MC908LJ24CPBER Freescale Semiconductor, MC908LJ24CPBER Datasheet - Page 356

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MC908LJ24CPBER

Manufacturer Part Number
MC908LJ24CPBER
Description
IC MCU 24K FLASH 4/8MHZ 64-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC908LJ24CPBER

Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SPI
Peripherals
LCD, LVD, POR, PWM
Number Of I /o
40
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Controller Family/series
HC08
No. Of I/o's
40
Ram Memory Size
768Byte
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08LJ
Core
HC08
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
48
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68EML08LJLKE, ZK-HC08LX-A, M68CBL05CE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 6 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
 Details

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC908LJ24CPBER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Liquid Crystal Display (LCD) Driver
17.5.4 Fast Charge and Low Current
Data Sheet
356
The LCD cycle frame is determined by the equation:
For example, for 1/3 duty and 256Hz waveform base clock:
The default value for each of the bias resistors (see
in the resistor ladder is approximately 37kΩ at V
high current drain through the 37kΩ resistor ladder may not be suitable
for some LCD panel connections. Lowering this current is possible by
setting the LC bit in the LCD control register, switching the R
to 146kΩ.
Although the lower current drain is desirable, but in some LCD panel
connections, the higher current is required to drive the capacitive load of
the LCD panel. In most cases, the higher current is only required when
the LCD waveforms change state (the rising and falling edges in the LCD
output waveforms). The fast charge option is designed to have the high
current for the switching and the low current for the steady state. Setting
the FC bit in the LCD control register selects the fast charge option. The
R
LCD waveform switching edge, and then back to 146kΩ for the steady
state period. The duration of the fast charge time is set by configuring the
FCCTL[1:0] bits in the LCD clock register, and can be LCDCLK/32,
LCDCLK/64, or LCDCLK/128.
relative to the BP0 waveform.
LCD
value is set to 37kΩ (for high current) for a fraction of time for each
LCD CYCLE FRAME =
LCD CYCLE FRAME =
Liquid Crystal Display (LCD) Driver
= 11.72 ms
LCD WAVEFORM BASE CLOCK × DUTY
256 × (1/3)
Figure 17-4
1
MC68HC908LJ24/LK24 — Rev. 2.1
shows the fast charge clock
1
LCD
Freescale Semiconductor
Figure
= 3V. The relatively
17-3), R
LCD
value
LCD
,

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