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參數(shù)資料
| 型號： | T89C51RD2-RDVIM |
| 廠商： | ATMEL CORP |
| 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, PQFP64 |
| 封裝： | VQFP-64 |
| 文件頁數(shù)： | 83/104頁 |
| 文件大?。?/td> | 798K |
| 代理商： | T89C51RD2-RDVIM |
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83
T89C51RD2
4243G
–
8051
–
05/03
DC Parameters for Low
Voltage
T
A
= 0
°
C to +70
°
C; V
SS
= 0 V; V
CC
= 2.7 V to 3.6 V; F = 0 to 25 MHz
T
A
= -40
°
C to +85
°
C; V
SS
= 0 V; V
CC
= 2.7 V to 3.6 V; F = 0 to 25 MHz
Table 45.
DC Parameters for Low Voltage
4. Operating I
CC
is measured with all output pins disconnected; XTAL1 driven with T
CLCH
, T
CHCL
= 5 ns (see Figure 36.), V
IL
=
V
SS
+ 0.5 V,
V
IH
= V
CC
- 0.5V; XTAL2 N.C.; EA = RST = Port 0 = V
CC
. I
CC
would be slightly higher if a crystal oscillator used (see Figure
33.).
5. Idle I
CC
is measured with all output pins disconnected; XTAL1 driven with T
CLCH
, T
CHCL
= 5 ns, V
IL
= V
SS
+ 0.5 V, V
IH
= V
CC
-
0.5 V; XTAL2 N.C; Port 0 = V
CC
; EA = RST = V
SS
(see Figure 34.).
6. Power Down I
CC
is measured with all output pins disconnected; EA = V
SS
, PORT 0 = V
CC
; XTAL2 NC.; RST = V
SS
(see Fig-
ure 35.). In addition, the WDT must be inactive and the POF flag must be set.
7. Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the V
OL
s of ALE and Ports 1
and 3. The noise is due to external bus capacitance discharging into the Port 0 and Port 2 pins when these pins make 1 to 0
Symbol
Parameter
Min
Typ
(5)
Max
Unit
Test Conditions
V
IL
Input Low Voltage
-0.5
0.2 V
CC
- 0.1
V
V
IH
Input High Voltage except XTAL1, RST
0.2 V
CC
+ 0.9
V
CC
+ 0.5
V
V
IH1
Input High Voltage, XTAL1, RST
0.7 V
CC
V
CC
+ 0.5
V
V
OL
Output Low Voltage, ports 1, 2, 3, 4 and 5
(6)
0.45
V
I
OL
= 0.8 mA
(4)
V
OL1
Output Low Voltage, port 0, ALE, PSEN
(6)
0.45
V
I
OL
= 1.6 mA
(4)
V
OH
Output High Voltage, ports 1, 2, 3, 4 and 5
0.9 V
CC
V
I
OH
= -10
μ
A
V
OH1
Output High Voltage, port 0, ALE, PSEN
0.9 V
CC
V
I
OH
= -40
μ
A
I
IL
Logical 0 Input Current ports 1, 2, 3, 4 and 5
-50
μ
A
Vin = 0.45 V
I
LI
Input Leakage Current
±
10
μ
A
0.45 V < Vin < V
CC
I
TL
Logical 1 to 0 Transition Current, ports 1, 2, 3, 4
and 5
-650
μ
A
Vin = 2.0 V
R
RST
RST Pulldown Resistor
50
90
200
k
CIO
Capacitance of I/O Buffer
10
pF
Fc = 1 MHz
T
A
= 25
°
C
I
PD
Power Down Current
1
50
μ
A
V
CC
= 2.7 V to 3.6 V
(3)
I
CCOP
Power Supply Current on normal mode
0.6 Freq (MHz)
+ 3
mA
V
CC
= 3.6 V
(1)
I
CCProgFlash
Power Supply Current during Flash Write / Erase
0.3 Freq
(MHz) + 10
0.4 Freq (MHz)
+ 12
mA
V
CC
= 3.6 V
(1)
I
CCProgEE
Power Supply Current during EEprom data Write
/ Erase
0.7 Freq
(MHz) + 3
0.7 Freq (MHz)
+ 18
mA
V
CC
= 3.6 V
(1)
I
CCIDLE
Power Supply Current on idle mode
0.3 Freq (MHz)
+ 2
mA
V
CC
= 3.6 V
(2)
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