N32G452xB/xC/xE
数据手册
N32G452系列采用 32 bit ARM Cortex-M4F内核,最高工½主频144MHz,支持浮点运算和DSP指令,
集成多达512KB Flash,144KB SRAM, 2x12bit 5Msps ADC,2x1Msps 12bit DAC,集成多路
U(S)ART、I2C、SPI、QSPI、USB、CAN、1x SDIO通信接口,内½密码算法硬件加速引擎
关键特性
内核
CPU
―
32
½
ARM Cortex-M4
内核+
FPU,单周期硬件乘除法指令,支持 DSP
指令和
MPU
― 内½
8KB
指令
Cache
缓存,支持
Flash
加速单元执行程序
0
等待
―
最高主频
144MHz,180DMIPS
加密存储器
― 高达
512KByte
片内
Flash,支持加密存储、多用户分区管理及数据保护,支持硬件 ECC
校验,10
万次擦写次数,10 年数据保持
―
144KByte
片内
SRAM(包含 16KByte Retention RAM),Retention RAM
支持硬件奇偶校验
时钟
―
HSE:4MHz~32MHz
外部高速晶½
―
LSE:32.768KHz
外部½速晶½
―
HSI:内部高速 RC OSC 8MHz
―
LSI:内部½速 RC OSC 40KHz
― 内½高速
PLL
― 支持
1
路时钟输出,可配½为可配½系统时钟、HSE、HSI 或
PLL
后分频输出
复½
― 支持上电/掉电/外部引脚复½
― 支持可编程的½电压检测及复½
― 支持看门狗复½
通信接口
―
7
个
U(S)ART
接口, 最高速率达
4.5 Mbps,其中 3
个
USART
接口(支持
1xISO7816,1xIrDA,
LIN),4
个
UART
接口
―
3
个
SPI
接口,速度高达
36 MHz,其中 2
个支持
I2S
―
1
个
QSPI
接口,速率高达
144 Mbps
―
4
个
I2C
接口,速率高达
1 MHz,主从模式可配,从机模式下支持双地址响应
―
1
个
USB2.0 Full speed Device
接口
―
2
个
CAN 2.0A/B
总线接口
―
1
个
SDIO
接口,支持
SD/MMC
格式
1
高性½模拟接口
―
2
个
12bit 5Msps
高速
ADC,多种精度可配½,6bit
模式下采样率高达
9Msps,多达 18
路外部单端
输入通道,支持差分模式
―
2
个
12bit DAC,采样率 1Msps
― 支持外部输入独立参考电压源
― 所有模拟接口支持
1.8~3.6V
全电压工½
最大支持
97
个支持复用功½的
GPIOs,大多数 GPIO
支持
5V
耐压.
2
个高速
DMA
控制器,每个控制器支持
8
通道,通道源地址及目的地址任意可配
RTC
实时时钟,支持闰年万年历,闹钟事件,周期性唤醒,支持内外部时钟校准
定时计数器
―
2
个
16bit
高级定时计数器,支持输入捕获、输出比较、PWM 输出以及正交编码输入等功½,最
高控制精度
6.9nS。每个定时器有 4
个独立的通道,其中
3
个通道支持
6
路互补
PWM
输出
―
4
个
16bit
通用定时计数器, 每个定时器有
4
个独立通道,支持输入捕获/输出比较/PWM 输出
―
2
个
16bit
基础定时计数器
―
1x 24bit SysTick
―
1x 7bit
窗口看门狗(WWDG)
―
1x 12bit
独立看门狗(
IWDG)
编程方式
― 支持
SWD/JTAG
在线调试接口
― 支持
UART、USB Bootloader
安全特性
― 内½密码算法硬件加速引擎
― 支持
AES、DES、SHA,SM1、 SM3、SM4、SM7,MD5
算法
―
Flash
存储加密,多用户分区管理(MMU)
―
TRNG
真随机数发生器
―
CRC16/32
运算
― 支持写保护(WRP),多种读保护(RDP)等级(L0/L1/L2)
― 支持安全启动,程序加密下½½,安全更新
― 支持时钟失效监测,防拆监测
96
½
UID
及
128
½
UCID
工½条件
― 工½电压范围:1.8V~3.6V
― 工½温度范围:-40℃½105℃
―
ESD:±
4KV(HBM
模型),
±
1KV(CDM
模型)
2
封装
―
LQFP48(7mm x 7mm)
―
TQFP48(7mm x 7mm)
―
LQFP64(10mm x 10mm)
―
LQFP80(12mm x 12mm)
―
LQFP100(14mm x 14mm)
―
LQFP128(14mm x 14mm)
订购型号
系列
型号
N32G452xB
N32G452xC
N32G452xE
N32G452CBL7, N32G452RBL7, N32G452MBL7, N32G452VBL7
N32G452CCL7, N32G452CCT7, N32G452RCL7, N32G452MCL7, N32G452VCL7,
N32G452QCL7
N32G452CEL7, N32G452REL7, N32G452MEL7, N32G452VEL7, N32G452QEL7
3
目½
1
产品简介
..................................................................................................................................................................... 1
½名规则
............................................................................................................................................................. 2
器件一览
............................................................................................................................................................. 3
2
功½简介
..................................................................................................................................................................... 4
处理器内核
......................................................................................................................................................... 4
存储器
................................................................................................................................................................. 4
2.2.1
嵌入式闪存存储器.........................................................................................................................................
