參數(shù)資料
型號： P83C748EBAA
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count
中文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC28
封裝： PEDESTAL, PLASTIC, SOT-261-3, LCC-28
文件頁數(shù)： 5/18頁
文件大?。?/td> 131K
代理商： P83C748EBAA
Philips Semiconductors
Preliminary specification
83C748/87C748
80C51 8-bit microcontroller family
2K/64 OTP/ROM, low pin count
1999 Apr 15
5
DC ELECTRICAL CHARACTERISTICS
T
amb
= 0
°
C to +70
°
C, V
CC
= 5V
±
10%, V
SS
= 0V
1
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
MIN
MAX
V
IL
V
IH
V
IH1
Input low voltage
Input high voltage, except X1, RST
Input high voltage, X1, RST
–0.5
0.2V
DD
–0.1
V
CC
+0.5
V
CC
+0.5
V
V
V
0.2V
CC
+0.9
0.7V
CC
P0.2
Input low voltage
Input high voltage
V
IL1
V
IH2
–0.5
0.7V
CC
0.3V
CC
V
CC
+0.5
V
V
V
OL
V
OL1
Output low voltage, ports 1 and 3
Output low voltage, port 0.2
I
OL
= 1.6mA
2
I
OL
= 3.2mA
2
0.45
0.45
V
V
V
OH
Output high voltage, ports 1 and 3
I
OH
= –60
μ
A
I
OH
= –25
μ
A
I
OH
= –10
μ
A
2.4
V
V
V
0.75V
CC
0.9V
CC
Port 0.0 and 0.1 – Drivers
Output low voltage
Driver, receiver combined:
Capacitance
V
OL2
I
OL
= 3mA
(over V
CC
range)
0.4
V
C
10
pF
I
IL
I
TL
I
LI
R
RST
Logical 0 input current, ports 1 and 3
Logical 1 to 0 transition current, ports 1 and 3
3
Input leakage current, port 0
V
IN
= 0.45V
V
IN
= 2V (0 to 70
°
C)
0.45 < V
IN
< V
CC
–50
–650
±
10
μ
A
μ
A
μ
A
Internal pull-down resistor
25
175
k
C
IO
Pin capacitance
Test freq = 1MHz,
T
amb
= 25
°
C
V
CC
= 2 to V
CC
max
V
= 0V
V
CC
= 5V
±
10%
T
amb
= 21
°
C to 27
°
C
10
pF
I
PD
Power-down current
4
50
μ
A
V
PP
V
PP
program voltage (for 87C748 only)
12.5
13.0
V
I
PP
I
CC
NOTES:
1. Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to V
SS
unless otherwise
noted.
2. Under steady state (non-transient) conditions, I
OL
must be externally limited as follows:
Maximum I
OL
per port pin:
10mA
Maximum I
OL
per 8-bit port:
26mA
Maximum total I
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.
3. Pins of ports 1 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.
4. Power-down I
CC
is measured with all output pins disconnected; port 0 = V
CC
; X2, X1 n.c.; RST = V
SS
.
5. Active I
is measured with all output pins disconnected; X1 driven with t
CLCH
, t
CHCL
= 5ns, V
IL
= V
SS
+ 0.5V, V
IH
= V
CC
– 0.5V; X2 n.c.;
RST = port 0 = V
CC
. I
CC
will be slightly higher if a crystal oscillator is used.
6. Idle I
is measured with all output pins disconnected; X1 driven with t
CLCH
, t
CHCL
= 5ns, V
IL
= V
SS
+ 0.5V, V
IH
= V
CC
– 0.5V; X2 n.c.;
port 0 = V
CC
; RST = V
SS
.
Program current (for 87C748 only)
V
PP
= 13.0V
50
mA
Supply current (see Figure 2)
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