P80C552IBA NXP Semiconductors, P80C552IBA Datasheet - Page 12

• Manufacturer Part Number: P80C552IBA
• Description: MCU 8-Bit 80C 80C51 CISC ROMLess 5V 68-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P80C552IBA

• Package: 68PLCC
• Device Core: 80C51
• Family Name: 80C
• Maximum Speed: 24 MHz
• Ram Size: 256 Byte
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: ROMLess
• Number Of Programmable I/os: 40
• Interface Type: I2C/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 3

14. The offset error (OS
15. The gain error (G
16. The absolute voltage error (A
17. This should be considered when both analog and digital signals are simultaneously input to port 5.
Philips Semiconductors
2002 Sep 03
Code
Out
Single-chip 8-bit microcontroller with 10-bit A/D,
capture/compare timer, high-speed outputs, PWM
a straight line which fits the ideal transfer curve. (See Figure 1.)
and the straight line which fits the ideal transfer curve. Gain error is constant at every point on the transfer curve. (See Figure 1.)
ADC and the ideal transfer curve.
1023
1022
1021
1020
1019
1018
7
6
5
4
3
2
1
0
(1)
(2)
(3)
(4)
(5)
Offset
error
OS
e
1
e
) is the relative difference in percent between the straight line fitting the actual transfer curve (after removing offset error),
e
Example of an actual transfer curve.
The ideal transfer curve.
Differential non-linearity (DL
Integral non-linearity (IL
Center of a step of the actual transfer curve.
) is the absolute difference between the straight line which fits the actual transfer curve (after removing gain error), and
2
e
) is the maximum difference between the center of the steps of the actual transfer curve of the non-calibrated
3
e
4
).
e
).
1 LSB
(ideal)
Figure 1. ADC Conversion Characteristic
5
6
(4)
(3)
(5)
7
(2)
12
1018
1019
1 LSB =
(1)
1020
AV
REF+
AV
1024
IN
1021
–
(LSB
AV
ideal
REF–
1022
)
80C552/83C552
1023
Offset
error
OS
e
1024
Gain
error
G
SU01693
e
Product data