LPC2101 데이터 시트보기 (PDF) - Philips Electronics
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LPC2101 Datasheet PDF : 32 Pages
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Philips Semiconductors
LPC2101/2102/2103
Single-chip 16-bit/32-bit microcontrollers
Table 3:
Symbol
VSSA
Pin description …continued
LQFP48
PLCC44
31
34
Type
I
VDDA
42
44
I
VDD(1V8)
5
10
I
VDD(3V3)
17, 40
42
I
VBAT
4
n.c.
I
Description
Analog ground: 0 V reference. This should be nominally the
same voltage as VSS but should be isolated to minimize noise
and error.
Analog 3.3 V power supply: This should be nominally the
same voltage as VDD(3V3) but should be isolated to minimize
noise and error. This voltage is used to power the on-chip
PLL. This pin also provides a voltage reference level for the
ADC.
1.8 V core power supply: This is the power supply voltage for
internal circuitry.
3.3 V pad power supply: This is the power supply voltage for
the I/O ports.
RTC power supply: 3.3 V on this pin supplies the power to
the RTC.
[1] 5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control.
[2] 5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control. If configured for an input
function, this pad utilizes built-in glitch filter that blocks pulses shorter than 3 ns.
[3] Open-drain 5 V tolerant digital I/O I2C-bus 400 kHz specification compatible pad. It requires external pull-up to provide an output
functionality.
[4] 5 V tolerant pad providing digital I/O (with TTL levels and hysteresis and 10 ns slew rate control) and analog input function. If configured
for an input function, this pad utilizes built-in glitch filter that blocks pulses shorter than 3 ns. When configured as an ADC input, digital
section of the pad is disabled.
[5] Pad provides special analog functionality.
LPC2101_02_03_1
Preliminary data sheet
Rev. 01 — 18 January 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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