CY7C65640A TetraHub High Speed USB Hub Controller Datasheet.pdf

CY7C65640A
TetraHub™ High Speed USB
Hub Controller
TetraHub™ High Speed USB Hub Controller
Features
■
USB 2.0 Hub
■
Four Downstream Ports
■
Multiple Transaction Translators - One per Downstream Port
for Maximum Performance
■
VID, PID, and DID configured from External SPI EEPROM
■
24 MHz External Crystal
■
Small Package - Quad Flat Pack, No Leads (QFN)
■
Integrated Upstream Pull Up Resistor
■
Integrated Downstream
Downstream Ports
Pull
Down
Resistors
for
■
Integrated Upstream and Downstream Series Termination
Resistors
■
Configurable with External SPI EEPROM
❐ Number of Active Ports
❐ Number of Removable Ports
❐ Maximum Power
❐ Hub Controller Power
❐ Power On Timer
❐ Over current Timer
❐ Disable Over current Timer
❐ Enable Full Speed Only
❐ Disable Port Indicators
❐ Gang Power Switching
❐ Enable Single TT Mode Only
❐ Enable NoEOP at EOF1
all
.
Logic Block Diagram
D+
D–
24 MHz
Crystal
High speed
USB Control Logic
Serial
Interface
Engine
USB 2.0 PHY
PLL
SPI Communication
Block
USB Upstream
SPI_SCK
SPI_SD
SPI_CS
Transaction Translator (X4)
Hub Repeater
TT RAM
Routing Logic
USB
Downstream
USB Port Pow- Port
2.0 er Control Sta-
USB
Downstream
USB
USB Port Pow- Port
2.0 er Control Sta-
Downstream
USB Port Pow- Port
2.0 er Control Sta-
USB
Downstream
USB Port Pow- Port
2.0 er Control Sta-
D+ D– PWR#[1 OVR#[1LED D+ D– PWR#[2 OVR#[2LED D+ D– PWR#[3 OVR#[3LED D+ D– PWR#[4 OVR#[4LED
Cypress Semiconductor Corporation
Document Number: 38-08019 Rev. *P
•
198 Champion Court
•
San Jose, CA 95134-1709
•
408-943-2600
Revised November 10, 2014
CY7C65640A
Contents
Introduction ....................................................................... 3
TetraHub Architecture ................................................. 3
USB Serial Interface Engine (SIE) .............................. 3
Hub Controller ............................................................. 3
Hub Repeater .............................................................. 3
Transaction Translator ................................................ 3
Applications ...................................................................... 3
Functional Overview ........................................................ 4
System Initialization ..................................................... 4
Enumeration ................................................................ 4
Multiple Transaction Translator Support ..................... 4
Downstream Ports ....................................................... 4
Upstream Port ............................................................. 4
Power Switching .......................................................... 4
Over current Detection ................................................ 5
Port Indicators ............................................................. 5
Pin Configuration ............................................................. 6
Default Descriptors .......................................................... 9
Device Descriptor ........................................................ 9
Configuration Options ................................................... 12
Default – 0xD0 Load .................................................. 12
Configured – 0xD2 Load ........................................... 12
Document Number: 38-08019 Rev. *P
Supported USB Requests .............................................. 13
Device Class Commands .......................................... 13
Hub Class Commands .............................................. 14
Upstream USB Connection ............................................ 15
Downstream USB Connections ..................................... 16
LED Connections ............................................................ 16
Sample Schematic .......................................................... 17
Maximum Ratings ........................................................... 18
Operating Conditions ..................................................... 18
DC Electrical Characteristics ........................................ 18
AC Electrical Characteristics ........................................ 19
Ordering Information ...................................................... 20
Ordering Code Definitions ......................................... 20
Package Diagram ............................................................ 21
Quad Flat Package No Leads (QFN)
Package Design Notes ..................................................... 22
Document History Page ................................................. 24
Sales, Solutions, and Legal Information ...................... 26
Worldwide Sales and Design Support ....................... 26
Products .................................................................... 26
PSoC® Solutions ...................................................... 26
Cypress Developer Community ................................. 26
Technical Support ..................................................... 26
Page 2 of 26
CY7C65640A
Introduction
Cypress’s TetraHub is a high performance self powered
Universal Serial Bus (USB) 2.0 hub. The Tetra architecture
provides four downstream USB ports, with a Transaction
Translator (TT) for each port, making it the highest performing
hub possible. This single-chip device incorporates one upstream
and four downstream USB transceivers, a serial Interface
Engine (SIE), USB hub controller and repeater, and four TTs. It
is suitable for standalone hubs, motherboard hubs, and monitor
hub applications.
Being a fixed-function USB device, there is no risk or added
engineering effort required for firmware development. The
developer does not need to write any firmware for their design.
The CY4602 Tetrahub USB 2.0 4-port Hub Reference Design Kit
provides all materials and documents needed to move rapidly
into production. The reference design kit includes board
schematics, bill of materials, Gerber files, Orcad files, key
application notes, and product description.
CY7C65640A-LFXC is a functional and pin equivalent die
revision of Cypress’s CY7C65640-LFXC. Changes were made
to improve device performance.
TetraHub Architecture
The Logic Block Diagram on page 1 shows the TetraHub
Architecture.
USB Serial Interface Engine (SIE)
The SIE enables the CY7C65640A to communicate with the
USB host through the USB repeater component of the hub. The
SIE handles the following USB bus activity independently of the
Hub Control Block:
Hub Repeater
The hub repeater manages the connectivity between upstream
and downstream facing ports that are operating at the same
speed. It supports full/low speed connectivity and high speed
connectivity. According to USB 2.0 specification, the hub
repeater provides the following functions:
■
Sets up and tears down connectivity on packet boundaries
■
Ensures orderly entry into and out of the suspend state,
including proper handling of remote wake ups.
Transaction Translator
The TT translates data from one speed to another. A TT takes
high speed split transactions and translates them to full/low
speed transactions when the hub is operating at high speed (the
upstream port is connected to a high speed host controller) and
has full/low speed devices attached. The operating speed of a
device attached on a downstream facing port determines
whether the routing logic connects a port to the transaction
translator or hub repeater section. If a low or full speed device is
connected to the hub operating at high speed, the data transfer
route includes the transaction translator. If a high speed device
is connected to this high speed hub the route only includes the
repeater and no transaction translator; the device and the hub
are in conformation with respect to their data transfer speed.
When the hub is operating at full speed (the upstream port is
connected to a full speed host controller), a high speed
peripheral does not operate at its full capability. These devices
only work at 1.1 speed. Full and low speed devices connected to
this hub operate at their 1.1 speed.
Applications
■
Bit stuffing/unstuffing
■
Standalone Hubs
■
Checksum generation/checking
■
Motherboard Hubs
■
ACK/NAK/STALL
■
Monitor Hub applications
■
TOKEN type identification
■
External Personal Storage Drives
■
Address checking.
■
Port Replicators
Hub Controller
■
Portable Drive
The hub control block does the following protocol handling at a
higher level:
■
Docking Stations
■
Coordinate enumeration by responding to SETUP packets
■
Fill and empty the FIFOs
■
Suspend/Resume coordination
■
Verify and select DATA toggle values
■
Port power control and over current detection.
The Hub controller provides status and control and permits host
access to the hub.
Document Number: 38-08019 Rev. *P
Page 3 of 26
CY7C65640A
Functional Overview
The Cypress TetraHub USB 2.0 hub is a high performance,
low-system-cost solution for USB. This hub integrates 1.5k
upstream pull up resistors for full speed operation and all
downstream 15k pull down resistors and series termination
resistors on all upstream and downstream D+ and D– pins. This
results in optimization of system costs by providing built-in
support for the USB 2.0 specification.
System Initialization
On power up, the TetraHub reads an external SPI EEPROM for
configuration information. At the most basic level, this EEPROM
has the Vendor ID (VID), Product ID (PID), and Device ID (DID)
for the customer’s application. For more specialized
applications, other configuration options can be specified. See
Configuration Options on page 12 for more details.
After reading the EEPROM, if BUSPOWER (connected to the
upstream VBus) is high, TetraHub enables the pull up resistor on
the D+ to indicate that it is connected to the upstream hub, after
which a USB bus reset is expected. During this reset, TetraHub
initiates a chirp to indicate that it is a high speed peripheral. In a
USB 2.0 system, the upstream hub responds with a chirp
sequence, and TetraHub is in a high speed mode, with the
upstream D+ pull up resistor turned off. In USB 1.x systems, no
such chirp sequence from the upstream hub is seen, and
TetraHub operates as a normal 1.x hub (operating at full speed).
After the hub is configured, the ports are not driven, and the host
may power the ports by sending a SetPortPower command to
each port. After a port is powered, any connect or disconnect
event is detected by the hub. Any change in the port state is
reported by the hub back to the host through the Status Change
Endpoint (endpoint 1). Upon receipt of SetPortReset command
from the host, the hub does the following:
■
Drive SE0 on the corresponding port
■
Put the port in an enabled state
■
Enable the green port indicator for that port (if not previously
overridden by the host)
■
Enable babble detection after the port is enabled.
Babble consists of either non-terminated traffic from a
downstream port (or loss of activity), or a non-idle condition on
the port after EOF2. If babble is detected on an enabled port, that
port is disabled. A ClearPortEnable command from the host also
disables the specified port.
Downstream ports can be individually suspended by the host
with the SetPortSuspend command. If the hub is not suspended,
any resume will be confined to that individual port and reflected
to the host through a port change indication in the Hub Status
Change Endpoint. If the hub is suspended, a resume on this port
will be forwarded to the host, but other resume events will not be
seen on that port. The host may resume the port by sending a
ClearPortSuspend command.
Enumeration
Upstream Port
After a USB Bus Reset, TetraHub is in an unaddressed,
non-configured state (configuration value set to 0). During the
enumeration process, the host sets the hub’s address and
configuration by sending a SetCongfiguration request. Changing
the hub address restores it to an non-configured state.
The upstream port includes the transmitter and the receiver state
machine. The transmitter and receiver operate in high speed and
full speed depending on the current hub configuration.
For high speed multi-TT support, the host must also set the
alternate interface setting to 1 (the default mode is single TT).
After the hub is configured, the full hub functionality is available.
Multiple Transaction Translator Support
After TetraHub is configured in a high speed system, it is in single
TT mode. The host may then set the hub into multiple TT mode
by sending a SetInterface command. In multiple TT mode, each
full speed port is handled independently and thus has a full
12 Mbps bandwidth available. In Single TT mode, all traffic from
the host destined for full or low speed ports are forwarded to all
of those ports. This means that the 12 Mbps bandwidth is shared
by all full and low speed ports.
Downstream Ports
TetraHub supports a maximum of four downstream ports, each
of which may be marked as usable or removable in the extended
configuration (0xD2 EEPROM load, see section). Downstream
D+ and D– pull down resistors are incorporated in TetraHub for
each port. Prior to the hub being configured, the ports are driven
SE0 (Single Ended Zero, where both D+ and D– are driven low)
and are set to the non-powered state.
Document Number: 38-08019 Rev. *P
The transmitter state machine monitors the upstream facing port
while the hub repeater has connectivity in the upstream direction.
This monitoring activity prevents propagation of erroneous
indications in the upstream direction. In particular, this machine
prevents babble and disconnect events on the downstream
facing ports of this hub from propagating and causing the hub to
be disabled or disconnected by the hub to which it is attached.
This enables the hub to only disconnect the offensive port on
detecting a babble from it.
Power Switching
TetraHub includes interface signals for external port power
switches. Both ganged and individual (for each port)
configurations are supported, with individual switching being the
default. Initially all ports are non-powered. After enumerating, the
host may power each port by sending a SetPortPower command
for that port. The power switching and over current detection of
downstream ports is managed by control pins connected to an
external power switch device. PWR [n]# output pins of the
CY7C65640A series are connected to the respective external
power switch's port power enable signals. (Note that each port
power output pin of the external power switch must be bypassed
with an electrolytic or tantalum capacitor as required by the USB
specification. These capacitors supply the inrush currents, which
occur during downstream device hot-attach events.)
Page 4 of 26
CY7C65640A
Over current Detection
Over current detection includes timed detection of 8 ms by
default. This parameter is configured from the external EEPROM
in a range of 0 ms to 15 ms for both an enabled port and a
disabled port individually. Detection of over on downstream ports
is managed by control pins connected to an external power
switch device.
The OVR[n]# pins of the CY7C65640A series are connected to
the respective external power switch’s port over current
indication (output) signals. Upon detecting an over current
condition, the hub device reports the over current condition to the
host and disables the PWR# output to the external power device.
Port Indicators
The USB 2.0 port indicators are also supported directly by
TetraHub. According to the specification, each downstream port
of the hub supports an optional status indicator. The presence of
indicators for downstream facing ports is specified by bit 7 of the
wHubCharacteristics field of the hub class descriptor. The
default TetraHub descriptor specifies that port indicators are
supported (wHubCharacteristics, bit 7 is set). If port indicators
are not included in the hub, EEPROM should disable this.
Each port indicator is strategically located directly on the
opposite edge of the port which it is associated with. The
indicator provides two colors: green and amber. This is
implemented as two separate LEDs, one amber and the other
green. A combination of hardware and software control is used
to inform the user of the current status of the port or the device
attached to the port and to guide the user through problem
resolution. Colors and blinking are used to provide information to
the user. The significance of the color of the LED depends on the
operational mode of the TetraHub. There are two modes of
operation for the TetraHub port indicators: automatic and
manual.
On power up, the TetraHub defaults to automatic mode, where
the color of the port indicator (green, amber, off) indicates the
functional status of the TetraHub port. In automatic mode,
TetraHub turns on the green LED whenever the port is enabled
and the amber LED when it detects an over current condition.
The color of the port indicator is set by the port state machine.
Blinking of the LEDs is not supported in automatic mode. Table 1
identifies the mapping of color to port state in automatic mode.
