Sharp LC-22LE240K Service Manual ▷ View online
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LC-22LE240
10. SPI FLASH MEMORY - MX25L1005 (U158)
10.1. General Description
MX25L1005 is a CMOS 1,048,576 bit serial Flash memory, which is configured as
131,072 x 8 internally.The MX25L1005 feature a serial peripheral interface and software
protocol allowing operation on a simple 3-wire bus. The three bus signals are a clock
input (SCLK), a serial data input (SI), and a serial data output (SO). SPI access to the
device is enabled by CS# input. The MX25L1005 provide sequential read operation on
whole chip. After program/erase command is issued, auto program/ erase algorithms
which program/ erase and verify the specified page or sector/block locations will be
executed. Program command is executed on page (256 bytes) basis, and erase
command is executes on chip or sector(4K-bytes) or block(64K-bytes). To provide user
with ease of interface, a status register is included to indicate the status of the chip. The
status read command can be issued to detect completion status of a program or erase
operation via WIP bit. When the device is not in operation and CS# is high, it is put in
standby mode and draws less than 10uA DC current. The MX25L1005 utilize MXIC's
proprietary memory cell, which reliably stores memory contents even after 100,000
program and erase cycles.
10.2. Features
Serial Peripheral Interface (SPI) compatible -- Mode 0 and Mode 3
1,048,576 x 1 bit structure
32 Equal Sectors with 4K byte each, Any Sector can be erased individually
2 Equal Blocks with 64K byte each, Any Block can be erased individually
Single Power Supply Operation
2.7 to 3.6 volt for read, erase, and program operations
Latch-up protected to 100mA from -1V to Vcc +1V
Low Vcc write inhibit is from 1.5V to 2.5V
10.3. Absolute Maximum Ratings
RATING
VALUE
Ambient Operating
Temperature
0°C to 70°C
Storage Temperature
-55°C to 125°C
Applied Input Voltage
-0.5v to 4.6v
Applied Output Voltage
-0.5v to 4.6v
VCC to Ground Potential
-0.5v to 4.6v
10.4. Pinning
8-PIN SOP (150mil)
SYMBOL
DESCRIPTION
CS#
Chip select
SI
Serial Data Input
SO
Serial Data Output
SCLK
Clock Input
HOLD#
Hold, to pause the device without
deselecting the device
VCC
+3.3v Power Supply
GND
Ground
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LC-22LE240
11. NAND FLASH MEMORY – NAND512XXA2C (U162)
11.1. General Description
The NAND flash 528-byte/ 264-word page is a family of non-volatile flash memories that
uses the single level cell (SLC) NAND technology. It is referred to as the small page
family.
The NAND512R3A2C, NAND512R4A2C, and NAND512W3A2C have a density of 512
Mbits and operate with either a 1.8 V or 3 V voltage supply. The size of a page is either
528 bytes (512 + 16 spare) or 264 words (256 + 8 spare) depending on whether the
device has a x8 or x16 bus width.
The address lines are multiplexed with the Data Input/Output signals on a multiplexed x8
or x16 input/output bus. This interface reduces the pin count and makes it possible to
migrate to other densities without changing the footprint.
To extend the lifetime of NAND flash devices it is strongly recommended to implement an
error correction code (ECC). The use of ECC correction allows to achieve up to 100,000
program/erase cycles for each block. A write protect pin is available to give a hardware
protection against program and erase operations.
11.2. Features
High density NAND flash memories
o 512-Mbit memory array
o Cost effective solutions for mass storage applications
NAND interface
o x8 or x16 bus width
o Multiplexed address/ data
Supply voltage: 1.8 V, 3 V
Page size
o x8 device: (512 + 16 spare) bytes
o x16 device: (256 + 8 spare) words
Block size
o x8 device: (16K + 512 spare) bytes
o x16 device: (8K + 256 spare) words
Page read/program
o Random access: 12 μs (3 V)/15 μs (1.8 V) (max)
o Sequential access: 30 ns (3 V)/50 ns (1.8 V) (min)
o Page program time: 200 μs (typ)
Copy back program mode
Fast block erase: 2 ms (typ)
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LC-22LE240
Status register
Electronic signature
Chip Enable ‘don’t care’
Security features
o OTP area
Serial number (unique ID) option
Hardware data protection
o Program/erase locked during power transitions
Data integrity
o 100,000 program/erase cycles (with ECC)
o 10 years data retention
RoHS compliant packages
Development tools
o Error correction code models
o Bad blocks management and wear leveling algorithms
11.3. Pinning
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LC-22LE240
12. LM1117(U175, U180, U181)
12.1. General Description
The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA
of load current. It has the same pin-out as National Semiconductor’s industry standard
LM317. The LM1117 is available in an adjustable version, which can set the output
voltage from 1.25V to 13.8V with only two external resistors. In addition, it is also
available in five fixed voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V. The LM1117 offers
current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap
reference to as-sure output voltage accuracy to within ±1%. The LM1117 series is
available in SOT- 223, TO-220, and TO-252 D-PAK packages. A minimum of 10μF
tantalum capacitor is required at the output to improve the transient response and
stability.
12.2. Features
Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable Versions
Space Saving SOT-223 Package
Current Limiting and Thermal Protection
Output Current 800mA
Line Regulation 0.2% (Max)
Load Regulation 0.4% (Max)
Temperature Range
LM1117 0°C to 125°C
LM1117I -40°C to 125°C
12.3. Applications
2.85V Model for SCSI-2 Active Termination
Post Regulator for Switching DC/DC Converter
High Efficiency Linear Regulators 15
32” TFT TV Service Manual 10/01/2005
Battery Charger
Battery Powered Instrumentation
12.4. Absolute Maximum Ratings
12.5. Pinning
13. MP2012 (U176)
13.1. General Description
The MP2012 is a fully integrated, internally compensated 1.2MHz fixed frequency PWM
step-down converter. It is ideal for powering portable equipment that runs from a single
cell Lithium-Ion (Li+) Battery, with an input range from 2.7V to 6V. The MP2012 can
provide up to 1.5A of load current with output voltage as low as 0.8V. It can also operate
at 100% duty cycle for low dropout applications. With peak current mode control and
internal compensation, the MP2012 is stable with ceramic capacitors and small inductors.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
13.2. Features
2.7-6V Input Operation Range
Output Adjustable from 0.8V to VIN
1μA Max Shutdown Current.
Up to 95% Efficiency
100% Duty Cycle for Low Dropout
Applications
1.2MHz Fixed Switching Frequency
Stable with Low ESR Output Ceramic
Capacitors
Thermal Shutdown
Cycle-by-Cycle Over Current Protection
Short Circuit Protection
Available in 6-pin 3x3mm QFN
13.3. Pinning
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