CY7C68300B-56LFXC Cypress Semiconductor Corp, CY7C68300B-56LFXC Datasheet - Page 15

• Manufacturer Part Number: CY7C68300B-56LFXC
• Description: IC USB 2.0 BRIDGE BULK 56VQFN
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C68300B-56LFXC

• Controller Type: USB 2.0 Controller
• Interface: I²C
• Voltage - Supply: 3.15 V ~ 3.45 V
• Current - Supply: 50mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-VQFN Exposed Pad, 56-HVQFN, 56-SQFN, 56-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.0
8.1
During the power-up sequence, the AT2LP checks the I
for an EEPROM and checks to see if the ATA connector is
configured for Board Manufacturing Test Mode. AT2LP then
selects an operating mode as shown below.
Document 38-08033 Rev. *D
• If an I
CY7C68300B/CY7C68301B uses the same pinout and EE-
PROM format as the CY7C68300A (EZ-USB AT2).
2
Operational Mode Selection Flow
C EEPROM with a 0x4D4D signature is found, the
Operating Modes
Read EEPROM
(CY7C68300A)
EZ-USB AT2+
ATA Enable
Pin HIGH?
ARESET#
EEPROM
EEPROM
Signature
0x4D4D?
Found?
Pinout
LOW?
Yes
Yes
Yes
Set
Figure 8-1. Operational Mode Selection
No
No
No
Yes
EZ-USB AT2LP
2
C port
EEPROM
Signature
0x534B?
Pinout
Yes
Set
No
Storage Mode
Normal Mass
There is an additional method available to put the AT2LP into
Board Manufacturing Test Mode to allow reprogramming of
• If the first two bytes of the EEPROM contain 0x534B the
• If no EEPROM is detected, the AT2LP uses a VID/PID of
• If an invalid EEPROM signature is read, the AT2LP defaults
AT2LP uses the values stored in the EEPROM to configure
the USB descriptors for normal operation.
0x00/0x00. This is not a valid mode of operation.
into Board Manufacturing Test Mode.
"No EEPROM Detected"
Board Manufacturing
CY7C68300B/CY7C68301B
Test Mode
CY7C68320/CY7C68321
Mode
No
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