Samsung S3C7414, S3C7424, S3C7434, S3P7414, S3P7424 Datasheet

S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

1 PRODUCT OVERVIEW

OVERVIEW

The S3C7414/C7424/C7434 single-chip CMOS microcontroller has been designed for very high performance
using Samsung's newest 4-bit CPU core, SAM47 (Samsung Arrangeable Microcontroller).

With an A/D converter, LED direct drive pins, an 8-bit serial I/O interface, and an 8-bit timer/counter, the
S3C7414/C7424/C7434 offers you an excellent design solution for a wide variety of home appliance applications
— electric fans, cookers, boilers, and air conditioners, for example.

Up to 35 pins of the 42-pin SDIP or 44-pin QFP package can be dedicated to I/O. Seven vectored interrupts
provide fast response to internal and external events.

In addition, the S3C7414/C7424/C7434's advanced CMOS technology provides for low power consumption and a
wide operating voltage range.

OTP

The S3C7414/C7424/C7434 microcontroller is also available in OTP (One Time Programmable) version,
S3P7414/P7424/P7434. S3P7414/P7424/P7434 microcontroller has an on-chip 4-Kbyte one-time-programmable
EPROM instead of masked ROM. The S3P7414/P7424/P7434 is comparable to S3C7414/C7424/C7434, in
function, in D.C. electrical characteristics and in pin configuration.

DEVELOPMENT SUPPORT

The Samsung Microcontroller Development System, SMDS, provides you with a complete PC-based develop­ment environment for S3C7-series microcontrollers that is powerful, reliable, and portable. In addition to its
window-based program development structure, the SMDS toolset includes versatile debugging, trace, instruction
timing, and performance measurement applications.

The Samsung Generalized Assembler (SAMA) has been designed specifically for the SMDS environment and
accepts assembly language sources in a variety of microprocessor formats. SAMA generates industry-standard
hex files that also contain program control data for SMDS compatibility.

1-1

PRODUCT OVERVIEW S3C7414/P7414/C7424/P7424/C7434/P7434

FEATURES SUMMARY

Memory

• 256 × 4-bit RAM

• 4,096 × 8-bit ROM

35 I/O Pins

• I/O: 31 pins including 8 LED direct drive pins
(S3C7414/C7434)
18 pins including 8 LED direct drive pins
(S3C7424)

• Input only: 4 pins

A/D Converter

• 6-channel with 8-bit resolution

• 22.89 µs conversion speed at 4.19 MHz

Basic Timer

• One 8-bit basic timer

• Watchdog timer functions

• Four interval clock selection

Timer/Counters

• Two 8-bit timer/counter (TC0, TC1)

• Programmable 8-bit timer

• External event counter

• Arbitrary clock frequency output

• PWM output mode (TC1)

Watch Timer

• One watch timer 8-bit

• Time interval generation: 0.5 s, 3.9 ms at

4.19 MHz

• Four frequency outputs to BUZ pin

Built-in reset circuit (S3C7434 only)

• Built-in power-on reset circuit

Interrupts

• Five internal vectored interrupts
(INTB, INTT0, INTT1, INTS, INTAD)

• Three external vectored interrupts
(INT0, INT1, INT4)

• Two quasi-interrupts (INT2, INTW)

Bit Sequential Carrier

• Supports 16-bit serial data transfer in
arbitrary format

Memory-Mapped I/O Structure

• Data memory bank 15

Two Power-Down Modes

• Idle mode (only CPU clock stops)

• Stop mode (system oscillation stops)

Oscillation Sources

• Crystal, Ceramic, or RC for system clock

• Crystal, Ceramic: 0.4–6.0 MHz

• RC: 4 MHz (typ)

• CPU clock divider circuit (by 4, 8, or 64)

