MC68HC908GT8CFB Freescale Semiconductor, MC68HC908GT8CFB Datasheet - Page 115

• Manufacturer Part Number: MC68HC908GT8CFB
• Description: IC MCU 8K FLASH 8MHZ 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GT8CFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 34
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

continually entering and exiting reset if V
V
10.3.4 LVI Trip Selection
The LVI5OR3 bit in the configuration register selects whether the LVI is configured for 5-V or 3-V
protection.
10.4 LVI Status Register
The LVI status register (LVISR) indicates if the V
LVIOUT — LVI Output Bit
10.5 LVI Interrupts
The LVI module does not generate interrupt requests.
10.6 Low-Power Modes
The STOP and WAIT instructions put the MCU in low power-consumption standby modes.
10.6.1 Wait Mode
If enabled, the LVI module remains active in wait mode. If enabled to generate resets, the LVI module can
generate a reset and bring the MCU out of wait mode.
Freescale Semiconductor
TRIPF
This read-only flag becomes set when the V
Table
by the hysteresis voltage, V
10-1). Reset clears the LVIOUT bit.
Address:
The microcontroller is guaranteed to operate at a minimum supply voltage.
The trip point (V
Chapter 20 Electrical Specifications
Reset:
Read:
Write:
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
LVIOUT
$FE0C
Bit 7
0
= Unimplemented
Figure 10-3. LVI Status Register (LVISR)
V
TRIPF
TRIPF
6
0
0
V
Table 10-1. LVIOUT Bit Indication
V
HYS
DD
DD
< V
[5 V] or V
V
> V
< V
.
DD
DD
DD
TRIPR
TRIPF
< V
5
0
0
is approximately equal to V
TRIPR
TRIPF
DD
DD
NOTE
voltage falls below the V
for the actual trip point voltages.)
4
0
0
voltage was detected below the V
[3 V]) may be lower than this. (See
Previous value
3
0
0
LVIOUT
0
1
2
0
0
TRIPF
TRIPF
. V
1
0
0
TRIPR
trip voltage (see
is greater than
TRIPF
Bit 0
LVI Status Register
0
0
level.
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