參數(shù)資料
型號(hào): T89C51CC02UA-TISIM
廠商: Atmel
文件頁數(shù): 128/159頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 16K 28SOIC
標(biāo)準(zhǔn)包裝: 27
系列: AT89C CAN
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: CAN,UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 20
程序存儲(chǔ)器容量: 16KB(16K x 8)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
包裝: 管件
配用: AT89STK-06-ND - KIT DEMOBOARD 8051 MCU W/CAN
其它名稱: T89C51CC02UATISIM
70
AT/T89C51CC02
4126L–CAN–01/08
Watchdog Programming
The three lower bits (S0, S1, S2) located into WDTPRG register permit to program the
WDT duration.
Table 50. Machine Cycle Count
To compute WD Timeout, the following formula is applied:
Note:
Svalue represents the decimal value of (S2 S1 S0)
Find Hereafter computed Timeout values for f
OSCXTAL = 12 MHz in X1 mode
Table 51. Timeout Computation
S2
S1
S0
Machine Cycle Count
00
0
2
14 - 1
00
1
2
15 - 1
01
0
216 - 1
01
1
2
17 - 1
10
0
2
18 - 1
10
1
219 - 1
11
0
220 - 1
11
1
2
21 - 1
S2
S1
S0
fOSC=12 MHz
fOSC=16MHz
fOSC=20 MHz
0
16.38 ms
12.28 ms
9.82 ms
0
1
32.77 ms
24.57 ms
19.66 ms
0
1
0
65.54 ms
49.14 ms
39.32 ms
0
1
131.07 ms
98.28 ms
78.64 ms
1
0
262.14 ms
196.56 ms
157.28 ms
1
0
1
524.29 ms
393.12 ms
314.56 ms
1
0
1.05 s
786.24 ms
629.12 ms
1
2.10 s
1.57 s
1.25 s
FTime
Out
F
osc
62
×
WD X2
X2
2
14
2
Svalue
×
()
-----------------------------------------------------------------------------
=
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