Instruction Execution Times

• 0.95, 1.91, 15.3 µs at 4.19 MHz

• 0.67, 1.33, 10.7 µs at 6.0 MHz

Operating Temperature

• – 40 °C to 85 °C

8-bit Serial I/O Interface

• 8-bit transmit/receive mode

• 8-bit receive mode

• LSB-first or MSB-first transmission selectable

• Internal or external clock source

1-2

Operating Voltage Range

• 1.8 V to 5.5 V (S3C7414/C7424)

• 2.5 V to 5.5 V (S3C7434)

Package Type

• 42-pin SDIP, 44-pin QFP (S3C7414/C7434)
30-pin SDIP, 28-pin SOP (S3C7424)

S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

Table 1-1. Comparision Table

Feature S3C7414 S3C7424 S3C7434

Core SAM47 SAM47 SAM47
ROM 4 K bytes Same Same
RAM 256 nibbles Same Same
I/O 35 (4 input only) 21 (3 input only) 35 (4 input only)
POR

(1)

None None Built in/ Typ: 2.0 V
SIO 8-bit SIO x 1 Same Same
Timer0 8-bit timer/counter Same Same
Timer1(PWM) 8-bit timer/counter

Same Same

(8-bit PWM x 1)
Watchdog timer Watch-dog

Same Same

4 selectable interval
ADC 8-bit x 6 8-bit x 4 8-bit x 6
AV

SS

Interrupt External x 3

(2)

None

Internal x 5

Quasi x 2 (KS0–KS3)

Same Same
External x 2

Internal x 5
Quasi x 1 ( – )

External x 3
Internal x 5

Quasi x 2 (KS0–KS3)
Power down Stop/Idle Same Same
Oscillator Crystal, Ceramic, RC Same Same
Operating frequency 0.4–6 MHz Same Same
Operating voltage 1.8–5.5 V 1.8–5.5 V 2.5–5.5 V
OTP/MTP OTP Same Same
Package 42SDIP/44QFP 30SDIP/28SOP 42SDIP/44QFP

NOTES

1. POR (power on reset)/Typ 2.0 V low voltage detector.

2. Internal A/D converter ground (bonded to VSS internally)

1-3

PRODUCT OVERVIEW S3C7414/P7414/C7424/P7424/C7434/P7434

BLOCK DIAGRAM

INT0, INT1, INT2,INT4

COUNTER 0

COUNTER 1

P4.0-4.3

P5.0-5.3

P6.0/KS0
P6.1/KS1
P6.2/KS2
P6.3/KS3

P7.0-7.3 I/O PORT 7

P8.0/TCL0

P8.1/TCLO0

P8.2

I/O PORT 4

I/O PORT 5

I/O PORT 6

I/O PORT 8 I/O PORT 3

8-BIT

TIMER/

8-BIT

TIMER/

RESET

INTERRUPT

CONTROL

BLOCK

INTERNAL

INTERRUPTS

INSTRUCTION DECODER

ARITHMETIC

LOGIC UNIT

256 x 4-BIT

DATA

MEMORY

X

AND

INXOUT

CLOCK

BASIC

TIMER

INSTRUCTION

REGISTER

PROGRAM
COUNTER

PROGRAM

STATUS WORD

STACK

POINTER

4 K BYTE

PROGRAM

MEMORY

WATCH

TIMER

I/O PORT 2

I/O PORT 0

SERIAL

I/O

INPUT

PORT 1

I/O PORT 2

A/D

CONVERTER

P0.0/

SCK

P0.1/SO
P0.2/SI
P0.3/BUZ

P1.0/INT0
P1.1/INT1
P1.2/INT2
P1.3/INT4

P2.0-P2.3/
AD0-AD3

AV

REF

P3.0/AD4
P3.1/AD5
P3.2/CLO/TCL1
P3.3/PWM / TCLO1

1-4

Figure 1-1. S3C7414/C7424/C7434Simplified Block Diagram

S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

PIN ASSIGNMENTS

P2.0/AD0
P2.1/AD1
P2.2/AD2
P2.3/AD3
P3.0/AD4
P3.1/AD5

AVREF

P3.2/CLO/TCL1

P3.3/PWM/TCLO1

P4.0

VDD

VSS

XOUT

XIN

TEST

P4.1
P4.2

RESET

P4.3
P5.0
P5.1

Figure 1-2. S3C7414 Pin Assignment (42-SDIP)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

