參數(shù)資料
型號: ST72F321J9T7
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, PLASTIC, TQFP-44
文件頁數(shù): 67/176頁
文件大小: 1112K
代理商: ST72F321J9T7
ST72321J
159/176
12.11 COMMUNICATION INTERFACE CHARACTERISTICS
12.11.1 SPI - Serial Peripheral Interface
Subject to general operating conditions for VDD,
fCPU, and TA unless otherwise specified.
Refer to I/O port characteristics for more details on
the input/output alternate function characteristics
(SS, SCK, MOSI, MISO).
Figure 92. SPI Slave Timing Diagram with CPHA=0 3)
Notes:
1. Data based on design simulation and/or characterisation results, not tested in production.
2. When no communication is on-going the data output line of the SPI (MOSI in master mode, MISO in slave mode) has
its alternate function capability released. In this case, the pin status depends on the I/O port configuration.
3. Measurement points are done at CMOS levels: 0.3xVDD and 0.7xVDD.
Symbol
Parameter
Conditio ns
Min
Max
Unit
fSCK
1/tc(SCK)
SPI clock frequency
Master
fCPU=8MHz
fCPU/128
0.0625
fCPU/4
2
MHz
Slave
fCPU=8MHz
0
fCPU/2
4
tr(SCK)
tf(SCK)
SPI clock rise and fall time
see I/O port pin description
tsu(SS)
SS setup time
Slave
120
ns
th(SS)
SS hold time
Slave
120
tw(SCKH)
tw(SCKL)
SCK high and low time
Master
Slave
100
90
tsu(MI)
tsu(SI)
Data input setup time
Master
Slave
100
th(MI)
th(SI)
Data input hold time
Master
Slave
100
ta(SO)
Data output access time
Slave
0
120
tdis(SO)
Data output disable time
Slave
240
tv(SO)
Data output valid time
Slave (after enable edge)
120
th(SO)
Data output hold time
0
tv(MO)
Data output valid time
Master (before capture edge)
0.25
tCPU
th(MO)
Data output hold time
0.25
SS INPUT
SCK
INPUT
CPHA=0
MOSI INPUT
MISO OUTPUT
CPHA=0
tc(SCK)
tw(SCKH)
tw(SCKL)
tr(SCK)
tf(SCK)
tv(SO)
ta(SO)
tsu(SI)
th(SI)
MSB OUT
MSB IN
BIT6 OUT
LSB IN
LSB OUT
see note 2
CPOL=0
CPOL=1
tsu(SS)
th(SS)
tdis(SO)
th(SO)
see
note 2
BIT1 IN
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72F321J9TA 功能描述:8位微控制器 -MCU AUTO 8BIT MICRO RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72F321J9TAE 功能描述:8位微控制器 -MCU 8B MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72F321J9TAS 制造商:STMicroelectronics 功能描述:
ST72F321J9TC 功能描述:8位微控制器 -MCU Flask 60K SPI/SCI/I2 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72F321J9TCE 制造商:STMicroelectronics 功能描述: