SL811HS_07 CYPRESS [Cypress Semiconductor], SL811HS_07 Datasheet - Page 21

• Manufacturer Part Number: SL811HS_07
• Description: Embedded USB Host/Slave Controller
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document 38-08008 Rev. *D
48/28-Pin USB Host Controller Pins Description
The SL811HST-AXC is packaged in a 48-pin TQFP. The SL811HS and SL811HS-JCT packages are 28-pin PLCC’s. These
devices require a 3.3 VDC power source. The 48-Pin TQFP requires an external 12 or 48 MHz crystal or clock.
Table 35. 48/28-Pin TQFP AXC Pin Assignments and Definitions
48-Pin TQFP
Notes
AXC Pin No.
5. The CM Clock Multiplier pin must be tied HIGH for a 12 MHz clock source and tied to ground for a 48 MHz clock source.
6. The CM Clock Multiplier pin must be tied HIGH for a 12 MHz clock source and tied to ground for a 48 MHz clock source. In 28-pin PLCC’s, this pin is designated
7. VDD can be derived from the USB supply. See Figure 5 on page 19.
as an ALE input pin.
15
5
10
11
12
13
14
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
6
7
8
9
[5]
[7]
28-Pin PLCC
Pin No.
7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
–
–
5
6
8
9
–
–
–
–
–
–
–
–
–
–
[6]
Pin Type
VDD1
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
GND
VDD
OUT
OUT
GND
GND
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
IN
IN
IN
IN
IN
Pin Name
USB GND
+3.3 VDC
+3.3 VDC
DATA +
CLK/X1
DATA -
INTRQ
nRST
nWR
GND
GND
nCS
CM
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
X2
D0
D1
D2
D3
D4
D5
No connection.
No connection.
Write Strobe Input. An active LOW input used with nCS to write
to registers/data memory.
Active LOW 48-Pin TQFP Chip select. Used with nRD and nWr
when accessing the 48-Pin TQFP.
Clock Multiply. Select 12 MHz/48 MHz Clock Source.
Power for USB Transceivers. V
USB Differential Data Signal HIGH Side.
USB Differential Data Signal LOW Side.
Ground Connection for USB.
No connection.
No connection.
No connection.
No connection.
No connection.
Device V
Clock or External Crystal X1 connection. The X1/X2 Clock
requires external 12 or 48 MHz matching crystal or clock source.
External Crystal X2 connection.
Device active low reset input.
Active HIGH Interrupt Request output to external controller.
Device Ground.
Data 0. Microprocessor Data/Address Bus.
No connection.
No connection.
No connection.
No connection.
No connection.
Data 1. Microprocessor Data/Address Bus.
Data 2. Microprocessor Data/Address Bus.
Data 3. Microprocessor Data/Address Bus.
Device Ground.
Data 4. Microprocessor Data/Address Bus.
Data 5. Microprocessor Data/Address Bus.
DD
Power.
Pin Description
DD1
may be connected to V
SL811HS
Page 21 of 32
DD
.
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