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參數(shù)資料
| 型號(hào)： | D87C51FB |
| 英文描述： | IC-8-BIT CMOS CPU |
| 中文描述： | 集成電路8位CMOS處理器 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 259K |
| 代理商： | D87C51FB |
8XC51FX
DC CHARACTERISTICS
(Over Operating Conditions)
All parameter values apply to all devices unless otherwise indicated. (Continued)
Symbol
Parameter
Min
Typical
(Note 4)
Max
Units
Test Conditions
I
LI
I
TL
Input leakage Current (Port 0)
g
10
m
A
V
IN
e
V
IL
or V
IH
V
IN
e
2V
Logical 1 to 0 Transition Current
(Ports 1, 2 and 3)
Express
Commercial
b
750
b
650
m
A
RRST
RST Pulldown Resistor
40
225
K
X
CIO
Pin Capacitance
10
pF
@
1MHz, 25
§
C
(Note 3)
I
CC
Power Supply Current:
Active Mode
At 12 MHz (Figure 5)
At 16 MHz
At 24 MHz
At 33 MHz
Idle Mode
At 12 MHz (Figure 5)
At 16 MHz
At 24 MHz
At 33 MHz
Power Down Mode
15
20
28
35
30
38
56
56
mA
mA
mA
mA
5
6
7
7
5
7.5
9.5
13.5
15
75
mA
mA
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. Typicals are based on limited number of samples, and are not guaranteed. The values listed are at room temperature and 5V.
5. 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.
272322–5
Note:
I
CC
max at 33 MHz is at 5V
g
10% V
CC
, while I
CC
max at 24 MHz and below is at 5V
g
20% V
CC
.
Figure 5. 8XC51FA/FB/FC I
CC
vs Frequency
9
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相關(guān)代理商/技術(shù)參數(shù) |
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| D87C51FB-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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| D87C51FB-3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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