S3C7414

(42-SDIP)

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

P8.2
P8.1/TCLO0
P8.0/TCL0
P7.3
P7.2
P7.1
P7.0
P6.3/KS3
P6.2/KS2
P6.1/KS1
P6.0/KS0
P1.3/INT4
P1.2/INT2
P1.1/INT1
P1.0/INT0
P0.3/BUZ
P0.2/SI
P0.1/SO
P0.0/SCK
P5.3
P5.2

1-5

PRODUCT OVERVIEW S3C7414/P7414/C7424/P7424/C7434/P7434

NC

P3.1/AD5

P3.0/AD4

P2.3/AD3

P2.2/AD2

P2.1/AD1

P2.0/AD0

P8.2

P8.1/TCLO0

P8.0/TCL0

P7.3

AVREF

P3.2/CLO/TCL1

P3.3/PWM/TCLO1

P4.0

VDD
VSS

XOUT

XIN

TEST

P4.1
P4.2

Figure 1-3. S3C7414 Pin Assignment (44-QFP)

4443424140393837363534

1
2
3
4
5
6
7
8
9
10
11

S3C7414

(44-QFP)

1213141516171819202122

P4.3

P5.0

P5.1

P5.2

P5.3

RESET

P0.0/SCK

P0.2/SI

P0.1/SO

P0.3/BUZ

NC

33
32
31
30
29
28
27
26
25
24
23

P7.2
P7.1
P7.0
P6.3/KS3
P6.2/KS2
P6.1/KS1
P6.0/KS0
P1.3/INT4
P1.2/INT2
P1.1/INT1
P1.0/INT0

1-6

S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

VSS

XOUT

XIN

TEST

P4.1
P4.2

RESET

NC
P4.3
P5.0
P5.1
P5.2
P5.3

P0.0/SCK

P0.1/SO

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

S3C7424

(30-SDIP)

30
29
28
27
26
25
24
23
22
21
20
19
18
17
16

VDD
P4.0
P3.3/PWM/TCLO1
P3.2/CLO/TCL1
AVREF
NC
P2.3/AD3
P2.2/AD2
P2.1/AD1
P2.0/AD0
P1.2/INT2
P1.1/INT1
P1.0/INT0
P0.3/BUZ
P0.2/SI

Figure 1-4. S3C7424 Pin Assignment (30-SDIP)

VSS

XOUT

XIN

TEST

P4.1
P4.2

RESET

P4.3
P5.0
P5.1
P5.2
P5.3

P0.0/SCK

P0.1/SO

1
2
3
4
5
6
7
8
9
10
11
12
13
14

S3C7424

(28-SOP)

28
27
26
25
24
23
22
21
20
19
18
17
16
15

VDD
P4.0
P3.3/PWM/TCLO1
P3.2/CLO/TCL1
AVREF
P2.3/AD3
P2.2/AD2
P2.1/AD1
P2.0/AD0
P1.2/INT2
P1.1/INT1
P1.0/INT0
P0.3/BUZ
P0.2/SI

Figure 1-5. S3C7424 Pin Assignment (28-SOP)

1-7

PRODUCT OVERVIEW S3C7414/P7414/C7424/P7424/C7434/P7434

P2.0/AD0
P2.1/AD1
P2.2/AD2
P2.3/AD3
P3.0/AD4
P3.1/AD5

AVREF

P3.2/CLO/TCL1

P3.3/PWM/TCLO1

P4.0

VDD

VSS

XOUT

XIN

TEST

P4.1
P4.2

RESET

P4.3
P5.0
P5.1

Figure 1-6. S3C7434 Pin Assignment (42-SDIP)

