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PDF OTI-6828 Data sheet ( Hoja de datos )
| Número de pieza | OTI-6828 | |
| Descripción | Flash Disk Controller | |
| Fabricantes | Oti | |
| Logotipo |  |
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OTi
Ours Technology Inc.
OTi-6828
FLASH DISK CONTROLLER
Description
The flash disk controller (OTi_6828) is a disk controller used to make a linear flash device array
look likes a normal disk, hiding the flash related problems with erasing.
The OTi_6828 is a controller with USB interface. The USB interface is for full speed operation
(12Mb/s). It conforms to USB Specification, Version 1.1. The USB transceiver is embedded in this
controller. With stable slew-rate control, the controller reduces EMI.
The OTi_6828 has a Phase Lock Loop (PLL) embedded. The PLL provides all clocks needed in
this controller. It needs an externally provided clock operating in 14.318MHz.
The OTi_6828 has integrated the regulator for 5V input and 3.3V output. It also supports voltage
detector for power on reset.
The OTi_6828 can control up to 4 pieces of NAND flash memory. The flash capacity can be 32M
bits up to 1G bits. And these chips can be any combination. It has been optimized to support Toshiba
and Samsung flash memory designs. It also supports Samsung’s K9F and K9W Series flash. The
controller has write-protected ability to prevent writing data to flash. The controller has a led control
pin. It has three operation modes: suspend (off), active (fast) and idle (twinkle) mode. For read/write
operation, the controller can achieve 1,000kB/920kB throughput. Comprehensive application with
Windows OS is available.
This controller can operate in Win XP, Win2000, Windows Me, and Mac OS without any driver
installation.
The OTi_6828 is available in cost-saving 32-pin TSOP package.
Features
• Flash controller with full-speed USB interface
• Integrated 5V/3.3V regulator, USB bus power supply capability
• USB Specification Compliance
— Conforms to USB Specification, Version 1.1
• Integrated USB transceiver
m— Dynamic feedback control
.co— Stable slew rate, independent of external loading
u• RISC micro-controller
t4— High-performance RISC architecture
ee— Single cycle instruction execution
www.datash• 14.318 MHz external clock
1 page  
OTi
Ours Technology Inc.
OTi-6828
FLASH DISK CONTROLLER
Pin Description
Pin Name
Attribute
Description
GPIO
I/O Reserved I/O
LED_OUT
O LED indication(open drain)
FL_R_B
I Flash Ready_Busy
FL_WE
O Flash Write Enable
FL_RE
O Flash Read Enable
FL_IO_7
I/O Flash data bus – bit 7
FL_IO_6
I/O Flash data bus – bit 6
FL_IO_5
I/O Flash data bus – bit 5
FL_IO_4
I/O Flash data bus – bit 4
FL_IO_3
I/O Flash data bus – bit 3
FL_IO_2
I/O Flash data bus – bit 2
FL_IO_1
I/O Flash data bus – bit 1
FL_IO_0
I/O Flash data bus – bit 0
FL_CLE
O Flash Command Latch Enable
FL_ALE
O Flash Address Latch Enable
SEL_RESET
I Selection of Internal Reset or External Reset
RESET_B
I Reset, active low
FL_WP
I/O Flash Write Protect
XTAL2
O Crystal output
XTAL1
I Crystal input (14.318MHz)
VDD
P 3.3V Output
VSS P GND
VDD5V
P 5V Input
VDD5V
P 5V Input
VSS P GND
VDD
P 3.3V Output
DPLS_IO
I/O USB D+
DMNS_IO
I/O USB D-
FL_CE0
O Flash Chip Enable – Chip 0
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
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19
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5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet OTI-6828.PDF ] | |
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