Philips Semiconductors
Preliminary specification
80C51 8-bit microcontroller
8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM,
capture/compare, high I/O, low voltage (2.7V–5.5V), low power
P87C552
DC ELECTRICAL CHARACTERISTICS
V
SS
, AV = 0V
SS
LIMITS
UNIT
SYMBOL PARAMETER
TEST CONDITIONS
MIN
MAX
See notes 1 and 2
I
I
I
Supply current operating
Idle mode
16
4
mA
mA
µA
DD
f
= 16MHz
OSC
See notes 1 and 3
= 16MHz
ID
f
OSC
See notes 1 and 4;
2V < V < V max
Power-down current
50
PD
PD
DD
Inputs
V
V
V
V
V
V
Input low voltage, except EA, P1.6, P1.7
Input low voltage to EA
–0.5
–0.5
–0.5
0.2V –0.1
V
V
IL
DD
0.2V –0.3
IL1
IL2
IH
DD
5
Input low voltage to P1.6/SCL, P1.7/SDA
Input high voltage, except XTAL1, RST
Input high voltage, XTAL1, RST
0.3V
V
DD
0.2V +0.9
V
DD
V
DD
+0.5
+0.5
V
DD
0.7V
0.7V
V
IH1
IH2
DD
DD
5
Input high voltage, P1.6/SCL, P1.7/SDA
6.0
V
I
I
Logical 0 input current, ports 1, 2, 3, 4, except P1.6, P1.7
Logical 1-to-0 transition current, ports 1, 2, 3, 4, except P1.6, P1.7
Input leakage current, port 0, EA, STADC, EW
V
= 0.45V
–50
–650
10
µA
µA
µA
IL
TL
IN
See note 6
0.45V < V < V
DD
±I
IL1
IL2
I
0V < V < 6V
0V < V < 5.5V
I
±I
Input leakage current, P1.6/SCL, P1.7/SDA
10
µA
DD
±I
±I
Input leakage current, port 5
0.45V < V < V
DD
1
µA
µA
IL3
I
Input leakage current, ports 1, 2, 3, 4 in high impedance mode
0.45V < V < V
10
IL4
in
DD
Outputs
7
7
7
V
V
V
V
Output low voltage, ports 1, 2, 3, 4, except P1.6, P1.7
Output low voltage, port 0, ALE, PSEN, PWM0, PWM1
Output low voltage, P1.6/SCL, P1.7/SDA
I
I
I
= 1.6mA
= 3.2mA
= 3.0mA
0.4
0.4
0.4
V
V
V
OL
OL
OL
OL
OL1
OL2
OH
Output high voltage, ports 1, 2, 3, 4, except P1.6/SCL, P1.7/SDA
V
= 2.7V
CC
V
CC
– 0.7
V
I
= –20µA
OH
V
= 4.5
CC
V
V
– 0.7
– 0.7
V
V
CC
I
= –30µA
OH
V
V
Output high voltage (port 0 in external bus mode, ALE, PSEN,
PWM0, PWM1)
V
CC
= 2.7V
= –3.2mA
OH1
CC
8
I
OH
Output high voltage (RST)
–I = 400µA
V
V
2.4
0.8V
OH2
OH
–I = 120µA
OH
DD
R
C
Internal reset pull-down resistor
Pin capacitance
40
225
10
kΩ
RST
IO
Test freq = 1MHz,
pF
T
= 25°C
amb
Analog Inputs
AV Analog supply voltage
9
AV = V ±0.2V
2.7
5.5
1.2
50
V
DD
DD
DD
AI
AI
AI
Analog supply current operating
Idle mode
Port 5 = 0 to AV
mA
µA
µA
DD
DD
ID
Power-down mode
2V < AV < AV max
50
PD
PD
DD
62
1999 Mar 30
NXP [ NXP ]