In manual mode, the indicators are under the control of the host,
which can turn on one of the LEDs, or leave them off. This is done
by a system software USB Hub class request. Blinking of the
LEDs is supported in manual mode. The port indicators enable
the user to intervene on any error detection. For example, when
babble is detected on plugging in a defective device, or on
occurrence of an over current condition, the port indicators
corresponding to the downstream port blink green or only light
the amber LED, respectively. Table 2 displays the color definition
of the indicators when TetraHub is in manual mode.
Table 1. Automatic Port State to Port Indicator Color Mapping
Downstream Facing Hub Port State
Port
Switching
Powered Off
Disconnected, Disabled, Not Enabled, Transmit, Suspended, Resuming,
Configured, Resetting, Testing
or TransmitR
SendEOR, Restart_E/S
With
Off or amber if due to an over Off
current condition
Green
Off
Without
Off
Green
Off
Off or amber if due to an
overcurrent condition
Table 2. Port Indicator Color Definitions in Manual Mode
Color Definition
Port State
Off
Not operational
Amber
Error condition
Green
Fully operational
Blinking Off/Green
Software attention
Blinking Off/Amber
Hardware attention
Blinking Green/Amber
Reserved
Note. Information presented in Table 1 and Table 2 is from USB 2.0 specification tables 11-6 and 11-7, respectively.
Document Number: 38-08019 Rev. *P
Page 5 of 26
CY7C65640A
Pin Configuration
49
48
47
46
45
44
GREEN#[4]
AM BER #[4]
V CC
RE S ET
50
GND
51
SPI _SC K
52
SPI _ SD
GND
53
OVR #[4]
54
P WR# [4]
55
OVR#[ 3 ]
VCC
56
PWR# [3]
GND
Figure 1. 56-pin Quad Flat Pack No Leads (8 mm × 8 mm)
43
DD–[4] 1
42
AMBER#[3]
DD+[4] 2
41
GREEN#[3]
VCC 3
40
GND
GND 4
39 VCC
DD–[3] 5
38
AMBER#[2]
DD+[3] 6
37
GREEN#[2]
VCC 7
36
AMBER#[1]
GND 8
35
GREEN#[1]
DD–[2] 9
34 GND
DD+[2] 10
33
VCC
DD+[1] 14
29 PWR#[1]
Document Number: 38-08019 Rev. *P
20
21
22
23
24
25
S PI_CS
19
V CC
18
D+
17
D–
16
GND
V CC
15
26
27
28
GND
OVR#[1]
VC C
30
BUSPOWER
DD–[1] 13
GND
PWR#[2]
VCC
31
XOU T
GND 12
XI N
32 OVR#[2]
G ND
VCC 11
Page 6 of 26
CY7C65640A
Table 3. CY7C65640A Pin Assignments
Pin
Name
Type
Default
Description
3
VCC
Power
N/A
VCC. This signal provides power to the chip.
7
VCC
Power
N/A
VCC. This signal provides power to the chip.
11
VCC
Power
N/A
VCC. This signal provides power to the chip.
15
VCC
Power
N/A
VCC. This signal provides power to the chip.
19
VCC
Power
N/A
VCC. This signal provides power to the chip.
23
VCC
Power
N/A
VCC. This signal provides power to the chip.
27
VCC
Power
N/A
VCC. This signal provides power to the chip.
33
VCC
Power
N/A
VCC. This signal provides power to the chip.
39
VCC
Power
N/A
VCC. This signal provides power to the chip.
45
VCC
Power
N/A
VCC. This signal provides power to the chip.
55
VCC
Power
N/A
VCC. This signal provides power to the chip.
4
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
8
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
12
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
16
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
20
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
24
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
28
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
34
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
40
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
47
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
50
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
56
GND
Power
N/A
GND. Connect to Ground with as short a path as possible.
21
XIN
Input
N/A
24 MHz Crystal IN or External Clock Input.
22
XOUT
Output
N/A
24 MHz Crystal OUT.
46
RESET#
Input
N/A
Active LOW Reset. This pin resets the entire chip. It is normally tied to VCC through
a 100K resistor, and to GND through a 0.1 µF capacitor. Other than this, no other
special power up procedure is required.
26
BUSPOWER
Input
N/A
VBUS. Connect to the VBUS pin of the upstream connector. This signal indicates to
the hub that it is in a powered state, and may enable the D+ pull up resistor to indicate
a connection. (The hub does so after the external EEPROM is read, unless it is put
into a high speed mode by the upstream hub). The hub cannot be bus powered, and
the VBUS signal must not be used as a power source.
SPI INTERFACE
25
SPI_CS
O
O
SPI Chip Select. Connect to CS pin of the EEPROM.
48
SPI_SCK
O
O
SPI Clock. Connect to EEPROM SCK pin.
49
SPI_SD
I/O/Z
Z
SPI Dataline Connect to GND with 15 Kresistor and to the Data I/O pins of the
EEPROM.
UPSTREAM PORT
17
D–
I/O/Z
Z
Upstream D– Signal.
18
D+
I/O/Z
Z
Upstream D+ Signal.
Document Number: 38-08019 Rev. *P
Page 7 of 26
CY7C65640A
Table 3. CY7C65640A Pin Assignments (continued)
Pin
Name
Type
Default
Description
DOWNSTREAM PORT 1
13
DD–[1]
I/O/Z
Z
Downstream D– Signal.
14
DD+[1]
I/O/Z
Z
Downstream D+ Signal.
36
AMBER#[1]
O
1
LED. Driver output for amber LED. Port Indicator Support. Active LOW.
35
GREEN#[1]
O
1
LED. Driver output for green LED. Port Indicator Support. Active LOW.
30
OVR#[1]
Input
1
Overcurrent Condition Detection Input. Active LOW.
29
PWR#[1]
O/Z
Z
Power Switch Driver Output. Active LOW.
DD–[2]
I/O/Z
Z
Downstream D– Signal.
10
DD+[2]
I/O/Z
Z
Downstream D+ Signal.
38
AMBER#[2]
O
1
LED. Driver output for amber LED. Port Indicator Support. Active LOW.
37
GREEN#[2]
O
1
LED. Driver output for green LED. Port Indicator Support. Active LOW.
32
OVR#[2]
Input
1
Overcurrent Condition Detection Input. Active LOW.
31
PWR#[2]
O/Z
Z
Power Switch Driver Output. Active LOW.
DOWNSTREAM PORT 2
9
DOWNSTREAM PORT 3
5
DD–[3]
I/O/Z
Z
Downstream D– Signal.
6
DD+[3]
I/O/Z
Z
Downstream D+ Signal.
42
AMBER#[3]
O
1
LED. Driver output for Amber LED. Port Indicator Support. Active LOW.
41
GREEN#[3]
O
1
LED. Driver output for Green LED. Port Indicator Support. Active LOW.
53
OVR#[3]
Input
1
Overcurrent Condition Detection Input. Active LOW.
54
PWR#[3]
O/Z
Z
Power Switch Driver Output. Active LOW.
