參數(shù)資料
型號(hào): ST72T121J2B6
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 86/93頁
文件大小: 915K
代理商: ST72T121J2B6
86/93
ST72E121 ST72T121
PERIPHERAL CHARACTERISTICS
(Cont’d)
Measurement points are V
OL
, V
OH
, V
IL
and V
IH
in the SPI Timing Diagram
Figure 42. SPI Master Timing Diagram CPHA=0, CPOL=0
Serial Peripheral Interface
Ref.
Symbol
Parameter
Condition
Value
Unit
Min.
Max.
f
SPI
SPI frequency
Master
Slave
Master
Slave
Slave
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
1/128
dc
4
2
120
120
100
90
100
90
100
100
100
100
1/4
1/2
f
CPU
1
t
SPI
SPI clock periode
t
CPU
2
3
t
Lead
t
Lag
Enable lead time
Enable lag time
ns
ns
4
t
SPI_H
Clock (SCK) high time
ns
5
t
SPI_L
Clock (SCK) low time
ns
6
t
SU
Data set-up time
ns
7
t
H
Data hold time (inputs)
ns
8
t
A
Access time (time to data active
from high impedance state)
Disable time (hold time to high im-
pedance state)
Slave
0
120
ns
9
t
Dis
240
ns
10
t
V
Data valid
Master (before capture edge)
Slave (after enable edge)
Master (before capture edge)
Slave (after enable edge)
Outputs: SCK,MOSI,MISO
Inputs: SCK,MOSI,MISO,SS
Outputs: SCK,MOSI,MISO
Inputs: SCK,MOSI,MISO,SS
0.25
120
t
CPU
ns
t
CPU
ns
ns
μ
s
ns
μ
s
11
t
Hold
Data hold time (outputs)
0.25
0
12
t
Rise
Rise time
(20% V
DD
to 70% V
DD
, C
L
= 200pF)
Fall time
(70% V
DD
to 20% V
DD
, C
L
= 200pF)
100
100
100
100
13
t
Fall
1
6
7
10
11
12
13
SS
(INPUT)
SCK
(OUTPUT)
MISO
(INPUT)
MOSI
(OUTPUT)
4
5
D7-OUT
D6-OUT
D0-OUT
D7-IN
D6-IN
D0-IN
VR000109
86
相關(guān)PDF資料
PDF描述
ST72T121J2T6 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72T121J2T6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI/SCI 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
ST72T121J2T6S 制造商:STMicroelectronics 功能描述:
ST72T121J4B6 功能描述:8位微控制器 -MCU OTP EPROM 16K SPI/SC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
ST72T121J4T6 功能描述:8位微控制器 -MCU OTP EPROM 16K SPI/SC 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
ST72T121J4T6S 制造商:STMicroelectronics 功能描述: