SL811HST Cypress Semiconductor Corp, SL811HST Datasheet - Page 22

• Manufacturer Part Number: SL811HST
• Manufacturer: Cypress Semiconductor Corp

Specifications of SL811HST

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Package Type: PLCC
• Rad Hardened: No
• Lead Free Status / Rohs Status: Not Compliant

4.2.3
The SL811HST-AC is packaged in a 48-pin TQFP. The device requires a 3.3VDC power source. The SL811HST-AC requires an
external 12 or 48 MHz crystal or Clock.
Table 4-2. SL811HST-AC Pin Assignments and Definitions
Document 38-08008 Rev. *B
Notes:
10. VDD can be derived from the USB supply. See diagram.
11. The X1/X2 Clock requires external 12- or 48-MHz matching crystal or clock source.
9.
Pin No.
The CM Clock Multiplier pin should be tied HIGH for a 12-MHz clock source and tied to ground for a 48-MHz clock source. In SL11H, this pin was designated
as ALE input pin.
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
11
1
2
3
4
5
6
7
8
9
SL811HST-AC USB Host Controller Pins Description
Pin Type
VDD1
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
BIDIR
GND
GND
GND
VDD
OUT
OUT
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
CLK/X1
DATA +
DATA -
INTRQ
nRST
nWR
GND
GND
nCS
CM
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
D0
D1
D2
D3
D4
D5
X2
NC
NC
Write Strobe Input. An active LOW input used with nCS to Write to
registers/data memory.
Active LOW SL811HST-AC Chip select. Used with nRD and nWr when
accessing SL811HT.
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.
NC
NC
NC
NC
NC
SL811HST-AC Device V
Clock or External Crystal X1 connection.
External Crystal X2 connection.
SL811HST-AC Device active low reset input.
Active HIGH Interrupt Request output to external controller.
SL811HST-AC Device Ground.
Data 0. Microprocessor Data/(Address) Bus.
NC
NC
NC
NC
NC
Data 1. Microprocessor Data/(Address) Bus.
Data 2. Microprocessor Data/(Address) Bus.
Data 3. Microprocessor Data/(Address) Bus.
SL811HST-AC Device Ground.
Data 4. Microprocessor Data/(Address) Bus.
Data 5. Microprocessor Data/(Address) Bus.
DD
Pin Description
Power.
DD1
[10]
may be connected to V
[11]
[9]
SL811HS
Page 22 of 32
DD
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