Sharp LC-32LE351K (serv.man2) Service Manual ▷ View online
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9. 16M-BIT [16M x 1] CMOS SERIAL FLASH EEPROM
MX25L1602 Mstar SPI Flash
a) Key Features
■ HIGH DENSITY NAND FLASH MEMORIES GENERAL
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16,777,216 x 1 bit structure
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256 Equal Sectors with 8K-byte each
-Any sector can be erased
-Any sector can be erased
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4096 Equal Segments with 512-byte each
-Provides sequential output within any segment
-Provides sequential output within any segment
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Single Power Supply Operation
-3.0 to 3.6 volt for read, erase, and program operations
-3.0 to 3.6 volt for read, erase, and program operations
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Latch-up protected to 100mA from -1V to Vcc +1V
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Low Vcc write inhibit is equal to or less than 2.5V
PERFORMANCE
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High Performance
-Fast access time: 20MHz serial clock (50pF + 1TTL Load)
-Fast program time: 5ms/page (typical, 128-byte per page)
-Fast erase time: 300ms/sector (typical, 8K-byte per sector)
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Low Power Consumption
-Low active read current: 10mA (typical) at 17MHz
-Low active programming current: 10mA (typical)
-Low active erase current: 10mA (typical)
-Low standby current: 30uA (typical, CMOS)
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Minimum 100,000 erase/program cycle
SOFTWARE FEATURES
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Input Data Format
-1-byte Command code, 3-byte address, 1-byte byte address
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512-byte Sequential Read Operation
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Built in 9-bit (A0 to A8) pre-settable address counter to support the 512-byte sequential read
operation
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Auto Erase and Auto Program Algorithm
-Automatically erases and verifies data at selected sector
-Automatically programs and verifies data at selected page by an internal algorithm that
-Automatically erases and verifies data at selected sector
-Automatically programs and verifies data at selected page by an internal algorithm that
automatically times the program pulse widths (Any page to be programmed should have page in the erased
state first)
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Status Register Feature -Provides detection of program and erase operation completion.
-Provides auto erase/ program error report
HARDWARE FEATURES
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SCLK Input
-Serial clock input
-Serial clock input
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SI Input
-Serial Data Input
-Serial Data Input
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SO Output
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-Serial Data Output
PACKAGE
-28-pin SOP (330mil)
b) General Description
The MX25L1602 is a CMOS 16,777,216 bit serial Flash EEPROM, which is configured as 2,097,152 x
8 internally. The MX25L1602 features 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),
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 MX25L1602 provide sequential read operation on whole chip. The sequential read operation is
executed on a segment (512 byte) basis. User may start to read from any byte of the segment. While the
end of the segment is reached, the device will wrap around to the beginning of the segment and
end of the segment is reached, the device will wrap around to the beginning of the segment and
continuously outputs data until CS goes high.
After program/erase command is issued, auto program/ erase algorithms which program/erase and
verify the specified page locations will be executed. Program command is executed on a page (128 bytes)
basis, and erase command is executed on both chip and sector (8K bytes) basis.
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 and error flag status of a program or erase
operation.
operation.
When the device is not in operation and CS is high, it is put in standby mode and draws less than 30uA
DC current.
The MX25L1602 utilizes MXIC's proprietary memory cell which reliably stores memory contents even
after 100,000 program and erase cycles.
Figure: Pin configuration
Table 16: Pin description
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10.USB Interface
Mstar IC has two input port for USB, therefore air mause, internal wi-fi interface and USB2 are
combined with HUB. This property is optional. If air mause and wi-fi interfaces are not alined, two USB
are connected directly to main IC.
are connected directly to main IC.
Figure 10: USB description
USB2512B
a) General Description
The SMSC USB251xB/xBi hub is a family of low-power, configurable, MTT (multi transaction
translator) hub controller IC products for embedded USB solutions. The x in the part number indicates the
number of downstream ports available, while the B indicates battery charging support. The SMSC hub
number of downstream ports available, while the B indicates battery charging support. The SMSC hub
supports lowspeed, full-speed, and hi-speed (if operating as a hispeed hub) downstream devices on all of
the enabled downstream ports.
the enabled downstream ports.
b) Features
- USB251xB/xBi products are fully footprint compatible with USB251x/xi/xA/xAi products as
- USB251xB/xBi products are fully footprint compatible with USB251x/xi/xA/xAi products as
direct drop-in replacements
Cost savings include using the same PCB components and application of USB-IF Compliance
by Similarity
- Full power management with individual or ganged power control of each downstream port
- Fully integrated USB termination and pull-up/pulldown resistors
- Fully integrated USB termination and pull-up/pulldown resistors
- Supports a single external 3.3 V supply source; internal regulators provide 1.2 V
internal core voltage
- Onboard 24 MHz crystal driver, ceramic resonator, or external 24/48 MHz clock input
- Customizable vendor ID, product ID, and device ID
- Customizable vendor ID, product ID, and device ID
- 4 kilovolts of HBM JESD22-A114F ESD protection (powered and unpowered)
- Supports self- or bus-powered operation
- Supports self- or bus-powered operation
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- Supports the USB Battery Charging specification Rev. 1.1 for Charging Downstream
Ports (CDP)
- 36-pin QFN (6x6 mm) Lead-free RoHS compliant package
- USB251xBi products support the industrial temperature range of -40ºC to +85ºC
- USB251xBi products support the industrial temperature range of -40ºC to +85ºC
- USB251xB products support the extended commercial temperature range of 0ºC to +85ºC
c) Applications
- LCD monitors and TVs
- Multi-function USB peripherals
- PC motherboards
- Set-top boxes, DVD players, DVR/PVR
- Multi-function USB peripherals
- PC motherboards
- Set-top boxes, DVD players, DVR/PVR
- Printers and scanners
- PC media drive bay
- Portable hub boxes
- PC media drive bay
- Portable hub boxes
- Mobile PC docking
- Embedded systems
- Embedded systems
Figure 11: Pin configurations
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