LPC11A14FBD48/301, NXP Semiconductors, LPC11A14FBD48/301, Datasheet - Page 69

• Manufacturer Part Number: LPC11A14FBD48/301,
• Description: ARM Microcontrollers - MCU CortexM0 32bit 32KB
• Manufacturer: NXP Semiconductors

Specifications of LPC11A14FBD48/301,

• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: LPC11A
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.6 V to 3.6 V
• Package / Case: LQFP-48
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 250

NXP Semiconductors
LPC11AXX
Product data sheet
12.6 Reset pad configuration
12.7 UVLO protection and reset timer circuit
12.8 Guidelines for selecting a power supply filter for UVLO protection
For the UVLO circuits to hold the part in reset during shallow and deep brown-out
conditions, you must filter the power supply line to allow for the BOD and POR circuits to
settle when short voltage drops occur (see
Select the capacitance of the decoupling/bypass capacitor according to the following
guidelines:
C >> I
Fig 32. Reset pad configuration
Fig 33. Functional diagram of the UVLO protection and reset timer circuit
•
•
V
3.3 V
V
I
DD
EXT
V
DD
POR
DD(3V3)
INT
 3 mA with the IRC running and PLL/SysOsc off (see
reset
 t
s
/V
 100 mV for the voltage drop below the BOD or POR trip points.
All information provided in this document is subject to legal disclaimers.
DD(3V3)
REGULATOR
INTERNAL
Rev. 4 — 30 October 2012
with
GLITCH FILTER
V
20 ns RC
REF
V
EXT
V
1.8 V
INT
UVLO
BOD
POR
Section 10.1 “Power supply
R pu
V
V
INT
OR
32-bit ARM Cortex-M0 microcontroller
DD
V
DD
100 μs RESET
analog reset
TIMER
Figure
ESD
V
LPC11Axx
SS
12).
V
ESD
OR
DD
© NXP B.V. 2012. All rights reserved.
fluctuations”).
002aaf274
PIN
internal reset
002aah324
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