USB2514-HZH Standard Microsystems (SMSC), USB2514-HZH Datasheet - Page 59

• Manufacturer Part Number: USB2514-HZH
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2514-HZH

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Compliant

USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x
RESET_N
8.7.1.3
NAME
NAME
t5
t6
t7
t1
t2
t3
t4
t5
t6
t7
VSS
Hardware
asserted
reset
Host acknowledges attach and signals USB
Reset.
USB Idle.
Completion time for requests (with or without data
stage).
RESET_N Asserted.
Hub Recovery/Stabilization.
SMBus Code Load (See Note).
Hub Configuration and USB Attach.
Host acknowledges attach and signals USB
Reset.
USB Idle.
Completion time for requests (with or without data
stage).
Notes:
RESET_N for SMBus Slave Configuration
Notes:
When in bus-powered mode, the hub and its associated circuitry must not consume more than 100
mA from the upstream USB power source during t4+t5+t6+t7.
All power supplies must have reached the operating levels mandated in
prior to (or coincident with) the assertion of RESET_N.
For bus-powered configurations, the 99.5 ms (MAX) is required, and the hub and its associated
circuitry must not consume more than 100 mA from the upstream USB power source during
t1
Negation
Reset
Table 8.9 Reset_N Timing for EEPROM Mode (continued)
DESCRIPTION
DESCRIPTION
Figure 8.8 Reset_N Timing for SMBus Mode
Table 8.10 Reset_N Timing for SMBus Mode
SMBus Code
t2
Load
Stabilization
t3
DATASHEET
Hub PHY
59
t4
Upstream
Attach
USB
MIN
100
MIN
100
1
USB Reset
recovery
t5
Undefined
undefined
TYP
250
TYP
Chapter 9, DC
t6
Idle
MAX
MAX
500
300
100
Revision 1.1 (04-26-10)
5
5
t7
completion
response
Parameters,
request
Start
UNITS
UNITS
msec
msec
msec
msec
msec
msec
msec
msec
μsec
μsec