LPC47N227TQFP Standard Microsystems (SMSC), LPC47N227TQFP Datasheet - Page 11

• Manufacturer Part Number: LPC47N227TQFP
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47N227TQFP

• Lead Free Status / RoHS Status: Not Compliant

TQFP/STQFP
32-39, 40-47
7,31, 60,76
53,65,93
54-56,
57-59
PIN #
48,
49
50
51
52
64
19
18
6,
Note:
Note 1: Buffer types per function on multiplexed pins are separated by a slash “/”. Buffer types in
Note 2: The nLPCPD pin may be tied high.
Note 3: The FDD output pins multiplexed in the PARALLEL PORT INTERFACE are OD drivers only and
Note 4: Active (push-pull) output drivers are required on these pins in the enhanced parallel port modes.
General
Purpose I/O
(Note 9)
General
Purpose I/O
(System Option)
(Note 5)
(Note 9)
General
Purpose I/O/
System Mgt.
Interrupt
(Note 9)
General
Purpose I/O/
IRQ Input 1
(Note 9)
General
Purpose I/O/
IRQ Input 2
(Note 9)
General
Purpose I/O/
Floppy on
Parallel Port
(Note 9)
14MHz Clock
VCC (Note 6)
VTR (Note 6)
VSS
The "n" as the first letter of a symbol indicates an "Active Low" signal.
parenthesis represent multiple buffer types for a single pin function.
are not affected by the FDD Output Driver Controls (see subsection CR05 in the Configuration
section).
NAME
GP24,
GP30-GP37
GP40-GP47
GP10,
GP15-GP17,
GP20-GP22
GP11/
(SYSOPT)
GP12/
nIO_SMI
GP13/
IRQIN1
GP14/
IRQIN2
GP23/
FDC_PP
CLOCKI
VCC
VTR
VSS
SYMBOL
(I/O12/OD12)/
FUNCTION
(O12/OD12)
(I/O8/OD8)/
(I/O8/OD8)/
(I/O8/OD8)/
POWER PINS
TYPE PER
CLOCK PINS
(I/O8/OD8)
(I/O8/OD8)
BUFFER
IS
I
I
I
1
11
Dedicated General Purpose Input/Output.
General Purpose Input/Output.
At the trailing edge of hardware reset the GP11 pin
is latched to determine the configuration base
address: 0 = Index Base I/O Address 02E Hex; 1 =
Index Base I/O Address 04E Hex.
General Purpose Input/Output.
Active low System Management Interrupt Output.
General Purpose Input/Output.
External Interrupt Input. Steerable onto one of the
15 Serial IRQs.
General Purpose Input/Output.
External Interrupt Input. Steerable onto one of the
15 Serial IRQs.
General Purpose Input/Output.
Floppy on the Parallel Port Indication.
14.318MHz Clock Input.
+3.3 Volt Supply Voltage.
+3.3 Volt Standby Voltage.
Ground.
DESCRIPTION