LPC2157FBD100,551 NXP Semiconductors, LPC2157FBD100,551 Datasheet - Page 22
![IC ARM7 MCU FLASH 512K 100LQFP](/photos/6/65/66516/568-100-lqfp_sot407-1_sml.jpg)
LPC2157FBD100,551
Manufacturer Part Number
LPC2157FBD100,551
Description
IC ARM7 MCU FLASH 512K 100LQFP
Manufacturer
NXP Semiconductors
Series
LPC2100r
Datasheet
1.LPC2157FBD100551.pdf
(45 pages)
Specifications of LPC2157FBD100,551
Program Memory Type
FLASH
Program Memory Size
512KB (512K x 8)
Package / Case
100-LQFP
Core Processor
ARM7
Core Size
16/32-Bit
Speed
60MHz
Connectivity
I²C, Microwire, SPI, SSI, SSP, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
38
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC21
Core
ARM7TDMI-S
Data Bus Width
16 bit, 32 bit
Data Ram Size
40 KB
Interface Type
I2C/SPI
Maximum Clock Frequency
60 MHz
Number Of Programmable I/os
38
Number Of Timers
2
Operating Supply Voltage
2.4 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
568-4310 - EVAL BOARD LPC2158 W/LCD568-4297 - BOARD EVAL LPC21XX MCB2100622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4524
935287348551
935287348551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2157FBD100,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
NXP Semiconductors
LPC2157_2158_1
Product data sheet
6.16.1 Features
6.17.1 Features
6.16 Watchdog timer
6.17 Real-time clock
6.18 Pulse width modulator
The purpose of the watchdog is to reset the microcontroller within a reasonable amount of
time if it enters an erroneous state. When enabled, the watchdog will generate a system
reset if the user program fails to ‘feed’ (or reload) the watchdog within a predetermined
amount of time.
The RTC is designed to provide a set of counters to measure time when normal or idle
operating mode is selected. The RTC has been designed to use little power, making it
suitable for battery powered systems where the CPU is not running continuously (Idle
mode).
The PWM is based on the standard timer block and inherits all of its features, although
only the PWM function is pinned out on the LPC2157/2158. The timer is designed to count
cycles of the peripheral clock (PCLK) and optionally generate interrupts or perform other
actions when specified timer values occur, based on seven match registers. The PWM
function is also based on match register events.
The ability to separately control rising and falling edge locations allows the PWM to be
used for more applications. For instance, multi-phase motor control typically requires three
non-overlapping PWM outputs with individual control of all three pulse widths and
positions.
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Internally resets chip if not periodically reloaded.
Debug mode.
Enabled by software but requires a hardware reset or a watchdog reset/interrupt to be
disabled.
Incorrect/Incomplete feed sequence causes reset/interrupt if enabled.
Flag to indicate watchdog reset.
Programmable 32-bit timer with internal prescaler.
Selectable time period from (T
T
Measures the passage of time to maintain a calendar and clock.
Ultra-low power design to support battery powered systems.
Provides Seconds, Minutes, Hours, Day of Month, Month, Year, Day of Week, and Day
of Year.
Can use either the RTC dedicated 32 kHz oscillator input or clock derived from the
external crystal/oscillator input at XTAL1. Programmable reference clock divider
allows fine adjustment of the RTC.
Dedicated power supply pin can be connected to a battery or the main 3.3 V.
cy(PCLK)
4.
Rev. 01 — 15 October 2008
cy(PCLK)
256
Single-chip 16-bit/32-bit microcontrollers
4) to (T
cy(PCLK)
LPC2157/2158
2
32
© NXP B.V. 2008. All rights reserved.
4) in multiples of
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