LPC2292_2294_7

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 7 — 4 December 2008

14 of 53

NXP Semiconductors

LPC2292/LPC2294

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]

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

Ω to 300 kΩ.

[8]

5 V tolerant pad providing digital input (with TTL levels and hysteresis) function only.

[9]

Pad provides special analog functionality.

143

A2

I

Analog 1.8 V core power supply: This is the power supply

voltage for internal circuitry. This should be nominally the

noise and error.

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.

14

F3

I

Analog 3.3 V pad power supply: This should be nominally

minimize noise and error.

Table 4.

Symbol

Pin (LQFP)

Pin

Type

Description