S3C821A データシートの表示（PDF） - Samsung

部品番号

コンポーネント説明

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S3C821A

S3C8-SERIES MICROCONTROLLES

Samsung 

S3C821A/P821A

PRODUCT OVERVIEW

Table 1-1. S3C821A Pin Descriptions (Continued)

Pin

Names

VSS1, VDD1

XOUT, XIN

TEST

XTIN, XTOUT

RESET

INT0–INT3

T0CK

T1CK

TA

TB

T0

T0PWM

T0CAP

ADC0–ADC3

AVREF, AVSS

INT4–INT11

BUZ

SCK, SI, SO

VLC1

VSS2, VDD2

COM0–COM3

SEG0–SEG3

(COM4–COM7)

SEG4–SEG15

Pin

Type

Pin

Description

Circuit

Type

– Power input pins for internal power block –

– Main oscillator pins

–

– Chip test input pin

–

Hold GND when the device is operating

– Sub oscillator pins for sub-system clock

–

I RESET signal input pin. Schmitt trigger

input with internal pull-up resistor.

I/O External interrupts input with noise filter.

I/O 8Bit Timer 0 external clock input.

I/O Timer 1/A external clock input.

I/O Timer 1/A clock output

I/O Timer B clock output

I/O Timer 0 clock output

I/O Timer 0 PWM output

I/O Timer 0 capture input

I/O Analog input pins for A/D converts

module

– A/D converter reference voltage and

ground

I/O External interrupts input with noise filter.

I/O Buzzer signal output

I/O Serial clock, serial data input, serial data

output

– LCD bias voltage input pins

B

D-4

D-4

D-4

D-4

D-4

D-4

D-4

D-4

F-16

–

E-4

D-4

D-4

–

– Power input pins for external power block –

O LCD Common signal output

H-30

O LCD Common or Segment signal output H-31

O LCD segment signal output

H-29

Pin

Numbers (note)

10, 11 (12, 13)

12, 13 (14, 15)

14 (16)

15, 16 (17,18)

17 (19)

20–23 (22–25)

20 (22)

21 (23)

22 (24)

23 (25)

33 (35)

33 (35)

33 (35)

25–28 (27–30)

24, 29 (26, 31)

34–41 (36–43)

45 (47)

42–44 (44–46)

49 (51)

50, 51 (52, 53)

52–55 (54–57)

56–59 (58–61)

60–71 (62–73)

NOTE: Parentheses indicate pin number for 80-QFP package.

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Pins

–

–

–

–

–

P2.4–P2.7

P2.4

P2.5

P2.6

P2.7

P3.7

P3.7

P3.7

P3.0–P3.3

–

P4.0–P4.7

P5.3

P5.0–P5.2

–

–

–

–

–

1-7

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