S3C1850 datasheet(5/91 Pages) SAMSUNG

Part #	S3C1850

Description	4-bit single-chip CMOS microcontroller

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Manufacturer	SAMSUNG [Samsung semiconductor]

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S3C1840

1-4

PIN CONFIGURATION (20 DIP, 20 SOP)

VSS

XI

XO

P0.0

P0.1

P0.2

P0.3

P1.0

P1.1

P3.3

S3C1840

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

VDD

P2.0/REM

TEST

P2.1

P2.2

P2.3

P2.4

P3.0

P3.1

P3.2

Figure 1-3. Pin Configuration (20 DIP, 20 SOP)

Table 1-2. Pin Description for 20 Pins

Name

Number

Type

Description

I/O Circuit

Type

P0.0-P0.3

4, 5, 6, 7

Input

4-bit input port when P2.13 is low

A

P1.0-P1.1

8, 9

Input

2-bit input port when P2.13 is high

A

P2.0/REM

19

Output

1-bit individual output for remote carrier

frequency (1)

B

P2.2-P2.4

16, 15, 14

Output

1-bit individual output port

C

P2.1

17

D

P3.0-P3.3

13, 12, 11, 10

Output

4-bit parallel output port

C

TEST

18

Input

Input pin for test (Normally connected to V

SS)

–

X

I

2

Input

Oscillation clock input

–

X

O

3

Output

Oscillation clock output

–

V

DD

20

–

Power supply

–

V

SS

1

–

Ground

–

NOTES:

1.

The carrier can be selected by software as fxx/12 (1/3 duty), fxx/12 (1/4 duty), fxx/8 (1/2 duty), or no-carrier

frequency.

2

Package type can be selected as 20 DIP, or 20 SOP in the ordering sheet.

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