DP83848HSQ National Semiconductor, DP83848HSQ Datasheet - Page 62

• Manufacturer Part Number: DP83848HSQ
• Description: IC, TRANSCEIVER, ENET PHYTER, 40LLP
• Manufacturer: National Semiconductor

Specifications of DP83848HSQ

• Data Rate: 100Mbps
• No. Of Ports: 1
• Ethernet Type: IEEE 802.3u
• Supply Current: 92mA
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +125°C
• Digital Ic Case Style: LLP
• No. Of: RoHS Compliant
• Interface Type: MII Serial, RMII
• Rohs Compliant: Yes

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8.2.2 Reset Timing
Note: It is important to choose pull-up and/or pull-down resistors for each of the hardware configuration pins that provide
fast RC time constants in order to latch-in the proper value prior to the pin transitioning to an output driver.
T2.2.1
T2.2.2
T2.2.3
T2.2.4
Dual Function Pins
Become Enabled As Outputs
Parameter
Latch-In of Hardware
Configuration Pins
RESET_N
Hardware
X1 clock
Post RESET Stabilization time
prior to MDC preamble for reg-
ister accesses
Hardware Configuration Latch-
in Time from the Deassertion
of RESET (either soft or hard)
Hardware Configuration pins
transition to output drivers
RESET pulse width
MDC
Vcc
Description
MDIO is pulled high for 32-bit serial man-
agement initialization
Hardware Configuration Pins are de-
scribed in the Pin Description section
X1 Clock must be stable for at min. of 1us
during RESET pulse low time.
T2.2.4
62
T2.2.1
T2.2.2
Notes
input
T2.2.3
output
Min
1
32 clocks
Typ
50
3
3
Max
Units
ns
s
s
s