DOWNSTREAM PORT 4
1
DD–[4]
I/O/Z
Z
Downstream D– Signal.
2
DD+[4]
I/O/Z
Z
Downstream D+ Signal.
44
AMBER#[4]
O
1
LED. Driver output for Amber LED. Port Indicator Support. Active LOW.
43
GREEN#[4]
O
1
LED. Driver output for Green LED. Port Indicator Support. Active LOW.
51
OVR#[4]
Input
1
Overcurrent Condition Detection Input. Active LOW.
52
PWR#[4]
O/Z
Z
Power Switch Driver Output. Active LOW.
Unused port DD+/DD– lines can be left floating. The port power, amber, and green LED pins should be left unconnected, and the over current pin should be tied high. The
over current pin is an input and it should not be left floating.
Document Number: 38-08019 Rev. *P
Page 8 of 26
CY7C65640A
Default Descriptors
Device Descriptor
The standard device descriptor for TetraHub is based on the VID, PID, and DID found in the SPI EEPROM. This VID/PID/DID in the
EEPROM overwrites the default VID/PID/DID. If no EEPROM is used, the TetraHub enumerates with the following default descriptor
values.
Table 4. Tetra Hub Descriptor Values
Byte
Full Speed
High Speed
Field Name
Description
0
0x12
0x12
bLength
18 Bytes
1
0x01
0x01
bDescriptorType
DEVICE_DESCRIPTOR
2,3
0x0200
0x0200
bcdUSB
USB specification 2.0
4
0x09
0x09
bDeviceClass
HUB
5
0x00
0x00
bDeviceSubClass
None
6
0x00
0x02
bDeviceProtocol
None
7
0x40
0x40
bMaxPacketSize0
64 bytes
8,9
0x04B4
0xx04B4
wIdVendor
VID (overwritten by what is defined in EEPROM)
10,11
0x6560
0x6560
wIdProduct
PID (overwritten by what is defined in EEPROM)
12, 13
0x000B
0x000B
wbcdDevice
DID (overwritten by what is defined in EEPROM)
14
0x00
0x00
iManufacturer
No manufacturer string supported
15
0x00
0x00
iProduct
No product string supported
16
0x00
0x00
iSerialNumber
No serial string supported
17
0x01
0x01
bNumConfigurations
One configuration supported
Table 5. Configuration Descriptor
Byte
Full Speed
High Speed
Field Name
Description
0
0x09
0x09
bLength
9 Bytes
1
0x02
0x02
bDescriptorType
CONFIG_DESCRIPTOR
2
0x0019
0x0029[1]
wTotalLength
Length of all other descriptors
4
0x01
0x01
bNumInterfaces
1
5
0x01
0x01
bConfigurationValue
The configuration to be used
6
0x00
0x00
iConfiguration
7
0xE0
0xE0
bmAttributes
8
0x32
0x32[2]
bMaxPower
Table 6. Interface Descriptor
Byte
0
1
2
3
4
Full Speed
0x09
0x04
0x00
0x00
0x01
High Speed
0x09
0x04
0x00
0x00
0x01
Field Name
bLength
bDescriptorType
bInterfaceNumber
bAlternateSetting
bNumEndpoints
5
6
7
8
0x09
0x00
0x00
0x00
0x09
0x00
0x01
0x00
bInterfaceClass
bInterfaceSubClass
bInterfaceProtocol
iInterface
Description
9 Bytes
INTERFACE_DESCRIPTOR
Notes
1. This value is reported as 0x19 if the hub is configured in Single-TT mode.
2. This value is configured through the External EEPROM.
Document Number: 38-08019 Rev. *P
Page 9 of 26
CY7C65640A
Table 7. Endpoint Descriptor
Byte
Full Speed
High Speed
0
0x07
0x07
1
0x05
0x05
bDescriptorType
ENDPOINT_DESCRIPTOR
2
0x81
0x81
bEndpointAddress
IN Endpoint #1
3
0x03
0x03
4,5
0x0001
0x0001
6
0xFF
0x0C
Field Name
bLength
Description
7 Bytes
bmAttributes
Interrupt
wMaxPacketSize
Maximum packet size
bInterval
Polling rate
Table 8. Interface Descriptor[3]
I
Byte
Full Speed
0
N/A
0x09
bLength
9 Bytes
1
N/A
0x04
bDescriptorType
INTERFACE_DESCRIPTOR
2
N/A
0x00
bInterfaceNumber
Interface descriptor index
3
N/A
0x01
bAlternateSetting
Alternate setting for the interface
4
N/A
0x01
bNumEndpoints
Number of endpoints defined
5
N/A
0x09
bInterfaceClass
Interface class
6
N/A
0x00
bInterfaceSubClass
Interface sub-class
7
N/A
0x02
bInterfaceProtocol
Interface protocol
8
N/A
0x00
bInterface
Interface string index
Table 9. Endpoint
High Speed
Field Name
Description
Descriptor[3]
Byte
Full Speed
High Speed
Field Name
Description
0
N/A
0x07
bLength
7 Bytes
1
N/A
0x05
bDescriptorType
ENDPOINT_DESCRIPTOR
2
N/A
0x81
bEndpointAddress
IN Endpoint #1
3
N/A
0x03
bmAttributes
Interrupt
4,5
N/A
0x0001
wMaxPacketSize
Maximum packet size
6
N/A
0x0C
bInterval
Polling rate
Table 10. Device Qualifier Descriptor
Byte
Full Speed
High Speed
Field Name
Description
0
0x0A
0x0A
bLength
10 Bytes
1
0x06
0x06
bDescriptorType
DEVICE_QUALIFIER
2,3
0x0200
0x0200
4
0x09
0x09
bDeviceClass
5
0x00
0x00
bDeviceSubClass
6
0x02
0x00
bDeviceProtocol
7
0x40
0x40
bMaxPacketSize0
8
0x01
0x01
bNumConfigurations
9
0x00
0x00
bReserved
bcdUSB
Note
3. If TetraHub is configured for single-TT only (from the external EEPROM), this descriptor is not present.
Document Number: 38-08019 Rev. *P
Page 10 of 26
CY7C65640A
Table 11. Hub Descriptor
Byte
All Speeds
0
0x09
1
0x29
2
0x04[4]
3,4
0x0089[4]
5
Field Name
bLength
Description
9 Bytes
bDescriptorType
HUB descriptor
bNbrPorts
Number of ports supported
wHubCharacteristics
b1, b0: Logical Power Switching Mode
00: Ganged power switching (all ports’ power at once)
01: Individual port power switching (Default in TetraHub)
b2: Identifies a Compound Device,
0: Hub is not part of a compound device (Default in TetraHub),
1: Hub is part of a compound device.
b4, b3: Overcurrent protection mode
00: Global overcurrent protection. The hub reports overcurrent as a
summation of all ports current draw, without a breakdown of individual port
overcurrent status.
01: Individual port overcurrent protection. The hub reports overcurrent on
a per-port basis. Each port has an overcurrent status (Default in
TetraHub).
