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参数资料
| 型号： | P83C251SA16 |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | HIGH-PERFORMANCE CHMOS MICROCONTROLLER |
| 中文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 16/35页 |
| 文件大小： | 186K |
| 代理商： | P83C251SA16 |
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16
PRELIMINARY
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
5.1
D.C. Characteristics
Parameter values apply to all devices unless otherwise indicated.
Table 9. DC Characteristics at V
CC
= 4.5 – 5.5 V
Min
Typical
Symbol
Parameter
Max
Units
Test Conditions
V
IL
Input Low Voltage
(except EA#)
-0.5
0.2V
CC
– 0.1
V
V
IL
1
Input Low Voltage
(EA#)
0
0.2V
CC
– 0.3
V
V
IH
Input High Voltage
(except XTAL1, RST)
0.2V
CC
+ 0.9
V
CC
+ 0.5
V
V
IH
1
Input High Voltage
(XTAL1, RST)
0.7V
CC
V
CC
+ 0.5
V
V
OL
Output Low Voltage
(Port 1, 2, 3)
0.3
0.45
1.0
V
I
OL
= 100 μA
I
OL
= 1.6 mA
I
OL
= 3.5 mA
(Note 1, Note 2)
V
OL
1
Output Low Voltage
(Port 0, ALE, PSEN#)
0.3
0.45
1.0
V
I
OL
= 200 μA
I
OL
= 3.2 mA
I
OL
= 7.0 mA
(Note 1, Note 2)
V
OH
Output High Voltage
(Port 1, 2, 3, ALE,
PSEN#)
V
CC
– 0.3
V
CC
– 0.7
V
CC
– 1.5
V
I
OH
= -10 μA
I
OH
= -30 μA
I
OH
= -60 μA
(Note 3)
NOTES:
1.
Under steady-state (non-transient) conditions, I
OL
must be externally limited as follows:
Maximum I
OL
per port pin: 10 mA
Maximum I
per 8-bit port:
port 0
26 mA
ports 1–3
15 mA
Maximum Total I
OL
for
all output pins
71 mA
If I
exceeds the test conditions, V
may exceed the related specification. Pins are not guaranteed
to sink current greater than the listed test conditions.
Capacitive loading on ports 0 and 2 may cause spurious noise pulses above 0.4 V on the low-level
outputs 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 high to low. In applications where capacitive
loading exceeds 100 pF, the noise pulses on these signals may exceed 0.8 V. It may be desirable to
qualify ALE or other signals with a Schmitt trigger or CMOS-level input logic.
Capacitive loading on ports 0 and 2 causes the V
OH
on ALE and PSEN# to drop below the specifica-
tion when the address lines are stabilizing.
Typical values are obtained using V
CC
= 5.0, T
A
= 25°C and are not guaranteed.
2.
3.
4.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| P83C251SB16 | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:HIGH-PERFORMANCE CHMOS MICROCONTROLLER |
| P83C251SP16 | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:HIGH-PERFORMANCE CHMOS MICROCONTROLLER |
| P83C251SQ16 | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:HIGH-PERFORMANCE CHMOS MICROCONTROLLER |
| P83C251TB24 R OM | 制造商:Intel 功能描述: |
| P83C266 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Microcontrollers for PAL/SECAM TV with OSD and VST |
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