Datasheet
LPC2292_2294 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 8 — 8 June 2011 14 of 54
NXP Semiconductors
LPC2292/2294
16/32-bit ARM microcontrollers with external memory interface
[1] LPC2294 only.
[2] 5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control.
[3] SSP interface available on LPC2292/2294/01 only.
[4] 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.
[5] Open-drain 5 V tolerant digital I/O I
2
C-bus 400 kHz specification compatible pad. It requires external pull-up to provide an output
functionality. Open-drain configuration applies to all output functions on this pin.
[6] 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 a digital 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.
[7] 5 V tolerant pad with built-in pull-up resistor providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control.
The pull-up resistor’s value ranges from 60 k to 300 k.
[8] 5 V tolerant pad providing digital input (with TTL levels and hysteresis) function only.
[9] Pad provides special analog functionality.
V
DDA(1V8)
143 A2 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)
2, 31, 39, 51,
57, 77, 94,
104, 112, 119
B1, K3, M3,
M6, N8, K10,
F12, C13,
A11, B9
I 3.3 V pad power supply: This is the power supply voltage for
the I/O ports.
V
DDA(3V3)
14 F3 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 4. Pin description
…continued
Symbol Pin (LQFP) Pin
(TFBGA)
[1]
Type Description