- 您現(xiàn)在的位置：買賣IC網 > PDF目錄373727 > TS80C51RA2-VCND (Atmel Corp.) High Performance 8-bit Microcontrollers PDF資料下載
參數(shù)資料
| 型號： | TS80C51RA2-VCND |
| 廠商： | Atmel Corp. |
| 英文描述： | High Performance 8-bit Microcontrollers |
| 中文描述： | 高性能8位微控制器 |
| 文件頁數(shù)： | 62/74頁 |
| 文件大?。?/td> | 903K |
| 代理商： | TS80C51RA2-VCND |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁當前第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁
62
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
10.5. AC Parameters
10.5.1. Explanation of the AC Symbols
Each timing symbol has 5 characters. The first character is always a “T” (stands for time). The other characters,
depending on their positions, stand for the name of a signal or the logical status of that signal. The following is
a list of all the characters and what they stand for.
Example:T
AVLL
= Time for Address Valid to ALE Low.
T
LLPL
= Time for ALE Low to PSEN Low.
T
A
= 0 to +70
°
C (commercial temperature range); V
SS
= 0 V; V
CC
= 5 V
±
10%; -M and -V ranges.
T
A
= -40
°
C to +85
°
C (industrial temperature range); V
SS
= 0 V; V
CC
= 5 V
±
10%; -M and -V ranges.
T
A
= 0 to +70
°
C (commercial temperature range); V
SS
= 0 V; 2.7 V < V
CC <
5.5 V; -L range.
T
A
= -40
°
C to +85
°
C (industrial temperature range); V
SS
= 0 V; 2.7 V < V
CC <
5.5 V; -L range.
Table 34. gives the maximum applicable load capacitance for Port 0, Port 1, 2 and 3, and ALE and PSEN signals.
Timings will be guaranteed if these capacitances are respected. Higher capacitance values can be used, but timings
will then be degraded.
Table 34. Load Capacitance versus speed range, in pF
Table 36., Table 39. and Table 42. give the description of each AC symbols.
Table 37., Table 40. and Table 43. give for each range the AC parameter.
Table 38., Table 41. and Table 44. give the frequency derating formula of the AC parameter. To calculate each
AC symbols, take the x value corresponding to the speed grade you need (-M, -V or -L) and replace this value
in the formula. Values of the frequency must be limited to the corresponding speed grade:
Table 35. Max frequency for derating formula regarding the speed grade
Example:
T
LLIV
in X2 mode for a -V part at 20 MHz (T = 1/20
E6
= 50 ns):
x= 22 (Table 38.)
T= 50ns
T
LLIV
= 2T - x = 2 x 50 - 22 = 78ns
-M
100
80
100
-V
50
50
30
-L
100
80
100
Port 0
Port 1, 2, 3
ALE / PSEN
-M X1 mode
40
25
-M X2 mode
20
50
-V X1 mode
40
25
-V X2 mode
30
33.3
-L X1 mode
30
33.3
-L X2 mode
20
50
Freq (MHz)
T (ns)
相關PDF資料 |
PDF描述 |
|---|---|
| TS80C51RA2-VCNR | High Performance 8-bit Microcontrollers |
| TS80C51RA2-VIBB | High Performance 8-bit Microcontrollers |
| TS80C51RA2-VIBD | High Performance 8-bit Microcontrollers |
| TS80C51RA2-VIBR | High Performance 8-bit Microcontrollers |
| TS80C51RA2-VIJB | High Performance 8-bit Microcontrollers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TS80C51RA2-VCNR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-VIA | 功能描述:IC MCU 8BIT 256BYTE 40MHZ 40-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:80C 標準包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設備:POR，WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB（32K x 8） 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據轉換器:- 振蕩器型:內部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP（0.600"，15.24mm） 包裝:管件 |
| TS80C51RA2-VIAB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-VIAD | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-VIAR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復。