參數(shù)資料
型號： LPC1227FBD48/301,1
廠商： NXP Semiconductors
文件頁數(shù)： 8/61頁
文件大小： 0K
描述： MCU 32BIT 128K FLASH 8K 48-LQFP
產(chǎn)品培訓模塊： LPC1200 Series for Industrial Control
特色產(chǎn)品： LPC122x Cortex-M0 Microcontrollers
標準包裝： 250
系列： LPC1200
核心處理器： ARM? Cortex?-M0
芯體尺寸： 32-位
速度： 45MHz
連通性： I²C，IrDA，Microwire，SPI，SSI，SSP，UART/USART
外圍設備： 欠壓檢測/復位，DMA，POR，WDT
輸入/輸出數(shù)： 39
程序存儲器容量： 128KB（128K x 8）
程序存儲器類型： 閃存
RAM 容量： 8K x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 48-LQFP
包裝： 托盤
其它名稱： 568-5163
LPC1227FBD48/301
LPC122X
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 2 — 26 August 2011
16 of 61
NXP Semiconductors
LPC122x
32-bit ARM Cortex-M0 microcontroller
[1]
After reset, the SWD functions are selected by default on pins PIO0_26 and PIO0_25.
7.
Functional description
7.1 ARM Cortex-M0 processor
The ARM Cortex-M0 is a general purpose, 32-bit microprocessor, which offers high
performance and very low power consumption.
7.1.1 System tick timer
The ARM Cortex-M0 includes a System Tick timer (SYSTICK) that is intended to generate
a dedicated SYSTICK exception at a 10 ms interval.
7.2 On-chip flash program memory
The LPC122x contain up to 128 kB of on-chip flash memory.
7.3 On-chip SRAM
The LPC122x contain a total of up to 8 kB on-chip static RAM memory.
7.4 Memory map
The LPC122x incorporates several distinct memory regions, shown in the following
figures. Figure 4 shows the overall map of the entire address space from the user
program viewpoint following reset. The interrupt vector area supports address remapping.
The AHB peripheral area is 2 megabyte in size, and is divided to allow for up to 128
peripherals. The APB peripheral area is 512 kB in size and is divided to allow for up to 32
peripherals. Each peripheral of either type is allocated 16 kilobytes of space. This allows
simplifying the address decoding for each peripheral.
UART1
RXD1
I
PIO0_8
PIO2_11
PIO2_12
TXD1
O
PIO0_9
PIO2_10
PIO2_13
SSP/SPI
SCK
I/O
PIO0_14
-
MISO
I/O
PIO0_16
-
MOSI
I/O
PIO0_17
-
SSEL
I/O
PIO0_15
-
I2C
SCL
I/O
PIO0_10
-
SDA
I/O
PIO0_11
-
SWD
I
PIO0_18
PIO0_26
-
I/O
PIO0_25
PIO1_2
-
Reset
RESET
I
PIO0_13
-
Clockout pin
CLKOUT
O
PIO0_12
-
Table 4.
Pin multiplexing
Peripheral
Function
Type
Available on ports:
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