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参数资料
| 型号： | STR910FAM42X6T |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 96 MHz, RISC MICROCONTROLLER, QFP80 |
| 封装： | LQFP-80 |
| 文件页数： | 41/100页 |
| 文件大小： | 1801K |
| 代理商： | STR910FAM42X6T |
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STR91xFAxxx
Pin description
45/103
5.2
Default pin functions
During and just after reset, all pins on ports 0-9 default to high-impedance input mode until
CPU firmware assigns other functions to the pins. This initial input mode routes all pins on
ports 0-9 to be read as GPIO inputs as shown in the “Default Pin Function” column of
Table 8. Simultaneously, certain port pin signals are also routed to other functional inputs as
shown in the “Default Input Function” column of Table 8, and these pin input functions will
remain until CPU firmware makes other assignments. At any time, even after the CPU
assigns pins to alternate functions, the CPU may always read the state of any pin on ports
0-9 as a GPIO input. CPU firmware may assign alternate functions to port pins as shown in
columns “Alternate Input 1” or “Alternate Output 1, 2, 3” of Table 8 by writing to control
registers at run-time.
5.2.1
General notes on pin usage
1
Since there are no internal or programmable pull-up resistors on ports 0-9, it is advised to
pull down to ground, or pull up to VDDQ (using max. 47 K
Ω resistors), all unused pins on
port 0-9. Another solution is to use the GPIO control registers to configure the unused pins
on ports 0-9 as output low level. The purpose of this is to reduce noise susceptibility, noise
generation, and minimize power consumption
2
All pins on ports 0 - 9 are 5V tolerant
3
Pins on ports 0,1,2,4,5,7,8,9 have 4 mA drive and 4mA sink. Ports 3 and 6 have 8 mA drive
and 8 mA sink.
4
For 8-bit non-muxed EMI operation: Port 8 is eight bits of data, ports 7 and 9 are 16 bits of
address.
5
For 16-bit muxed EMI operation: Ports 8 and 9 are 16 bits of muxed address and data bits,
port 7 is up to eight additional bits of high-order address
6
Signal polarity is programmable for interrupt request inputs, EMI_ALE, timer input capture
inputs and output compare/PWM outputs, motor control tach and emergency stop inputs,
and motor control phase outputs.
7
HiZ = High Impedance, V = Voltage Source, G = Ground, I/O = Input/Output
8
STR910FA devices do not support USB. On these devices USBDP and USBDN signals are
"Not Used" (USBDN is not connected, USBDP must be pulled up by a 1.5K ohm resistor to
VDDQ), and all functions named “USB" are not available.
9
STR910FA 128-pin and 144-ball devices do not support Ethernet. On these devices
PHYCLK and all functions named “MII*" are not available.
Table 8.
Device pin description
Package
Pin
name
Si
gn
al
type Default pin
function
Default
input
function
Alternate functions
LQ
FP80
LQ
FP12
8
LF
BG
A144
Alternate
input 1
Alternate
output 1
Alternate
output 2
Alternate
output 3
-
67
L11
P0.0
I/O
GPIO_0.0,
GP Input, HiZ
MII_TX_CLK,
PHY Xmit clock
I2C0_CLKIN,
I2C clock in
GPIO_0.0,
GP Output
I2C0_CLKOUT,
I2C clock out
ETM_PCK0,
ETM Packet
-
69
K10
P0.1
I/O
GPIO_0.1,
GP Input, HiZ
-
I2C0_DIN,
I2C data in
GPIO_0.1,
GP Output
I2C0_DOUT,
I2C data out
ETM_PCK1,
ETM Packet
-
71
J11
P0.2
I/O
GPIO_0.2,
GP Input, HiZ
MII_RXD0,
PHY Rx data0
I2C1_CLKIN,
I2C clock in
GPIO_0.2,
GP Output
I2C1_CLKOUT,
I2C clock out
ETM_PCK2,
ETM Packet
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相关代理商/技术参数 |
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| STR910FAM44H6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR910FAM44X6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR910FAW32 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR910FAW32H6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ARM966E-S⑩ 16/32-Bit Flash MCU with Ethernet, USB, CAN, AC motor control, 4 timers, ADC, RTC, DMA |
| STR910FAW32X6 | 功能描述:ARM微控制器 - MCU 256 + 32 64 RAM KB CAN EMI 80 I/O RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
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