1X: No overcurrent protection. This option is enabled only for buspowered hubs that do not implement overcurrent protection.
b6, b5: TT Think Time
00: TT requires at most 8 FS bit times of inter transaction gap on a
full/low speed downstream bus (Default in TetraHub).
01: TT requires at most 16 FS bit times.
10: TT requires at most 24 FS bit times.
11: TT requires at most 32 FS bit times.
b7: Port indicators supported,
0: Port indicators are not supported on its downstream facing ports and
the PORT_INDICATOR request has no effect.
1: Port indicators are supported on its downstream facing ports and the
PORT_INDICATOR request controls the indicators.
b15...b8: Reserved
0x32[4]
bPwrOn2PwrGood
Time from when the port is powered to when the power is good on that port
6
0x64[4]
bHubContrCurrent
Maximum current requirement for the hub controller
7
0x00[4]
bDeviceRemovable
Indicates if the port has a removable device attached
8
0xFF[4]
bPortPwrCtrlMask
Required for compatibility with software written for 1.0 compliant devices
Note
4. This value is configured through the External EEPROM.
Document Number: 38-08019 Rev. *P
Page 11 of 26
CY7C65640A
Configuration Options
Byte 0: 0xD2
Systems using TetraHub must have an external EEPROM for the
device to have a unique VID, PID, and DID. The TetraHub can
talk to SPI EEPROM that are double byte addressable only.
TetraHub uses the command format from the '040 parts. The
TetraHub cannot talk to ‘080 EEPROM parts, as the read
command format used for talking to ‘080 is not the same as ‘040.
The '010s and '020s uses the same command format as used to
interface with the ‘040 and hence these can also be used to
interface with the TetraHub.
Default – 0xD0 Load
Needs to be programmed with 0xD2
Byte 1: VID (LSB)
Least Significant Byte of Vendor ID
Byte 2: VID (MSB)
Most Significant Byte of Vendor ID
Byte 3: PID (LSB)
Least Significant Byte of Product ID
Byte 4: PID (MSB)]
Most Significant Byte of Product ID
When used in default mode, only a unique VID, PID, and DID
must be present in the external SPI EEPROM. The contents of
the EEPROM must contain this information in the following
format:
Byte
Value
0
0xD0
1
VID (LSB)
2
VID (MSB)
3
PID (LSB)
4
PID (MSB)
5
DID (LSB)
6
DID (MSB)
Configured – 0xD2 Load
Byte
Value (MSB->LSB)
0
0xD2
1
VID (LSB)
2
VID (MSB)
3
PID (LSB)
4
PID (MSB)
5
DID (LSB)
6
DID (MSB)
7
EnableOverCurrentTimer[3:0], DisableOvercurrentTimer[3:0]
8
ActivePorts[3:0], RemovablePorts[3:0]
9
MaxPower
10
HubControllerPower
11
PowerOnTimer
12
IllegalHubDescriptor, Unused, FullspeedOnly,
NoPortIndicators, Reserved, GangPowered,
SingleTTOnly, NoEOPatEOF1
Byte 5: DID (LSB)
Least Significant Byte of Device ID
Byte 6: DID (MSB)]
Most Significant Byte of Device ID
Byte 7: EnableOvercurrentTimer[3:0], DisabledOvercurrentTimer[3:0]
Count time in ms for filtering over current detection. Bits 7–4
are for an enabled port, and bits 3–0 are for a disabled port.
Both range from 0 ms to 15 ms. See “Port Indicators” on
page 5. Default: 8 ms = 0x88.
Byte 8: ActivePorts[3:0], RemovablePorts[3:0]
Bits 7–4 are the ActivePorts[3:0] bits that indicates if the
corresponding port is usable. For example, a two-port hub
that uses ports 1 and 4 sets this field to 0x09. The total
number of ports reported in the hub descriptor: bNbrPorts
field is calculated from this. Bits 3–0 are the
RemovablePorts[3:0] bits that indicates whether the
corresponding port is removable (set to HIGH). This bit’s
values
are
recorded
appropriately
in
the
HubDescriptor:DeviceRemovable field. Default: 0xFF.
Byte 9: MaximumPower
This
value
is
reported
in
the
ConfigurationDescriptor:bMaxPower field and is the current
in 2 mA intervals that is required from the upstream hub.
Default: 0x32 = 100 mA
Byte 10: HubControllerPower
This
value
is
reported
in
the
HubDescriptor:bHubContrCurrent field and is the current in
milliamperes required by the hub controller. Default: 0x64 =
100 mA.
Byte 11: PowerOnTimer
This
value
is
reported
in
the
HubDescriptor:bPwrOn2PwrGood field and is the time in 2
ms intervals from the SetPortPower command until the power
on the corresponding downstream port is good. Default: 0x32
= 100 ms.
Byte 12: IllegalHubDescriptor, Unused, FullspeedOnly,
NoPortIndicators, Reserved, GangPowered, SingleTTOnly,
NoEOPatEOF1
Bit 7: IllegalHubDescriptor: For GetHubDescriptor request,
some USB hosts use a DescriptorTypeof 0x00 instead of
HUB_DESCRIPTOR, 0x29. According to the USB 2.0
standard, a hub must treat this as a Request Error, and stall
the transaction accordingly (USB 2.0, 11.24.2.5). For systems
Document Number: 38-08019 Rev. *P
Page 12 of 26
CY7C65640A
that do not accept this, the IllegalHubDescriptor configuration
bit may be set to enable TetraHub to accept a DescriptorType
of 0x00 for this command. Default is 0, recommended setting
is 1.
Bit 2: GangPowered: Indicates whether the port power
switching is ganged (set to 1) or per-port (set to 0). This is
reported in the HubDescriptor, wHubCharacteristics field, b4,
b3, b1, and b0. Default set to 0.
Bit 6: Unused: This bit is an unused, ‘don’t care’ bit and can
be set to anything.
Bit 1: SingleTTOnly: Indicates that the hub should only
support single transaction translator mode. This changes
various descriptor values. Default set to 0.
Bit 5: Fullspeed: Only configures the hub to be a full speed
only device. Default set to 0.
Bit 0: NoEOPatEOF1 turns off the EOP generation at EOF1
in full speed mode. Note that several USB 1.1 hosts cannot
handle EOPatEOF1 properly. Cypress recommends that this
option be turned off for general purpose hubs. Default is 0,
recommended setting is 1.
Bit 4: NoPortIndicators: Turns off the port indicators and does
not report them as present in the HubDescriptor,
wHubCharacteristics b7 field. Default set to 0.
