Datasheet

LPC2194_4 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet Rev. 04 — 11 September 2006 8 of 36
Philips Semiconductors
LPC2194
Single-chip 16/32-bit microcontroller
V
DDA(1V8)
63 I analog 1.8 V core power supply; this is the power supply voltage for internal
circuitry. This should be nominally the same voltage as V
DD(1V8)
but should be
isolated to minimize noise and error.
V
DD(3V3)
23, 43, 51 I 3.3 V pad power supply; this is the power supply voltage for the I/O ports
V
DDA(3V3)
7 I analog 3.3 V pad power supply; this should be nominally the same voltage as
V
DD(3V3)
but should be isolated to minimize noise and error
Table 2. Pin description
…continued
Symbol Pin Type Description