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

S3C7434

(42-SDIP)

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22

P8.2
P8.1/TCLO0
P8.0/TCL0
P7.3
P7.2
P7.1
P7.0
P6.3/KS3
P6.2/KS2
P6.1/KS1
P6.0/KS0
P1.3/INT4
P1.2/INT2
P1.1/INT1
P1.0/INT0
P0.3/BUZ
P0.2/SI
P0.1/SO
P0.0/SCK
P5.3
P5.2

1-8

S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

NC

P3.1/AD5

P3.0/AD4

P2.3/AD3

P2.2/AD2

P2.1/AD1

P2.0/AD0

P8.2

P8.1/TCLO0

P8.0/TCL0

P7.3

AVREF

P3.2/CLO/TCL1

P3.3/PWM/TCLO1

P4.0

VDD

VSS

XOUT

XIN

TEST

P4.1
P4.2

Figure 1-7. S3C7434 Pin Assignment (44-QFP)

4443424140393837363534

1
2
3
4
5
6
7
8
9
10
11

S3C7434

(44-QFP)

1213141516171819202122

P4.3

P5.0

P5.1

P5.2

P5.3

RESET

P0.0/SCK

P0.2/SI

P0.1/SO

P0.3/BUZ

NC

33
32
31
30
29
28
27
26
25
24
23

P7.2
P7.1
P7.0
P6.3/KS3
P6.2/KS2
P6.1/KS1
P6.0/KS0
P1.3/INT4
P1.2/INT2
P1.1/INT1
P1.0/INT0

1-9

PRODUCT OVERVIEW S3C7414/P7414/C7424/P7424/C7434/P7434

PIN DESCRIPTIONS

Table 1-2. S3C7414/C7434 Pin Descriptions

Pin Name Pin Type Description Number Share Pin

P0.0
P0.1
P0.2
P0.3

P1.0
P1.1
P1.2
P1.3

P2.0
P2.1
P2.2
P2.3

P3.0
P3.1
P3.2
P3.3

P4.0
P4.1
P4.2
P4.3
P5.0–P5.3

P6.0–P6.3
P7.0–P7.3
P8.0

P8.1
P8.2

I/O 4-bit I/O port.

1-bit or 4-bit read/write and test is possible.
Individual pins are software configurable as input or
output.

24 (18)
25 (19)
26 (20)

27 (21)
4-bit pull-up resistors are software assignable; pull-up
resistors are automatically disabled for output pins.

I 4-bit input port.

1-bit and 4-bit read and test is possible.
3-bit pull-up resistors are individually assignable by
software to pins P1.0, P1.1, and P1.2.

I/O 4-bit I/O port.

N-channel open-drain output.
1-bit or 4-bit write and test is possible.
Individual pins are software configurable as AD input

28 (23)

29 (24)

30 (25)

31 (26)

1 (38)
2 (39)
3 (40)

4 (41)
or output.
4-bit pull-up resistors are software assignable; pull-up
resistors are automatically disabled for output pins.

I/O Same as Port 0 (P0.0–P0.3) 5 (42)

6 (43)

8 (2)
9 (3)

I/O 4-bit I/O ports.

Ports 4 and 5 can be configured individually as n­channel open-drain or as CMOS push-pull output by
software.
1-bit and 4-bit read/write and test is possible.
Ports 4 and 5 can be paired to enable 8-bit data

10 (4)

16 (10)
17 (11)
19 (13)

20–23

(14–17)
transfer.
4-bit pull-up resistors are software assignable; pull-up
resistors are automatically disabled for output pins.