Bit 3: Reserved: This bit is reserved and should not be set to
1. Must be set to 0.
Supported USB Requests
Device Class Commands
Table 12. Device Class Requests
Request
bmRequestType bRequest
wValue
wIndex
wLength
Data
GetDeviceStatus
10000000B
0x00
0x0000
0x0000
0x0002
2 Byte Device Status
GetInterfaceStatus
10000001B
0x00
0x0000
0x0000
0x0002
2 Byte Endpoint
Status
GetEndpointStatus
10000010B
0x00
0x0000
0x0000
0x0002
2 Byte Endpoint
Status
GetDeviceDescriptor
10000000B
0x06
0x0001
Zero or
Language ID
Descriptor Descriptor
Length
GetConfigDescriptor
10000000B
0x06
0x0002
Zero or
Language ID
Descriptor Descriptor
Length
GetDeviceQualifierDescriptor
10000000B
0x06
0x0006
Zero or
Language ID
Descriptor Descriptor
Length
GetOtherSpeedConfigurationDescriptor
10000000B
0x06
0x0007
Zero or
Language ID
Descriptor Descriptor
Length
GetConfiguration[5]
10000000B
0x08
0x0000
0x0000
0x0001
Configuration value
SetCongfiguration[5]
00000000B
0x09
Configuration
Value
0x0000
0x0000
None
GetInterface
10000001B
0xA
0x0000
0x0000
0x0001
Interface Number
SetInterface
00000001B
0x0B
Alternate
Setting
Interface
Number
0x0000
None
SetAddress
00000000B
0x05
Device Address 0x0000
0x0000
None
SetDeviceRemoteWakeup
00000000B
0x03
0x01
0x0000
0x0000
None
SetDeviceTest_J
00000000B
0x03
0x02
0x0100
0x0000
None
SetDeviceTest_K
00000000B
0x03
0x02
0x0200
0x0000
None
SetDeviceTest_SE0_NAK
00000000B
0x03
0x02
0x0300
0x0000
None
SetDeviceTest_Packet
00000000B
0x03
0x02
0x0400
0x0000
None
SetEndpointHalt
00000000B
0x03
0x00
0x0000
0x0000
None
ClearDeviceRemoteWakeup
00000000B
0x01
0x01
0x0000
0x0000
None
ClearEndpointHalt
00000000B
0x01
0x00
0x0000
0x0000
None
Note
5. Only one configuration is supported in TetraHub.
Document Number: 38-08019 Rev. *P
Page 13 of 26
CY7C65640A
Hub Class Commands
Table 13. Hub Class Requests
Request
bmRequestType bRequest
wValue
wIndex
wLength
Data
GetHubStatus
10100000B
0x00
0x0000
0x0000
0x0004
Hub Status (See Table 11-19
of Spec) Change Status (See
Table 11-20 of Spec)
GetPortStatus
10100011B
0x00
0x0000
Byte 0: 0x00 0x0004
Byte 1: Port
Port Status (See Table 11-21
of Spec) Change Status (See
Table 11-20 of Spec)
ClearHubFeature
00100000B
0x01
Feature Selectors[6]
0 or 1
0x0000
0x0000
None
ClearPortFeature
00100011B
0x01
Feature Selectors[6] Byte 0: 0x00 0x0000
1, 2, 8, 16, 17, 18, 19, Byte 1: Port
or 20
None
ClearPortFeature
00100011B
0x01
0x0000
Feature Selectors[6] Byte 0:
22
Selectors[7]
(PORT_INDICATOR) 0, 1, 2, or 3
Byte 1: Port
None
SetHubFeature
00100000B
0x03
Feature Selector[6]
0x0000
0x0000
TetraHub STALLs this
request
SetPortFeature
00100011B
0x03
Feature Selectors[6]
2, 4 or 8
Port
0x0000
None
SetPortFeature
00100011B
0x03
Feature Selector[6]
21
(PORT_TEST)
Byte 0:
0x0000
Selectors[8]
1,2, 3, 4 or 5
Byte 1: Port
None
SetPortFeature
00100011B
0x03
Byte 0:
0x0000
Feature Selector[6]
Selectors[7]
22
(PORT_INDICATOR) 0, 1, 2, or 3
Byte 1: Port
None
GetHubDescriptor
10100000B
0x06
Descriptor Type and
Descriptor Index
ClearTTBuffer
00100011B
0x08
Dev_Addr, EP_Num
TT_Port
0x0000
None
ResetTT
00100000B
0x09
0x0000
Byte 0: 0x00 0x0000
Byte 1: Port
None
GetTTState
10100011B
0X0A
TT_Flags
Byte 0: 0x00 TT State
Byte 1: Port Length
TT State
StopTT
00100011B
0x0B
0x0000
Byte 0: 0x00 0x0000
Byte 1: Port
None
Hub
Descriptor
Length
Notes
6. Feature selector values for different features are presented in Table 14.
7. Selector values for different features are presented in Table 16.
8. Selector values for different features are presented in Table 15.
Document Number: 38-08019 Rev. *P
Page 14 of 26
CY7C65640A
Table 14. Hub Class Feature Selector
Feature Selector
Table 15. Test Mode Selector for Feature Selector
PORT_TEST (0x21)
Recipient
Value
C_HUB_LOCAL_POWER
Hub
0
C_HUB_OVER_CURRENT
Hub
1
PORT_CONNECTION
Port
0
PORT_ENABLE
Port
1
PORT_SUSPEND
Port
2
PORT_RESET
Port
4
PORT_POWER
Port
8
PORT_LOW_SPEED
Port
9
C_PORT_CONNECTION
Port
16
C_PORT_ENABLE
Port
17
Port Indicator Color
C_PORT_SUSPEND
Port
18
C_PORT_OVER_CURRENT
Port
19
Color Set Automatically as
shown in Table 1
0
Automatic
Mode
C_PORT_RESET
Port
20
Amber
1
Manual Mode
PORT_TEST
Port
21
Green
2
Manual Mode
PORT_INDICATOR
Port
22
Off
3
Manual Mode
PORT_TEST Mode Description
Selector Value
Test_J
1
Test_K
2
Test_SE0_NAK
3
Test_Packet
4
Test_Force_Enable
5
Table 16. Port Indicator Selector for Feature Selector
PORT_INDICATOR (0x22)
Selector
Value
Port Indicator
Mode
Upstream USB Connection
The following is a schematic of the USB upstream connector.
Figure 2. USB Upstream Port Connection
BUSPOWER
VCC
D–
D–
D+
D+
2.2 F
10V
100 k
GND
SHELL
4.7 nF 250V
1 M
Document Number: 38-08019 Rev. *P
Page 15 of 26
CY7C65640A
Downstream USB Connections
The following is a schematic of the USB downstream connector.
Figure 3. USB Downstream Port Connection
VCC
PWRx
150 µF
10V
0.01 µF DD–[X]
D–
DD+[X]
D+
GND
SHELL
LED Connections
The following is a schematic of the LED circuitry.
