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參數(shù)資料
| 型號： | SC80C51BCGB44 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CMOS single-chip 8-bit microcontrollers |
| 中文描述： | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP44 |
| 文件頁數(shù)： | 12/30頁 |
| 文件大?。?/td> | 411K |
| 代理商： | SC80C51BCGB44 |
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Philips Semiconductors
Product specification
80C31/80C51/87C51
CMOS single-chip 8-bit microcontrollers
1996 Aug 16
12
DC ELECTRICAL CHARACTERISTICS FOR PHILIPS NORTH AMERICA DEVICES (SC80C31 AND SC80C51)
T
amb
= 0
°
C to +70
°
C or –40
°
C to +85
°
C, V
CC
= 5V
±
10%; V
SS
= 0V
SYMBOL
PARAMETER
TEST
CONDITIONS
LIMITS
UNIT
MIN
TYP
1
MAX
V
IL
Input low voltage
4.5V < V
CC
< 5.5V
–0.5
0.2V
CC
–0.1
V
V
IH
Input high voltage (ports 0, 1, 2, 3, EA)
0.2V
CC
+0.9
V
CC
+0.5
V
V
IH1
Input high voltage, XTAL1, RST
0.7V
CC
V
CC
+0.5
V
V
OL
Output low voltage, ports 1, 2, 3
8
V
CC
= 4.5V
I
OL
2
0.4
V
V
OL1
Output low voltage, port 0, ALE, PSEN
8, 7
V
CC
= 4.5V
I
OL
2
0.4
V
V
OH
Output high voltage, ports 1, 2, 3
3
V
CC
= 4.5V
I
OH
= –30
μ
A
V
CC
– 0.7
V
V
OH1
Output high voltage (port 0 in external bus mode),
ALE
9
, PSEN
3
V
CC
= 4.5V
I
OH
V
CC
– 0.7
V
I
IL
Logical 0 input current, ports 1, 2, 3
V
IN
= 0.4V
–1
–50
μ
A
I
TL
Logical 1-to-0 transition current, ports 1, 2, 3
6
V
IN
= 2.0V
See note 4
–650
μ
A
I
LI
Input leakage current, port 0
0.45 < V
IN
< V
CC
– 0.3
±
10
μ
A
I
CC
Power supply current (see Figure 8):
Active mode @ 16MHz
5
Idle mode @ 16MHz
5
Power-down mode
See note 5
T
amb
= 0 to +70
°
C
T
amb
= –40 to +85
°
C
11.5
1.3
3
32
5
50
75
μ
A
μ
A
μ
A
μ
A
R
RST
Internal reset pull-down resistor
40
225
k
C
IO
NOTES:
1. Typical ratings are not guaranteed. The values listed are at room temperature, 5V.
2. Capacitive loading on ports 0 and 2 may cause spurious noise 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 transitions during bus operations. In the
worst cases (capacitive loading > 100pF), the noise pulse on the ALE pin may exceed 0.8V. In such cases, it may be desirable to qualify
ALE with a Schmitt Trigger, or use an address latch with a Schmitt Trigger STROBE input. I
OL
can exceed these conditions provided that no
single output sinks more than 5mA and no more than two outputs exceed the test conditions.
3. Capacitive loading on ports 0 and 2 may cause the V
OH
on ALE and PSEN to momentarily fall below the (V
CC
–0.7) specification when the
address bits are stabilizing.
4. Pins of ports 1, 2 and 3 source a transition current when they are being externally driven from 1 to 0. The transition current reaches its
maximum value when V
is approximately 2V.
5. See Figures 9 through 12 for I
CC
test conditions.
Active Mode:
I
CC
= 1.5
×
FREQ + 8.0;
Idle Mode:
I
CC
= 0.14
×
FREQ +2.31; See Figure 8.
6. This value applies to T
amb
= 0
°
C to +70
°
C. For T
amb
= –40
°
C to +85
°
C, I
TL
= –750
μ
A.
7. Load capacitance for port 0, ALE, and PSEN = 100pF, load capacitance for all other outputs = 80pF.
8. Under steady state (non-transient) conditions, I
OL
must be externally limited as follows:
Maximum I
OL
per port pin:
15mA (*NOTE: This is 85
°
C specification.)
Maximum I
OL
per 8-bit port:
26mA
Maximum total I
OL
for all outputs:
71mA
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.
9. ALE is tested to V
OH1
, except when ALE is off then V
OH
is the voltage specification.
10.Pin capacitance is characterized but not tested. Pin capacitance is less than 25pF. Pin capacitance of ceramic package is less than 15pF
(except EA it is 25pF).
Pin capacitance
10
(except EA)
15
pF
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