- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄98145 > ST72T774S9T1 (STMICROELECTRONICS) 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP44 PDF資料下載
參數(shù)資料
| 型號(hào)： | ST72T774S9T1 |
| 廠(chǎng)商： | STMICROELECTRONICS |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | TQFP-44 |
| 文件頁(yè)數(shù)： | 70/144頁(yè) |
| 文件大?。?/td> | 1280K |
| 代理商： | ST72T774S9T1 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)當(dāng)前第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)
ST72774/ST727754/ST72734
31/144
I/O PORTS (Cont’d)
4.1.4 Port B
The alternate functions are the I/O pins of the on-
chip DDC SCLD & SCDAD for PB0:1, the I/O pins
of the on-chip I2C SCLI & SCDAI for PB2:3, and 4
bits of port B bit can be used as the Analog source
to the Analog to Digital Converter.
Only one I/O line must be configured as an analog
input at any time. The user must avoid any
situation in which more than one I/O pin is selected
as an analog input simultaneously to avoid device
malfunction.
When the analog function is selected for an I/O pin,
the pull-up of the respective pin of Port B is
disconnected and the digital input is off.
All unused I/O lines should be tied to an
appropriate logic level (either VDD or VSS)
Since the ADC is on the same chip as the
microprocessor, the user should not switch heavily
loaded signals during conversion, if high precision
is required. Such switching will affect the supply
voltages used as analog references. the accuracy
of the conversion depends on the quality of the
power supplies (VDD and VSS). The user must take
special care to ensure that a well regulated
reference voltage is present on the VDD and VSS
pins (power supply variations must be less than
5V/ms). This implies, in particular, that a suitable
decoupling capacitor is used at the VDD pin.
Table 9. Port B Description
PORT B
I/O
Alternate Function
Input*
Output
Signal
Condition
PB0
Without pull-up
Open-drain
SCLD (input with CMOS schmitt trigger or
open drain output)
DDC enable
PB1
Without pull-up
Open-drain
SDAD (input with CMOS schmitt trigger or
open drain output)
DDC enable
PB2
Without pull-up
Open-drain
open drain output)
I2C enable
PB3
Without pull-up
Open-drain
SDAI (input with CMOS schmitt trigger or
open drain output)
I2C enable
PB4
With pull-up
Push-pull
Analog input (ADC) (without pull-up)
CH[2:0]=000 (ADCCSR)
PB5
With pull-up
Push-pull
Analog input (ADC) (without pull-up)
CH[2:0]=001 (ADCCSR)
PB6
With pull-up
Push-pull
Analog input (ADC) (without pull-up)
CH[2:0]=010 (ADCCSR)
10-bit output 1 (PWM)
OE0=1 (PWMOE)
PB7
With pull-up
Push-pull
Analog input (ADC) (without pull-up)
CH[2:0]=011 (ADCCSR)
10-bit output 2 (PWM)
OE1=1 (PWMOE)
*Reset state
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST7294C6B6 | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDIP28 |
| ST72T94C6M6 | 8-BIT, OTPROM, MICROCONTROLLER, PDSO28 |
| ST72C171K2B6 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32 |
| ST72E85A5G0 | 8-BIT, UVPROM, 4.332 MHz, MICROCONTROLLER, CQFP80 |
| ST72F321J9T7 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST730 | 制造商:IRF 制造商全稱(chēng):International Rectifier 功能描述:PHASE CONTROL THYRISTORS Hockey Puk Version |
| ST7-30 | 制造商:SUPERWORLD 制造商全稱(chēng):Superworld Electronics 功能描述:POWER TRANSFORMER |
| ST-7300 | 制造商:GC Electronics 功能描述: |
| ST730186-3 | 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述: |
| ST730268-1 | 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。