CY7C65640A-LFC Cypress Semiconductor Corp, CY7C65640A-LFC Datasheet - Page 7

• Manufacturer Part Number: CY7C65640A-LFC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C65640A-LFC

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.15V
• Operating Supply Voltage (max): 3.45V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / RoHS Status: Not Compliant

Table 3. CY7C65640APin Assignments
Document #: 38-08019 Rev. *M
SPI INTERFACE
UPSTREAM PORT
Pin
11
15
19
23
27
33
39
45
55
12
16
20
24
28
34
40
47
50
56
21
22
46
26
25
48
49
17
18
3
7
4
8
BUSPOWER
SPI_SCK
RESET#
SPI_CS
SPI_SD
XOUT
Name
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
XIN
D–
D+
Output
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
I/O/Z
I/O/Z
I/O/Z
O
O
Default
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
O
O
Z
Z
Z
Description
V
V
V
V
V
V
V
V
V
V
V
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
GND. Connect to Ground with as short a path as possible.
24 MHz Crystal IN or External Clock Input.
24 MHz Crystal OUT.
Active LOW Reset. This pin resets the entire chip. It is normally tied to V
a 100K resistor, and to GND through a 0.1 µF capacitor. Other than this, no other
special power up procedure is required.
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 Chip Select. Connect to CS pin of the EEPROM.
SPI Clock. Connect to EEPROM SCK pin.
SPI Dataline Connect to GND with 15 KΩ resistor and to the Data I/O pins of the
EEPROM.
Upstream D– Signal.
Upstream D+ Signal.
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
. This signal provides power to the chip.
CY7C65640A
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