Figure 4. USB Downstream Port Connection
GREEN#[x]
AMBER#[x]
Document Number: 38-08019 Rev. *P
680
3.3V
680
Page 16 of 26
CY7C65640A
Sample Schematic
Figure 5. Sample Schematic
5V
VCC
D–
D+
BUSPOWER
D+
2.2 F
10V
OVR1
PWR4
Power
PWR2 Management
OVR2
PWR3
100 k
GND
SHELL
PWR1
PWR1
D–
OVR3
PWR4
OVR4
4.7 nF 250V
PWR3
150 F
10V
DD–[1]
DD+[1]
0.01F
VCC
D–
D+
GND
SHELL
PWR2
PWR1
GREEN#[1]
1 M
AMBER#[1]
3.3V
680
680
SPI_SD
SPI_SCK
SPI
EEPROM
SPI_SD
SPI_CS
PWR2
150 F
10V
DD–[2]
DD+[2]
0.01F
VCC
D–
D+
GND
SHELL
24 MHz
3V
GREEN#[2]
27 pF
27 pF
3.3V
680
XOUT
XIN
VCC1
VCC2
VCC3
VCC4
VCC5
VCC6
VCC7
VCC8
VCC9
VCC10
VCC11
AMBER#[2]
680
BUSPOWER BUSPOWER
GREEN[1] GREEN[1]
AMBER[1] AMBER[1]
3.3V
150 F
10V
GREEN[2] GREEN[2]
AMBER[2] AMBER[2]
100K
D– DD+ D+
CY7C65640A-QFN
GREEN[4] GREEN[4]
AMBER[4] AMBER[4]
PWR1
OVR1
PWR2
OVR2
PWR3
OVR3
PWR4
OVR4
SPI_CS
DD–[1] DD-[1]
DD+[1] DD+[1]
DD–[2] DD-[2]
DD+[2] DD+[2]
DD–[3] DD-[3]
DD+[3] DD+[3]
DD–[4] DD-[4]
PWR1
OVR1
PWR2
OVR2
PWR3
OVR3
PWR4
OVR4
SPI_CS
DD-[3]
DD+[3]
0.01F
GREEN#[3]
AMBER#[3]
680
PWR4
150 F
10V
DD-[4]
DD+[4]
0.01F
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
GND9
GND10
GND11
GND12
VCC
D–
D+
GND
SHELL
SPI_SD SPI_SD
Document Number: 38-08019 Rev. *P
3.3 V
680
SPI_SCK SPI_SCK
DD+[4] DD+[4]
VCC
D–
D+
GND
SHELL
GREEN[3] GREEN[3]
AMBER[3] AMBER[3]
RESET
0.1F
PWR3
GREEN#[4]
AMBER#[4]
680
3.3 V
680
Page 17 of 26
CY7C65640A
Maximum Ratings
Operating Conditions
Storage Temperature ............................... –65 °C to +150 °C
TA (Ambient Temperature Under Bias) ........... 0 °C to +70 °C
Ambient Temperature
with Power Applied ......................................... 0 °C to +70 °C
Supply Voltage..........................................+3.15 V to +3.45 V
Supply Voltage to Ground Potential .............–0.5 V to +4.0 V
FOSC (Oscillator or Crystal Frequency)..... 24 MHz ± 0.05%,
parallel resonant, fundamental mode,
27 pF load capacitance, 0.5 mW
DC Voltage Applied to Outputs
in High Z State ..................................... –0.5 V to VCC + 0.5 V
Ground Voltage................................................................. 0 V
Power Dissipation (4 HS ports)..................................... 1.6 W
Static Discharge Voltage.......................................... > 2000 V
Maximum Output Sink Current per I/O ........................ 10 mA
DC Electrical Characteristics
Parameter
Description
VCC
Supply Voltage
VIH
Input High Voltage
VIL
Input Low Voltage
Conditions
Min
Typ
Max
Unit
3.15
3.3
3.45
V
2
–
5.25
V
–0.5
–
0.8
V
Il
Input Leakage Current
0 < VIN < VCC
–
–
±10
A
VOH
Output Voltage High
IOUT = 4 mA
2.4
–
–
V
VOL
Output Low Voltage
IOUT = –4 mA
–
–
0.4
V
IOH
Output Current High
–
–
4
mA
IOL
Output Current Low
–
–
4
mA
CIN
Input Pin Capacitance
–
–
10
pF
ISUSP
Suspend Current
–
100
–
A
Full speed Host, Full speed Devices
–
255
–
mA
High speed Host, High speed Devices
–
460
–
mA
ICC
Supply Current
4 Active ports
2 Active Ports
No Active Ports
High speed Host, Full speed Devices
–
395
–
mA
Full speed Host, Full speed Devices
–
255
–
mA
High speed Host, High speed Devices
–
415
–
mA
High speed Host, Full speed Devices
–
380
–
mA
Full speed Host
–
255
–
mA
High speed Host
–
370
–
mA
41
45
49

USB Transceiver
ZHSDRV
Driver Output Resistance
Ii
Input Leakage Current
–
±0.1
±5
A
IOZ
Three-state Output OFF-State Current
–
–
±10
A
VHSRS
High speed Receiver Sensitivity Level
210
–
–
mV
Trfi
Full speed Frame Jitter
–
–
133
ns
23.27
–
–
°C/W
Thermal Resistance
TJA
Theta Thermal Coefficient Junction to
Ambient
Document Number: 38-08019 Rev. *P
E-Pad configuration in section
at zero airflow
Page 18 of 26
CY7C65640A
AC Electrical Characteristics
Both the upstream USB transceiver and all four downstream transceivers have passed the USB-IF USB 2.0 Electrical Certification
Testing.
Table 17. Serial Peripheral Interface
Parameter
Description
Conditions
Min
Typ
Max
Unit
Clock Rise/Fall Time
–
–
500
ns
Clock Frequency
–
–
250
kHz
Data Setup Time
50
–
–
ns
Hold Time
100
–
–
ns
Reset period
1.9
–
–
ms
Figure 6. Eye Diagram
Document Number: 38-08019 Rev. *P
Page 19 of 26
CY7C65640A
Ordering Information
Ordering Code
CY7C65640A-LTXCKM
CY7C65640A-LTXC
CY7C65640A-LTXCT
CY4602
Package Type
56-pin QFN Sawn type Pb-free Package
56-pin QFN Sawn type Pb-free Package
56-pin QFN Sawn type Pb-free Package
TetraHub USB 2.0 4 port Hub Reference Design Kit
Ordering Code Definitions
CY 7 C 65 XXXX - XXX X
T
T = Tape and Reel
Temperature Range: X = C
C = Commercial
Package Type: XXX = LTX
LTX = 56-pin QFN (Pb-free)
Part Number: XXXX = 640A
Family Code: 65 = USB
Technology Code: C = CMOS
Marketing Code: 7 = Cypress Products
Company ID: CY = Cypress
Document Number: 38-08019 Rev. *P
Page 20 of 26
CY7C65640A
Package Diagram
The TetraHub is available in a space-saving 56-pin QFN (8 × 8 mm)
Figure 7. 56-pin QFN 8 × 8 mm
SOLDERABLE
EXPOSED
PAD
51-85144 *I
Document Number: 38-08019 Rev. *P
Page 21 of 26
CY7C65640A
Figure 8. 56-pin Sawn QFN (8 × 8 × 1.0 mm)
51-85187 *F
Note. The bottom metal pad size varies by product due to die
size variable. If metal pad design or dimension are critical with
your board designs, contact a Cypress Sales office to get the
specific outline option.
