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PDF SN11085 Data sheet ( Hoja de datos )
| Número de pieza | SN11085 | |
| Descripción | SN11085 USB1.1 Flash memory Controller | |
| Fabricantes | SONiX Technology Company | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SN11085 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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SN11085
2002/12/01 ver 0.97
SN11085 USB1.1 Flash memory Controller
2002/12/01
ver 0.97
1 General Description
SN11085 is a high-performance integrated circuit to bridge USB 1.1 interface and Flash
memory. It provides a flexible and cost efficient single chip solution for external storage
applications that intend to utilize the convenience of USB. Several special features are
implemented for an efficient and low cost USB storage device solution. The embedded
translation table eliminates external SRAM cost. The Sonix proprietary randomization
algorithm effectively extends the lifetime of flash memory and ensures the product
robustness. Embedded real time ECC correction keeps the data integrity while maintains the
high data transfer rate.
The external serial EEPROM provides customized USB vendor ID, product ID, and string
flexibility. In addition, the EEPROM can contain a serial number which helps the system
manufacturers to track down every single device they made even the design and PID/VID are
all the same. SN11085 also provides in system programming (ISP) capability of the
EEPROM. Products can be assembled without programming the EEPROM in advance,
which saves both the production cost and time. Device and manufacturer’s string can be
saved in the flash instead of the external EEPROM for further total cost reduction.
The USB Mass Storage Class compliance capability of SN11085 makes it a truly
“plug-and-play” device without vendor drivers under Windows 2000/ME/XP and Mac OS
9/10. SN11085 provides PC boot up and data security function, which makes it an ideal
replacement for the legacy floppy disk.
With many of its advanced features and high performance, SN11085 is an ideal choice for
building a portable USB to flash storage system.
1
1 page  
SN11085
2002/12/01 ver 0.97
42 FLCE6
43 FLCE4
44 FLCE2
45 FLD4
46 FLD5
47 FLD3
48 VDD
DO 8mA
DO 8mA
DO 8mA
DIO 8mA PD
DIO 8mA PD
DIO 8mA PD
P- -
Flash memory chip enable 6
Flash memory chip enable 4
Flash memory chip enable 2
Flash memory I/O port bit 4
Flash memory I/O port bit 5
Flash memory I/O port bit 3
Digital 3.3V
Note:
1. P: power pin; AI: analog input pin, AIO: analog input/output pin; DI: digital input pin; DO: digital output pin;
DIO: digital input/output pin.
2. TTL: TTL compatible input pin; PD: pull down; PU: pull up.
3. All pads are Schmitt triggered and with slew rate control
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5 Page 
SN11085
2002/12/01 ver 0.97
VDI USB differential input sensitivity | (D+) – (D-) | 0.2 (min)
V
VCM USB differential common mode Included VDI 0.8 (min)
range
range
2.5 (max)
VSE USB single ended receiver
threshold
0.8 (min)
2.0 (max)
V
V
VIH high level input voltage
2.0 (min)
V
VIL low level input voltage
0.8 (max)
V
VOH high level output voltage
IOH = -4 mA 2.3 (min)
V
VOL low level output voltage
IOL= 4 mA 0.5 (max)
V
IIL low level input current
VI = 0 V
RSTN pin :
- 50.0 (max) µA
the other pins : - 3.0 (max)
IIH high level input current
VI = 3.6 V 3.0 (max)
µA
IDD input supply current
Isuspend supply current in suspend
20 (max)
20 (max)
mA
µA
6.4 AC electrical characteristics
6.4.1 USB transceiver signal (full speed mode)
Table 7
symbol
Tr
Tf
Trfm
Vo(crs)
parameter
test condition
transition rise time for DP or DM
transition fall time for DP or DM
rise / fall time matching
(Tr / Tf ) * 100
signal crossover voltage
min max unit
4 20 ns
4 20 ns
90 110 %
1.3 2.0 V
6.4.2 Operation clocks
Table 8
symbol
USBCLKin
parameter
XI/XOUT crystal value
USBCLKin duty cycle
value
6 (typ)
50 ± 2
unit
MHz
%
6.4.3 External EEPROM interface
Table 9
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet SN11085.PDF ] | |
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