MC68HC908JK8CP Freescale Semiconductor, MC68HC908JK8CP Datasheet - Page 178

• Manufacturer Part Number: MC68HC908JK8CP
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908JK8CP

• Cpu Family: HC08
• Device Core Size: 8b
• Frequency (max): 8MHz
• Interface Type: SCI
• Program Memory Type: Flash
• Program Memory Size: 8KB
• Total Internal Ram Size: 256Byte
• # I/os (max): 15
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 13-chx8-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 20
• Package Type: PDIP
• Lead Free Status / Rohs Status: Not Compliant

Low Voltage Inhibit (LVI)
15.4 LVI Control Register (CONFIG2/CONFIG1)
The LVI module is controlled by three bits in the configuration registers, CONFIG1 and CONFIG2.
LVID — Low Voltage Inhibit Disable Bit
LVIT1, LVIT0 — LVI Trip Voltage Selection Bits
15.5 Low-Power Modes
The STOP and WAIT instructions put the MCU in low-power-consumption standby modes.
15.5.1 Wait Mode
The LVI module, when enabled, will continue to operate in wait mode.
15.5.2 Stop Mode
The LVI module, when enabled, will continue to operate in stop mode.
178
LVID disables the LVI module. Reset clears LVID.
These two bits determine at which level of V
are cleared by a power-on reset only.
1 = Low voltage inhibit disabled
0 = Low voltage inhibit enabled
Address:
Address:
1. See
Reset:
Reset:
Read:
Read:
Write:
Write:
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
LVIT1
0
0
1
1
Chapter 17 Electrical Specifications
IRQPUD
COPRS
$001E
$001F
Bit 7
Bit 7
0
0
Figure 15-2. Configuration Register 2 (CONFIG2)
Figure 15-3. Configuration Register 1 (CONFIG1)
LVIT0
R
R
6
0
6
0
Table 15-1. Trip Voltage Selection
0
1
0
1
R
R
5
0
5
0
DD
Trip Voltage
V
V
V
LVR3
LVR3
LVR5
the LVI module will come into action. LVIT1 and LVIT0
Reserved
LVIT1
Cleared by POR only
for full parameters.
LVID
4
4
0
(2.49V)
(2.49V)
(4.25V)
(1)
LVIT0
R
3
3
0
SSREC
For V
For V
For V
R
2
0
2
0
Comments
DD
DD
DD
=3V operation
=3V operation
=5V operation
STOP
R
1
0
1
0
Freescale Semiconductor
ICLKDIS
STOP_
COPD
Bit 0
Bit 0
0
0