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LPC2102 Datasheet(PDF) 9 Page - NXP Semiconductors |
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LPC2102 Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 32 page LPC2101_02_03_1 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Preliminary data sheet Rev. 01 — 18 January 2006 9 of 32 Philips Semiconductors LPC2101/2102/2103 Single-chip 16-bit/32-bit microcontrollers [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. VSSA 31 34 I Analog ground: 0 V reference. This should be nominally the same voltage as VSS but should be isolated to minimize noise and error. VDDA 42 44 I 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. VDD(1V8) 510 I 1.8 V core power supply: This is the power supply voltage for internal circuitry. VDD(3V3) 17, 40 42 I 3.3 V pad power supply: This is the power supply voltage for the I/O ports. VBAT 4 n.c. I RTC power supply: 3.3 V on this pin supplies the power to the RTC. Table 3: Pin description …continued Symbol LQFP48 PLCC44 Type Description |
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