I/O Same as Port 0 except port 8 is a 3-bit I/O port 32–35

(27–30)

36–39

(31–34)

40 (35)
41 (36)
42 (37)

SCK

SO

SI

BUZ

INT0
INT1
INT2
INT4

AD0
AD1
AD2
AD3

AD4
AD5

CLO/TCL1

PWM/TCLO1

–

KS0–KS3

–

TCL0

TCLO0

–

1-10

S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

Table 1-2. S3C7414/C7434 Pin Descriptions (Continued)

Pin Name Pin Type Description Number Share Pin

SCK

I/O Serial I/O interface clock signal 24 (18) P0.0

SO I/O Serial data output 25 (19) P0.1
SI I/O Serial data input 26 (20) P0.2
BUZ I/O 2 kHz, 4kHz, 8kHz, or 16 kHz frequency output at the

27 (21) P0.3

watch timer clock frequency of 32.768 kHz

INT0, INT1 I External interrupts. The triggering edge for INT0 and

INT1 is selectable. Only INT0 is synchronized with the

28–29

(23–24)

P1.0, P1.1

system clock.
INT2 I Quasi-interrupt input with rising edge detection 30 (25) P1.2
INT4 I External interrupts with detection of rising and falling

31 (26) P1.3

edges
AD0–AD3

I/O A/D converter analog inputs 1–4

P2.0–P2.3

(38–41)

AD4–AD5

5–6

P3.0–P3.1

(42–43)
TCL0 I/O External clock input for timer/counter0 40 (35) P8.0
TCLO0 I/O Timer/counter clock output 41 (36) P8.1
CLO I/O Clock output 8 (2) P3.2
TCL1 I/O External clock input for timer/counter1 8 (2) P3.2
PWM I/O PWM output 9 (3) P3.3
TCLO1 I/O Timer/counter clock output1 9 (3) P3.3
KS0–KS3 I/O Quasi-interrupt input with falling edge detection 32–35

P6.0–P6.3

(27–30)
V

DD

V

SS

RESET

XIN, X

out

AV

REF

TEST I

– Main power supply 11 (5) –
– Ground 12 (6) –

I Reset signal 18 (12) –

– Crystal, ceramic, or RC oscillator signal for system

clock.

14, 13

(8, 7)

– A/D converter analog reference voltage 7 (1) –

Test signal input (must be connected to V

SS

)

15 (9) –

–

NC – No connection (no bonding pin) (22, 44) –

NOTE: Parentheses indicate 44-QFP pin number.

1-11

PRODUCT OVERVIEW S3C7414/P7414/C7424/P7424/C7434/P7434

Table 1-3. S3C7424 Pin Descriptions

Pin Name Pin Type Description Number Share Pin

P0.0
P0.1
P0.2
P0.3

P1.0
P1.1
P1.2

P2.0
P2.1
P2.2
P2.3

P3.2
P3.3

P4.0
P4.1
P4.2
P4.3

P5.0–P5.3

I/O 4-bit I/O port.

1-bit or 4-bit read/write and test is possible.
Individual pins are software configurable as input or
output.

14 (13)
15 (14)
16 (15)

17 (16)
4-bit pull-up resistors are software assignable; pull-up
resistors are automatically disabled for output pins.

I 4-bit input port.

1-bit and 4-bit read and test is possible.
3-bit pull-up resistors are individually assignable by

18 (17)

19 (18)

20 (19)
software to pins P1.0, P1.1, and P1.2.

I/O 4-bit I/O port.

N-channel open-drain output.
1-bit or 4-bit write and test is possible.
Individual pins are software configurable as AD input

21 (20)

22 (21)

23 (22)

24 (23)
or output.
4-bit pull-up resistors are software assignable; pull-up
resistors are automatically disabled for output pins.

I/O Same as Port 0 (P0.0–P0.3) 27 (25)

28 (26)

I/O 4-bit I/O ports.

Ports 4 and 5 can be configured individually as n­channel open-drain or as CMOS push-pull output by
software.

29 (27)

5 (5)
6 (6)

9 (8)
1-bit and 4-bit read/write and test is possible.
Ports 4 and 5 can be paired to enable 8-bit data
transfer.

10–13

(9–12)
4-bit pull-up resistors are software assignable; pull-up
resistors are automatically disabled for output pins.

