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參數(shù)資料
| 型號： | 8XL51FA |
| 廠商： | Intel Corp. |
| 英文描述： | LOW VOLTAGE CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS |
| 中文描述： | 低壓CHMOS單片8位微控制器 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大小： | 285K |
| 代理商： | 8XL51FA |
8XL51FA/FB/FC
DC CHARACTERISTICS
(Over Operating Conditions)
All parameter values apply to all devices unless otherwise indicated. (Continued)
Symbol
Parameter
Min
Max
Units
Test Conditions
I
TL
Logical 1 to 0
Transition Current
(Ports 1, 2 and 3)
b
350
m
A
V
IN
e
1.4V
RRST
RST Pulldown Resistor
40
225
K
X
I
CC
Power Supply Current
Active Mode at 16 MHz
Idle Mode at 16 MHz
Power-Down Mode
(Note 3)
25
8
30
mA
mA
m
A
NOTES:
1. Capacitive loading on Ports 0 and 2 may cause noise pulses above 0.4V to be superimposed on the V
OL
s of ALE and
Ports 1, 2 and 3. The noise is due to external bus capacitance discharging into the Port 0 and Port 2 pins when these pins
change from 1 to 0. In applications where capacitance loading exceeds 100 pF, the noise pulses on these signals may
exceed 0.8V. It may be desirable to qualify ALE or other signals with a Schmitt Trigger, or CMOS-level input logic.
2. Capacitive loading on Ports 0 and 2 cause the V
OH
on ALE and PSEN to drop below the 0.9 V
CC
specification when the
address lines are stabilizing.
3. See Figures 6–9 for test conditions. Minimum V
CC
for power down is 2V.
4. Under steady state (non-transient) conditions, I
OL
must be externally limited as follows:
Maximum I
OL
per port pin:
10 mA
Maximum I
OL
per 8-bit port -
Port 0:
26 mA
Ports 1, 2, and 3:
15 mA
Maximum total I
OL
for all output pins:
71 mA
If I
OL
exceeds the test condition, V
OL
may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test conditions.
Running the device with EA at a higher voltage than V
CC
sinks additional currrent.
272356–6
I
CC
Max at other frequencies (3.5 MHz to 20 MHz) is given by:
Active Mode
I
CC
MAX
e
1.1
c
FREQ
a
7.6
Idle Mode
I
CC
MAX
e
0.4
c
FREQ
a
1.8
Where FREQ is in MHz, I
CC
MAX is given in mA.
Figure 5. I
CC
vs Frequency
9
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