KSZ8851-16MLL TR Micrel Inc, KSZ8851-16MLL TR Datasheet - Page 13

• Manufacturer Part Number: KSZ8851-16MLL TR
• Description: Single Ethernet Port + Generic (16-bit) Bus Interface( )
• Manufacturer: Micrel Inc

Specifications of KSZ8851-16MLL TR

• Operating Supply Voltage (typ): 3.3V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Compliant

Legend:
P = Power supply
I/O = Bi-directional I = Input O = Output.
Ipd = Input with internal pull-down (58K ±30%).
Ipu = Input with internal pull-up (58K ±30%).
Opd = Output with internal pull-down (58K ±30%).
Opu = Output with internal pull-up (58K ±30%).
Ipu/O = Input with internal pull-up (58K ±30%) during power-up/reset; output pin otherwise.
Ipd/O = Input with internal pull-down (58K ±30%) during power-up/reset; output pin otherwise.
I/O (pd) = Input/Output with internal pull-down (58K ±30%).
Strapping Options
Note: Ipu/O = Input with internal pull-up (58K ±30%) during power-up/reset; output pin otherwise.
August 2009
Micrel, Inc.
Pin Number
Pin Number
Ipd/O = Input with internal pull-down (58K ±30%) during power-up/reset; output pin otherwise.
Pin strap-ins are latched during power-up or reset.
38
39
40
41
42
43
44
45
46
47
48
10
1
9
Gnd = Ground
Pin Name
Pin Name
P1LED1
VDD_IO
VDD_IO
EED_IO
EESK
SD8
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
I/O (pd)
I/O (pd)
I/O (pd)
I/O (pd)
I/O (pd)
I/O (pd)
I/O (pd)
I/O (pd)
I/O (pd)
Ipu/O
Ipd/O
Ipd/O
Type
Type
P
P
Pin Function
3.3V, 2.5V or 1.8V digital VDD input power supply for IO with well decoupling capacitors.
Shared Data Bus bit 8. Data D8 access when CMD=0. Don’t care when CMD=1. This pin
must be tied to GND in 8-bit bus mode.
Shared Data Bus bit 7. Data D7 access when CMD=0. Address A7 access when CMD=1.
Shared Data Bus bit 6. Data D6 access when CMD=0. Address A6 access when CMD=1.
Shared Data Bus bit 5. Data D5 access when CMD=0. Address A5 access when CMD=1.
Shared Data Bus bit 4. Data D4 access when CMD=0. Address A4 access when CMD=1.
Shared Data Bus bit 3. Data D3 access when CMD=0. Address A3 access when CMD=1.
Shared Data Bus bit 2. Data D2 access when CMD=0. Address A2 access when CMD=1.
3.3V, 2.5V or 1.8V digital VDD input power supply for IO with well decoupling capacitors.
Shared Data Bus bit 1. Data D1 access when CMD=0. In 8-bit mode, this is address A1
access when CMD=1. In 16-bit mode, this is “Don’t care” when CMD=1.
Shared Data Bus bit 0. Data D0 access when CMD=0. In 8-bit mode, this is address A0
access when CMD=1. In 16-bit mode, this is “Don’t care” when CMD=1.
8 or 16-bit bus mode select during power-up / reset:
NC or Pull-up (default ) = 16-bit bus
Pull-down = 8-bit bus
This pin value is also latched into register CCR, bit 6/7.
EEPROM select during power-up / reset:
Pull-up = EEPROM present
NC or Pull-down (default ) = EEPROM not present
This pin value is latched into register CCR, bit 9.
Endian mode select during power-up / reset:
Pull-up = Big Endian
NC or Pull-down (default) = Little Endian
This pin value is latched into register CCR, bit 10.
When this pin is no connect or tied to GND, the bit 11 (Endian mode selection) in
RXFDPR register can be used to program either Little (bit11=0 default) Endian mode or
Big (bit11=1) Endian mode.
13
Pin Function
KSZ8851-16MLL/MLLI
M9999-083109-2.0