MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 550

IC MCU 32BIT 256KB FLASH 100LQFP

MCF51EM256CLL

Manufacturer Part Number
MCF51EM256CLL
Description
IC MCU 32BIT 256KB FLASH 100LQFP
Manufacturer
Freescale Semiconductor
Series
MCF51EMr
Datasheets

Specifications of MCF51EM256CLL

Core Processor
Coldfire V1
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, SCI, SPI
Peripherals
LCD, LVD, PWM, WDT
Number Of I /o
63
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 16x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LQFP
Processor Series
MCF51EM
Core
ColdFire V1
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
RS-232, LIN
Maximum Clock Frequency
50 MHz
Number Of Timers
3
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
DEMOEM
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCF51EM256CLL
Manufacturer:
FREESCALE
Quantity:
110
Part Number:
MCF51EM256CLL
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
LCD Driver Module
24.4.4.2.1
When VSUPPLY[1:0] = 11, powersw1, powersw2, are deasserted. V
module internally, so the LCD module requires an external power source for V
the charge pump is disabled.
If the charge pump is enabled, external power must be applied to V
pump will generate the other LCD bias voltages V
Internal V
If the charge pump is enabled the internal regulated voltage, V
LCD bias voltages.In this state external voltage source should not be connected to V
controlled by the LCD regulated voltage control (LCDRVC) register. The figure above,
shows that V
V
output as V
V
be approximately 5 V.
The HREFSEL bit in the LCDSUPPLY register is used to set V
shown in
voltage.The trim can be used to increase or decrease the regulated voltage by 1.5% for each count. A total
of ±12% of change can be done to the regulated
V
24-34
LL1
LCDON.
LL1
V
glass operation.
The HREFSEL bit is used to select
1.0 or 1.67 V range for V
IREG
, V
is connected to the internal charge pump.Using the charge pump, the value of V
LL2
LCD Operational State
is connected to V
HREFSEL = 0
For 3-V LCD glass, V
HREFSEL =1
Table
HREFSELL
IREG
LL3.
, and V
IREG
LCD External Power Supply, VSUPPLY[1:0] = 11
V
24-23.The LCDRVC contains trim bits that can be used to make changes to the regulated
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
LL3
Table 24-23. LCD bias Voltages VLL1, VLL2, and VLL3 based on V
is connected to V
LL3
, an LCD bias voltage, is equal to the voltage required to energize the LCD panel,
values based on the value of V
LL1
IREG
for 3 V
Table 24-22. LCD Power Supply Configuration
1.67 V
V
LL3
1.0 V
IREG
For 3 V glass operation HREFSEL= 0, V
V
V
Charge pump is used to generate V
IREG
LCD
should be approximately 3 V; while for 5-V LCD glass, V
LL1
is not connected.
is connected V
when the RVEN bit is set.
LCD Power Supply Configuration
voltage.Table 24-23
V
LL1
1.67 V
1.0 V
LL1
LL1
= V
IREG
internally.
and V
ref
.
LL2.
IREG
LL2
IREG
V
LL3
, can be used as an input to generate the
and V
LL2
IREG
shows the selected LCD bias voltages
DD
to approximately 1.0 V or 1.67 V as
3.33 V
. With this configuration, the charge
2.0 V
= 2 × V
= 1 V.
LL3
is not available to power the LCD
.
ref
LL1,
V
IREG
11
V
Freescale Semiconductor
LL1
LL2,
LL3
LL1
0
. V
3.0 V
5.0 V
Figure
= 3 × V
and V
is tripled and
IREG
X
LL3
ref
LL3
24-15,
1
is
should
when
1

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