LPC47M112 Datasheet, PDF (180/208 Pages) SMSC Corporation – ENHANCED SUPER I/O CONTROLLER WITH LPC INTERFACE

Enhanced Super I/O Controller with LPC Interface
Datasheet
PARAMETER
SYMBOL MIN TYP
Backdrive
I_IL
Protect/ChiProtect
(All pins excluding LAD[3:0],
nLDRQ, nLPCPD, nLFRAME)
5V Tolerant Pins
I_IL
(All pins excluding LAD[3:0],
nLDRQ, nLPCPD, nLFRAME)
Inputs and Outputs in High
Impedance State
LPC Bus Pins
I_IL
(LAD[3:0], nLDRQ, nLPCPD,
nLFRAME)
V_CC Supply Current Active
I_CCI
Trickle Supply Voltage
V_TR Supply Current Active
V_TR
V_CC
min
-.5V
I_TRI
0.25^3,5
Reference Voltage
V_REF Supply Current Active
V_REF
I_RFI
MAX
± 10
± 10
± 10
15³
V_CC
max
10^3,4
5.5
1³
UNITS
COMMENTS
µA V_CC = 0V
V_IN = 5.5V Max
µA V_CC = 3.3V
V_IN = 5.5V Max
µA V_CC = 0V and
V_CC = 3.3V
V_IN = 3.6V Max
mA All outputs open, all
inputs at a fixed
state (i.e., 0V or
3.3V).
V V_CC must not be
greater than .5V
above V_TR
mA All outputs open, all
inputs at a fixed
state (i.e., 0V or
3.3V).
V V_REF can be either
3.3V (nominal) or
5V (nominal)
mA All outputs open, all
inputs at a fixed
state (i.e., 0V or
3.3V).
Note 1: All output leakage’s are measured with all pins in high impedance.
Note 2: Output leakage is measured with the low driving output off, either for a high level output or a high impedance
state.
Note 3: Contact SMSC for the latest values.
Note 4: Max I_TRI with V_CC = 3.3V (nominal) and CIR ‘on’ is 10 mA.
Note 5: Min I_TRI with V_CC = 0 and CIR ‘off’ is 250 µA.
CAPACITANCE T_A = 25°C; fc = 1MHz; V_CC = 3.3V ±10%
LIMITS
PARAMETER
SYMBOL MIN TYP
Clock Input Capacitance
C_IN
Input Capacitance
C_IN
Output Capacitance
C_OUT
MAX
20
10
20
UNIT
pF
pF
pF
TEST CONDITION
All pins except pin
under test tied to
AC ground
SMSC DS – LPC47M112
Page 180
Rev. 02/02/2005