register flags V
Reset:
LVIOUT — LVI Output Bit
dress:
Read: LVIOUT
Write:
Ad-
This read-only flag becomes set when the V
V
clears the LVIOUT bit.
LVRX
Figure 17-3. LVI Status and Control Register (LVISCR)
Table 17-1. LVIOUT Bit Indication
$FE0F
LVR1
Bit 7
R
R
voltage for 32 to 40 CGMXCLK cycles. See
0
or V
V
Low-Voltage Inhibit (LVI)
DD
= Reserved
Between 32 and 40 CGMXCLK cycles
For number of CGMXCLK cycles:
LVR2
R
6
0
0
< 32 CGMXCLK CYCLES
) may be lower than this.
> 40 CGMXCLK cycles
TRPS-
EL
5
0
Any
DD
voltages below the V
R
4
0
0
R
3
0
0
DD
MC68HC908MR8 — Rev 4.1
voltage falls below the
Freescale Semiconductor
R
2
0
0
Table
LVRX
R
1
0
0
LVIOUT
17-1. Reset
0 or 1
level.
0
0
1
Bit 0
R
0
0
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