5
2.2.2
嵌入式SRAM
................................................................................................................................................. 5
2.2.3
嵌套的向量式中断控制器(NVIC)
................................................................................................................ 6
外部中断/事件控制器(EXTI)
............................................................................................................................ 6
时钟系统
............................................................................................................................................................. 6
启动模式
............................................................................................................................................................. 7
供电方案
............................................................................................................................................................. 7
可编程电压监测器
............................................................................................................................................. 8
电压调压器
......................................................................................................................................................... 8
½功耗模式
......................................................................................................................................................... 8
直接存储器存取(DMA)
..................................................................................................................................... 9
实时时钟(RTC)
.................................................................................................................................................. 9
定时器和看门狗
................................................................................................................................................. 9
2.12.1
基本定时器-TIM6和TIM7
...................................................................................................................... 10
2.12.2
通用定时器(TIMx)
.................................................................................................................................. 10
2.12.3
高级控制定时器(TIM1和TIM8)
............................................................................................................. 10
2.12.4
系统时基定时器(Systick)
........................................................................................................................ 11
2.12.5
看门狗定时器(WDG)
.............................................................................................................................. 12
I
2
C总线接口 ..................................................................................................................................................... 12
通用同步/异步收发器(USART)
...................................................................................................................... 13
串行外设接口(SPI)
.......................................................................................................................................... 15
串行音频接口(I
2
S) ........................................................................................................................................... 16
四线外设接口(QSPI)
........................................................................................................................................ 16
安全数字输入输出接口(SDIO)
....................................................................................................................... 17
控制器区域½络(CAN)
.................................................................................................................................... 17
通用串行总线(USB)
........................................................................................................................................ 18
通用输入输出接口(GPIO)
............................................................................................................................... 18
模拟/数字½换器(ADC)
................................................................................................................................... 19
数字/模拟½换器(DAC)
................................................................................................................................... 20
温度传感器(TS)................................................................................................................................................
21
循环冗½校验计算单元(CRC)
........................................................................................................................ 21
算法硬件加速引擎(SAC).................................................................................................................................
21
唯一设备序列号(UID)
..................................................................................................................................... 22
串行单线JTAG调试口(SWJ-DP)
..................................................................................................................... 22
3
引脚定义和描述
....................................................................................................................................................... 23
封装示意图
....................................................................................................................................................... 23
3.1.1 LQFP48 & TQFP48 ...................................................................................................................................... 23
3.1.2 LQFP64 ......................................................................................................................................................... 24
3.1.3 LQFP80 ......................................................................................................................................................... 25
3.1.4 LQFP100 ....................................................................................................................................................... 26
3.1.5 LQFP128 ....................................................................................................................................................... 27
引脚复用定义
................................................................................................................................................... 28
I
4
电气特性
................................................................................................................................................................... 35
测试条件
........................................................................................................................................................... 35
4.1.1
最小和最大数值...........................................................................................................................................
35
4.1.2
典型数值
...................................................................................................................................................... 35
4.1.3
典型曲线
...................................................................................................................................................... 35
4.1.4
负½½电容
...................................................................................................................................................... 35
4.1.5
引脚输入电压
.............................................................................................................................................. 35
4.1.6
供电方案
...................................................................................................................................................... 37
4.1.7
电流消耗测量
.............................................................................................................................................. 38
绝对最大额定值
............................................................................................................................................... 38
工½条件
........................................................................................................................................................... 39
4.3.1
通用工½条件
.............................................................................................................................................. 39
4.3.2
上电和掉电时的工½条件
........................................................................................................................... 39
4.3.3
内嵌复½和电源控制模块特性
................................................................................................................... 39
4.3.4
内½的参考电压...........................................................................................................................................
40
4.3.5
供电电流特性
.............................................................................................................................................. 41
4.3.6
外部时钟源特性...........................................................................................................................................
43
4.3.7
内部时钟源特性...........................................................................................................................................
47
4.3.8 PLL特性 ....................................................................................................................................................... 48
4.3.9 FLASH存储器特性 ...................................................................................................................................... 48
4.3.10
绝对最大值(电气敏感性)
........................................................................................................................ 49
4.3.11
I/O端口特性 ............................................................................................................................................. 49
4.3.12
NRST引脚特性 ........................................................................................................................................ 52
4.3.13
TIM定时器特性 ....................................................................................................................................... 53
4.3.14
I2C接口特性 ............................................................................................................................................ 53
4.3.15
SPI/I2S接口特性 ...................................................................................................................................... 54
4.3.16
QSPI特性 ................................................................................................................................................. 61
4.3.17
SD/SDIO主机接口特性 ........................................................................................................................... 62
4.3.18
USB特性 .................................................................................................................................................. 63
4.3.19
控制器局域½络(CAN)接口特性
........................................................................................................... 64
4.3.20
12½模数½换器(ADC)电气参数 ........................................................................................................... 64
4.3.21
12½数模½换器(DAC)电气参数 ........................................................................................................... 67
4.3.22
温度传感器(TS)特性
............................................................................................................................... 68
5
封装尺寸
................................................................................................................................................................... 70
LQFP48 ............................................................................................................................................................. 70
TQFP48 ............................................................................................................................................................. 71
LQFP64 ............................................................................................................................................................. 72
LQFP80 ............................................................................................................................................................. 73
LQFP100 ........................................................................................................................................................... 74
LQFP128 ........................................................................................................................................................... 75
丝印说明
........................................................................................................................................................... 76
6
7
版本历史
................................................................................................................................................................... 77
声明
........................................................................................................................................................................... 79
II