SCK

SO

SI

BUZ

INT0
INT1
INT2

AD0
AD1
AD2
AD3

CLO/TCL1

PWM/TCLO1

–

1-12

S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

Table 1-3. S3C7424 Pin Descriptions (Continued)

Pin Name Pin Type Description Number Share Pin

SCK

I/O Serial I/O interface clock signal 14 (13) P0.0

SO I/O Serial data output 15 (14) P0.1
SI I/O Serial data input 16 (15) P0.2
BUZ I/O 2 kHz, 4kHz, 8kHz, or 16 kHz frequency output at the

17 (16) P0.3

watch timer clock frequency of 32.768 kHz

INT0, INT1 I External interrupts. The triggering edge for INT0 and

INT1 is selectable. Only INT0 is synchronized with the

18, 19

(17, 18)

P1.0, P1.1

system clock.
INT2 I Quasi-interrupt input with rising edge detection 20 (19) P1.2
AD0–AD3 I/O A/D converter analog inputs 21–24

P2.0–P2.3

(20–23)
CLO I/O Clock output 27 (25) P3.2
TCL1 I/O External clock input for timer/counter1 27 (25) P3.2
PWM I/O PWM output 28 (26) P3.3
TCLO1 I/O Timer/counter clock output1 28 (26) P3.3
V

DD

V

SS

RESET

XIN, X

OUT

AV

REF

TEST I

– Main power supply 30 (28) –
– Ground 1 (1) –

I Reset signal 7 (7) –

– Crystal, ceramic, or RC oscillator signal for system

clock.

3, 2

(3, 2)

– Internal A/D converter analog reference voltage 26 (24) –

Test signal input (must be connected to V

SS

)

4 (4) –

–

NC – No connection (no bonding pin) 8, 25 –

NOTE: Parentheses indicate 28-SOP pin number.

1-13

PRODUCT OVERVIEW S3C7414/P7414/C7424/P7424/C7434/P7434

Table 1-4. Overview of S3C7414/C7424/C7434Pin Data

Pin Names Share Pins I/O Type Reset Value Circuit Type

P0.0–P0.3
P1.0

P1.1
P1.2

SCK, SO, SI, BUZ

(note)

INT0

(note)

INT1

(note)

INT2

I/O Input Type D

I Input Type A-1

P1.3 INT4 I Input Type A
P2.0–P2.3 AD0–AD3 I/O AD input Type F-3
P3.0

P3.1
P3.2
P3.3

P4.0–P4.3

AD4

I/O Input Type F

AD5

CLO/TCL1

TCLO1/PWM

– I/O Input Type E

Type F
Type D
Type D

P5.0–P5.3
P6.0

P6.1
P6.2
P6.3

KS0
KS1
KS2
KS3

(note)
(note)
(note)
(note)

P7.0–P7.3 –

(note)

P8.0
P8.1
P8.2

VDD, V
XIN, X

RESET

AV

REF

SS

OUT

TCL0

TCLO0

–
– – – –

– – – –
–

– –

TEST – I –

I/O

I/O
I/O

I –

Input

Input
Input

Type B-2

– –

Type D

Type D
Type D

(note)

–

NC – – – –

NOTE: A noise filter circuit is built-in.

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S3C7414/P7414/C7424/P7424/C7434/P7434 PRODUCT OVERVIEW

PIN CIRCUIT DIAGRAMS

V

DD

V

DD

P-CHANNEL

IN

N-CHANNEL

Figure 1-8. Pin Circuit Type A

V

DD

PULL-UP
RESISTOR
ENABLE

DATA

1M

Ω

RESET

7pF

Figure 1-10. Pin Circuit Type B-2

V

DD

P-CHANNEL

OUT

IN

CIRCUIT TYPE A

Figure 1-9. Pin Circuit Type A-1

N-CHANNEL

OUTPUT
DISABLE

Figure 1-11. Pin Circuit Type C

1-15