Quad Flat Package No Leads (QFN) Package Design
Notes
The QFN (Quad Flatpack No Leads), being a lead free package,
the electrical contact of the part to the printed circuit board (PCB)
is made by soldering the lands on the bottom surface of the
package to the PCB. Hence special attention is required for the
heat transfer area below the package to provide a good thermal
bond to the circuit board. A Copper (Cu) fill should be designed
into the PCB as a thermal pad under the package. Heat is transferred from the TetraHub through the device’s metal paddle on
the bottom side of the package. Heat from here is conducted to
the PCB at the thermal pad. It is then conducted from the thermal
pad to the PCB inner ground plane by a 5 × 5 array of via. A via
is a plated through-hole in the PCB with a finished diameter of
13 mil. The QFN’s metal die paddle must be soldered to the
PCB’s thermal pad. Solder mask is placed on the board top side
over each via to resist solder flow into the via. The mask on the
top side also minimizes outgassing during the solder reflow
process.
Document Number: 38-08019 Rev. *P
Follow the layout guidelines provided in the PCB layout files
accompanied with the CY4602 TetraHub Reference Design Kit.
The information in this section was derived from the original
application note by the package vendor. For further information
on this package design, refer to the application note on Surface
Mount Assembly of Amkor’s MicroLeadFrame (MLF)
Technology. You can find this on Amkor’s website at this URL:
http://www.amkor.com/products/notes_papers/MLF_AppNote.
This application note provides detailed information on board
mounting guidelines, soldering flow, rework process, and so on.
Figure 9 on page 23 displays a cross-sectional area underneath
the package. The cross section is of only one via. The solder
paste template needs to be designed to enable at least
50 percent solder coverage. The thickness of the solder paste
template should be 5 mil. It is recommended that ‘No Clean’, type
3 solder paste is used for mounting the part. Nitrogen purge is
recommended during reflow.
Page 22 of 26
CY7C65640A
Figure 9. Cross section of Area Below the QFN Package
0.017” dia
Solder Mask
Cu Fill
Cu Fill
PCB Material
Via hole for thermally connecting the
QFN to the circuit board ground plane.
0.013” dia
PCB Material
This figure only shows the top three layers of the
circuit board: Top Solder, PCB Dielectric, and
the Ground Plane.
Figure 10 is a plot of the solder mask pattern and Figure 11 displays an X-Ray image of the assembly (darker areas indicate solder).
Figure 10. Plot of the Solder Mask (White Area)
Document Number: 38-08019 Rev. *P
Figure 11. X-Ray Image of the Assembly
Page 23 of 26
CY7C65640A
Document History Page
Document Title: CY7C65640A, TetraHub™ High Speed USB Hub Controller
Document Number: 38-08019
Revision
ECN
Orig. of
Change
Submission
Date
**
113506
BHA
04/25/02
New data sheet (Preliminary)
*A
116812
MON
08/15/02
Supply voltage range changed from 3.3V–3.6V to 3.15V–3.45
Added EPROM types that can be used with HX2 (p. 14)
Added description of bit 7 of Byte 12 (Illegal Hub Descriptor) D2 Load (p. 15)
Added high speed sensitivity level of receiver (p. 20)
Added QFN package design notes (section 16.1)
*B
118518
MON
10/31/02
Fixed the Spec field in the Default Device Descriptor section 7.1
Fixed Interface Protocol field of the interface descriptor, section 7.3
Fixed Device Protocol field of the interface descriptor, section 7.7
Modified table 9-2, section 9.2
Added table 9-4, 9-5, section 9.2
Added table 4-1, 4-2, section 4.8
Added information on bits in wHubCharacterestics, section 7.8
Modified figure 16-1 in QFN package design notes, section 16.1
Included the eye diagram, section 14.4.2
Preliminary to Final
*C
121793
MON
12/09/02
Fixed the SPI clock Frequency to 250 KHz, section 14.4.1
Added information on the configuration of unused port pins, section 6.0
Added statement that no special power up procedure is required, section 6.0
*D
125275
MON
04/02/03
Changed the name of Bit 3 of Byte 12 of EEPROM for a 0xD2 load (section
8.2) from BusPowered to Reserved.
Removed all indication to the misconception that the hub can support bus
power.
Added information as to which nibble of byte 8 in the EEPROM defines the
active ports and which nibble defines the removable ports, section 8.2.
Added further information on the BUSPOWER pin (pin 26) functionality in
section 6.0.
*E
234272
MON
see ECN
Added part number for the lead free package (CY7C65640-LFXC), section
15.0
Changed the name of Bit 6 of Byte 12 of EEPROM for a 0xD2 load from
CompoundDevice to Unused, section 8.2.
Description of Change
*F
285171
KKU
see ECN
Changed CY7C65640 to CY7C65640A and reformatted to new format
*G
308296
KKU
see ECN
Added reset period under AC characteristics.
Removed compound device from features list.
Updated section 7.1 DID from 0x0007 to 0x000B for rev E silicon.
*H
390258
KKU
see ECN
Added theta thermal coefficient junction to ambient (TJA) to section 14.3
*I
522224
TEH
see ECN
Corrected typo in table 6-1. Changed downstream port 4 signal labels from [3]
to [4]. Updated package diagram. Updated to new template.
*J
2657415
DPT /
PYRS
02/10/09
Added package diagram spec 51-85187, updated package diagram spec
51-85144 and updated Ordering Information table
*K
2742387
DPT
07/22/09
Updated 56 QFN (sawn) package drawing
*L
2766203
DPT
09/18/09
Updated 56-Pin Sawn QFN package (FIgure 8)
*M
2825358
RSKV /
PYRS
12/10/09
Added Contents. Added ‘Pb-free Package‘ for Sawn parts in the Ordering
Information table.
*N
3149016
ODC
01/20/2011
Document Number: 38-08019 Rev. *P
Updated Operating Conditions.
Updated Ordering Information and added Ordering Code Definitions.
Updated to new template.
Page 24 of 26
CY7C65640A
Document History Page (continued)
Document Title: CY7C65640A, TetraHub™ High Speed USB Hub Controller
Document Number: 38-08019
Revision
ECN
Orig. of
Change
Submission
Date
*O
3404993
AASI
10/13/2011
Moving tetrahub (CY7C65640A) to NRND.
Adding watermark “Not recommended for new designs” on all pages of the
datasheet.
*P
4566232
PRJI
11/10/2014
Updated Package Diagram:
spec 51-85187 – Changed revision from *E to *F.
Description of Change
Updated to new template.
Completing Sunset Review.
Document Number: 38-08019 Rev. *P
Page 25 of 26
CY7C65640A
Sales, Solutions, and Legal Information
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closest to you, visit us at Cypress Locations.
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cypress.com/go/memory
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psoc.cypress.com/solutions
cypress.com/go/USB
cypress.com/go/wireless
© Cypress Semiconductor Corporation, 2002-2014. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of
any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for
medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as
critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems
application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,
and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document Number: 38-08019 Rev. *P
Revised November 10, 2014
Page 26 of 26
PSoC Designer™ and TetraHub™ are trademarks and PSoC® is a registered trademark of Cypress Semiconductor Corp. All products and company names mentioned in this document may be the
trademarks of their respective holders.
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