USB2228-NU-09 Standard Microsystems (SMSC), USB2228-NU-09 Datasheet - Page 11

• Manufacturer Part Number: USB2228-NU-09
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2228-NU-09

• Lead Free Status / RoHS Status: Compliant

Revision 1.93 (11-01-07)
CF_nRESET
CF_IORDY
CF_D[7:0]
CF_nCD2
CF_nCD1
CF_nIOW
SYMBOL
CF_nIOR
SM_nWP
SM_ALE
SM_CLE
128-PIN
VTQFP
39
38
37
36
35
34
33
32
56
54
53
59
57
58
74
73
75
BUFFER
I/O8PD
TYPE
O8PD
O8PD
O8PD
IPU
IPU
IPU
O8
O8
O8
4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs
SmartMedia INTERFACE
DATASHEET
CF Data 7-0:
The bi-directional data signals CF_D7-CF_D0 in the True IDE
mode data transfer.
In the True IDE Mode, all of task file register operation occur on
the CF_D[7:0], while the data transfer is on CF_D[15:0].
The bi-directional data signal has an internal weak pull-down
resistor.
IO Ready:
This pin is active high input signal.
This pin has an internally controlled weak pull-up resistor.
CF Card Detection2:
This card detection pin is connected to the ground on the CF
device, when the CF device is inserted.
This pin has an internally controlled weak pull-up resistor.
CF Card Detection1:
This card detection pin is connected to ground on the CF
device, when the CF device is inserted.
This pin has an internally controlled weak pull-up resistor.
CF Hardware Reset:
This pin is an active low hardware reset signal to CF device.
CF IO Read:
This pin is an active low read strobe signal for CF device.
CF IO Write Strobe:
This pin is an active low write strobe signal for CF device.
SM Write Protect:
This pin is an active low write protect signal for the SM device.
This pin has a weak pull-down resistor that is permanently
enabled.
SM Address Strobe:
This pin is an active high Address Latch Enable signal for the
SM device.
This pin has a weak pull-down resistor that is permanently
enabled.
SM Command Strobe:
This pin is an active high Command Latch Enable signal for the
SM device.
This pin has a weak pull-down resistor that is permanently
enabled.
11
DESCRIPTION
SMSC USB2227/USB2228
Datasheet