4

83C51KB HIGH PERFORMANCE KEYBOARD MICROCONTROLLER

Figure 2. 83C51KB 40-pin DIP Diagram

Table 2. 83C51KB Nomenclature Definitions

Parameter

Options

Description

Temperature and Burn-in

Options

no mark

Commercial operating temperature range (0°C to 70°C) with

Intel standard burn-in.

Packaging Options

P

Plastic Dual-in-line Package (PDIP)

Program Memory Options

3

Factory programmed ROM

Process Information

C

CHMOS

Product Family

51

MCS 51 Compatible Product Family

Device Memory Options

KB

128 bytes RAM

4 Kbytes ROM

Device Speed

no mark

4-6 MHz

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

P83C51KB

View of

component

as mounted

on PC board

A4248-01

P1.0/KSI0

P1.1/KSI1

P1.2/KSI2

P1.3/KSI3

P1.4/KSI4

P1.5/KSI5

P1.6/KSI6

P1.7/KSI7

RST

P3.0/DATA

P3.1

P3.2/CLK0/INT0#

P3.3/CLK1/INT1#

P3.4/LED0/T0

P3.5/LED1

P3.6/LED2/WR#

P3.7/LED3/RD#

NC

RCIN

VSS

VCC

P0.0/KSO0/AD0

P0.1/KSO1/AD1

P0.2/KSO2/AD2

P0.3/KSO3/AD3

P0.4/KSO4/AD4

P0.5/KSO5/AD5

P0.6/KSO6/AD6

P0.7/KSO7/AD7

EA#

ALE

PSEN#

P2.7/KSO15/A15

P2.6/KSO14/A14

P2.5/KSO13/A13

P2.4/KSO12/A12

P2.3/KSO11/A11

P2.2/KSO10/A10

P2.1/KSO9/A9

P2.0/KSO8/A8