(12) I2C Timing a. Master Mode (V
參數(shù)資料
型號: ATTINY24A-SSUR
廠商: Atmel
文件頁數(shù): 113/135頁
文件大小: 0K
描述: MCU AVR 2KB FLASH 20MHZ 14SOIC
產(chǎn)品培訓模塊: MCU Product Line Introduction
tinyAVR Introduction
標準包裝: 1
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: USI
外圍設備: 欠壓檢測/復位,POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 12
程序存儲器容量: 2KB(1K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 128 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
包裝: 標準包裝
其它名稱: ATTINY24A-SSURDKR
MB91470/480 Series
78
(12) I2C Timing
a. Master Mode
(VCC
= 4.0 V to 5.5 V, VSS = AVSS10 = AVSS12 = 0.0 V, TA = 40 °C to + 85 °C)
*1 : tCYCP indicates the peripheral clock cycle time.
*2 : A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system, but the requirement
tSUDAT
≥ 250 ns must then be met.
If a device does not extend the “L” period of the SCL signal, it is necessary to output the next piece of data to
the SDA line 1250 ns (SDA and SCL rising Max time + tSUDAT) before the SCL line is released.
*3 : For use at over 100 kHz, set the peripheral clock to at least 6 MHz.
*4 : R and C are the pull-up resistance and load capacitance of the SCL and SDA lines.
Parameter
Sym-
bol
Pin
name
Condition
Standard Mode
Fast Mode*3
Unit
Remarks
Min
Max
Min
Max
SCL clock
frequency
fSCL
SDAn,
SCLn
R=1 k
,
C=50 pF*4
0100
0400
kHz
“L” width of
the SCL clock
tLOW
4.7
1.3
s
“H” width of the
SCL clock
tHIGH
4.0
0.6
s
Bus free time
between STOP
and START
conditions
tBUS
4.7
1.3
s
SCL
↓→
SDA output
delay time
tDLDAT
5
× tCYCP*1
5
× tCYCP*1 ns
Setup time for a
repeated START
condition
SCL
↑→SDA↓
tSUSTA
4.7
0.6
s
Hold time for a re-
peated START
condition
SDA
↓→SCL↓
tHDSTA
4.0
0.6
s
The first
clock pulse
is generated
after this.
Setup time for
STOP condition
SCL
↑→SDA↑
tSUSTO
4.0
0.6
s
SDA Data input
hold time
(vs. SCL
↓)
tHDDAT
2
× tCYCP *1
2
× tCYCP *1
s
SDA Data input
setup time
(vs. SCL
↑)
tSUDAT
250
100 *2
ns
相關(guān)PDF資料
PDF描述
PCA9621D,118 IC BUS OUTPUT PORT 2WIRE 16SOIC
PCA9536DP/DG,118 IC I/O EXPANDER I2C 4B 8TSSOP
PCF8575TS/1,118 IC I/O EXPANDER I2C 16B 24SSOP
PCA9539D,118 IC I/O EXPANDER I2C 16B 24SOIC
PCA9555DB,118 IC I/O EXPANDER I2C 16B 24SSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATTINY24V 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
ATTINY24V_09 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
ATTINY24V-10MU 功能描述:8位微控制器 -MCU AVR 2K FLASH 128B EE & SRAM USI ADC 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 安裝風格:SMD/SMT
ATTINY24V-10MUR 功能描述:8位微控制器 -MCU 2KB FL 128B EE 128B SRAM 10MHz, IND 1.8V 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 安裝風格:SMD/SMT
ATTINY24V-10PU 功能描述:8位微控制器 -MCU 2kB Flash 0.128kB EEPROM 12 I/O Pins 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 安裝風格:SMD/SMT