參數(shù)資料
型號(hào)： SC80C51BCPA44
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, 12 MHz, MICROCONTROLLER, PQCC44
文件頁(yè)數(shù)： 11/30頁(yè)
文件大?。?/td> 411K
代理商： SC80C51BCPA44
Philips Semiconductors
Product specification
80C31/80C51/87C51
CMOS single-chip 8-bit microcontrollers
1996 Aug 16
11
DC ELECTRICAL CHARACTERISTICS
T
amb
= 0
°
C to +70
°
C or –40
°
C to +85
°
C, V
CC
= 5V
±
20%, V
SS
= 0V (PCB80C31/51 and PCF80C31/51) (12, 16, and 24MHz versions)
T
amb
= 0
°
C to +70
°
C or –40
°
C to +85
°
C, V
CC
= 5V
±
10%, V
SS
= 0V (87C51 12, 16, and 24MHz versions) (PCB80C31/51 33MHz version);
For SC87C51 (33MHz only) T
amb
= 0
°
C to +70
°
C, V
CC
= 5V
±
5%
TEST
LIMITS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYPICAL
1
MAX
UNIT
V
IL
Input low voltage, except EA
7
–0.5
0.2V
CC
–0.1
V
V
IL1
V
IH
Input low voltage to EA
7
0
0.2V
CC
–0.3
V
CC
+0.5
V
Input high voltage, except XTAL1, RST
7
0.2V
CC
+0.9
V
V
IH1
V
OL
Input high voltage, XTAL1, RST
7
0.7V
CC
V
CC
+0.5
0.45
V
Output low voltage, ports 1, 2, 3
11
I
OL
= 1.6mA
2
I
OL
= 3.2mA
2
I
OH
= –60
μ
A,
I
OH
= –25
μ
A
I
OH
= –10
μ
A
V
V
OL1
V
OH
Output low voltage, port 0, ALE, PSEN
11
0.45
V
Output high voltage, ports 1, 2, 3, ALE, PSEN
3
2.4
0.75V
CC
0.9V
CC
V
V
V
V
OH1
Output high voltage (port 0 in external bus mode)
I
OH
= –800
μ
A,
I
OH
= –300
μ
A
I
OH
= –80
μ
A
2.4
0.75V
CC
0.9V
CC
V
V
V
I
IL
I
TL
Logical 0 input current, ports 1, 2, 3
7
V
IN
= 0.45V
See note 4
–50
μ
A
Logical 1-to-0 transition current, ports 1, 2, 3
7
–650
μ
A
I
LI
I
CC
Input leakage current, port 0
V
IN
= V
IL
or V
IH
See note 6
±
10
μ
A
Power supply current:
7
Active mode @ 12MHz
8
(Philips)
Active mode @ 12MHz
5
(Philips North America)
Idle mode @ 12MHz
9
(Philips)
Idle mode @ 12MHz (Philips North America)
Power-down mode
10
(Philips and
Philips North America)
11.5
1.3
3
18
19
4.4
4
50
mA
mA
mA
mA
μ
A
R
RST
Internal reset pull-down resistor
(Philips North America)
(Philips)
50
50
300
150
k
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 0.9V
CC
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
IN
is approximately 2V.
5. I
CCMAX
at other frequencies (for Philips North America parts) is given by: Active mode: I
CCMAX
= 1.43 X FREQ + 1.90;
Idle mode: I
CCMAX
= 0.14 X FREQ +2.31, where FREQ is the external oscillator frequency in MHz. I
CCMAX
is given in mA. See Figure 8.
6. See Figures 9 through 12 for I
test conditions.
7. For Philips North America parts when T
amb
= –40
°
C to +85
°
C or Philips parts when T
amb
= –40
°
C to +125
°
C, see DC Electrical
Characteristics table on previous page.
8. The operating supply current is measured with all output pins disconnected; XTAL1 driven with t
r
= t
f
= 10ns; V
IL
= V
SS
+ 0.5V;
V
IH
= V
CC
– 0.5V; XTAL2 not connected; EA = RST = Port 0 = V
CC
.
9. The idle mode supply current is measured with all output pins disconnected; XTAL1 driven with t
r
= t
f
= 10ns; V
IL
= V
SS
+ 0.5V;
V
IH
= V
CC
– 0.5V; XTAL2 not connected; EA = Port 0 = V
CC
; RST = V
SS.
10.The power-down current is measured with all output pins disconnected, XTAL2 not connected, EA = Port 0 = V
CC
; RST = V
SS.
11. Under steady state (non-transient) conditions, I
OL
must be externally limited as follows:
Maximum I
OL
per port pin:
15mA
Maximum I
OL
per 8-bit port:
26mA
Maximum I
total for all outputs:
67mA
If I
exceeds the test condition, V
OL
may exceed the related specification. Pins are not guaranteed to sink current greater than the listed
test conditions.
12.Pin capacitance for the ceramic DIP package is 15pF maximum.
Pin capacitance
12
10
pF
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