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參數(shù)資料
| 型號： | T89C51RD2-SMUCM |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC68 |
| 封裝： | PLASTIC, LCC-68 |
| 文件頁數(shù)： | 94/104頁 |
| 文件大小： | 798K |
| 代理商： | T89C51RD2-SMUCM |
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94
T89C51RD2
4243G
–
8051
–
05/03
Clock Waveforms
Valid in normal clock mode. In X2 mode XTAL2 must be changed to XTAL2/2.
This diagram indicates when signals are clocked internally. The time it takes the signals
to propagate to the pins, however, ranges from 25 to 125 ns. This propagation delay is
dependent on variables such as temperature and pin loading. Propagation also varies
from output to output and component. Typically though (T
A
=25
°
C fully loaded) RD and
WR propagation delays are approximately 50ns. The other signals are typically 85 ns.
Propagation delays are incorporated in the AC specifications.
DATA
PCL OUT
DATA
PCL OUT
DATA
PCL OUT
SAMPLED
FLOAT
SAMPLED
FLOAT
SAMPLED
FLOAT
STATE4
STATE5
STATE6
STATE1
STATE2
STATE3
STATE4
STATE5
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
P1
P2
THESE SIGNALS ARE NOT ACTIVATED DURING THE
EXECUTION OF A MOVX INSTRUCTION
INDICATES ADDRESS TRANSITIONS
EXTERNAL PROGRAM MEMORY FETCH
FLOAT
DATA
SAMPLED
DPL OR Rt OUT
INDICATES DPH OR P2 SFR TO PCH TRANSITION
PCL OUT (IF PROGRAM
MEMORY IS EXTERNAL)
PCL OUT (EVEN IF PROGRAM
MEMORY IS INTERNAL)
PCL OUT (IF PROGRAM
MEMORY IS EXTERNAL)
OLD DATANEW DATA
P0 PINS SAMPLED
P0 PINS SAMPLED
P1, P2, P3 PINS SAMPLED
P1, P2, P3 PINS SAMPLED
RXD SAMPLED
INTERNAL
CLOCK
XTAL2
ALE
PSEN
P0
P2 (EXT)
READ CYCLE
WRITE CYCLE
WR
RD
P0
P2
PORT OPERATION
MOV PORT SRC
MOV DEST P0
MOV DEST PORT (P1. P2. P3)
(INCLUDES INTO. INT1. TO T1)
SERIAL PORT SHIFT CLOCK
TXD (MODE 0)
DATA OUT
DPL OR Rt OUT
INDICATES DPH OR P2 SFR TO PCH TRANSITION
P0
P2
RXD SAMPLED
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| T89C51RD2-SMUIM | 0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T8 | 8A TRIACS |
| T810-600R | 8A TRIACS |
| T810-600R-TR | 8A TRIACS |
| T810-800R | 8A TRIACS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| T89C51RD2-SMUC-M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SMUI-L | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SMUIM | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40 MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SMUI-M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
| T89C51RD2-SMVC-L | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:0 to 40MHz Flash Programmable 8-bit Microcontroller |
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