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S3C7414/P7414/C7424/P7424/C7434/P7434
1 PRODUCT OVERVIEW
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 develop-
ment 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.
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PRODUCT OVERVIEW
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
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
S3C7414/P7414/C7424/P7424/C7434/P7434
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
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)
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S3C7414/P7414/C7424/P7424/C7434/P7434
Table 1-1. Comparision Table
Feature
Core
ROM
RAM
I/O
POR (1)
SIO
Timer0
Timer1(PWM)
Watchdog timer
ADC
AVSS
Interrupt
Power down
Oscillator
Operating frequency
Operating voltage
OTP/MTP
Package
S3C7414
SAM47
4 K bytes
256 nibbles
35 (4 input only)
None
8-bit SIO x 1
8-bit timer/counter
8-bit timer/counter
(8-bit PWM x 1)
Watch-dog
4 selectable interval
8-bit x 6
None (2)
External x 3
Internal x 5
Quasi x 2 (KS0–KS3)
Stop/Idle
Crystal, Ceramic, RC
0.4–6 MHz
1.8–5.5 V
OTP
42SDIP/44QFP
S3C7424
SAM47
Same
Same
21 (3 input only)
None
Same
Same
Same
Same
8-bit x 4
Same
External x 2
Internal x 5
Quasi x 1 ( – )
Same
Same
Same
1.8–5.5 V
Same
30SDIP/28SOP
NOTES
1. POR (power on reset)/Typ 2.0 V low voltage detector.
2. Internal A/D converter ground (bonded to VSS internally)
PRODUCT OVERVIEW
S3C7434
SAM47
Same
Same
35 (4 input only)
Built in/ Typ: 2.0 V
Same
Same
Same
Same
8-bit x 6
Same
External x 3
Internal x 5
Quasi x 2 (KS0–KS3)
Same
Same
Same
2.5–5.5 V
Same
42SDIP/44QFP
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PRODUCT OVERVIEW
BLOCK DIAGRAM
S3C7414/P7414/C7424/P7424/C7434/P7434
INT0, INT1, INT2,INT4
BASIC
TIMER
WATCH
TIMER
8-BIT
TIMER/
COUNTER 0
8-BIT
TIMER/
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 4
I/O PORT 5
I/O PORT 6
I/O PORT 7
RESET
XIN XOUT
INTERRUPT
CONTROL
BLOCK
CLOCK
INTERNAL
INTERRUPTS
INSTRUCTION DECODER
ARITHMETIC
AND
LOGIC UNIT
INSTRUCTION
REGISTER
PROGRAM
COUNTER
PROGRAM
STATUS WORD
STACK
POINTER
I/O PORT 02
SERIAL
I/O
INPUT
PORT 1
I/O PORT 2
A/D
CONVERTER
P8.0/TCL0
P8.1/TCLO0
P8.2
I/O PORT 8
256 x 4-BIT
DATA
MEMORY
4 K BYTE
PROGRAM
MEMORY
I/O PORT 3
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
AVREF
P3.0/AD4
P3.1/AD5
P3.2/CLO/TCL1
P3.3/PWM / TCLO1
Figure 1-1. S3C7414/C7424/C7434Simplified Block Diagram
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S3C7414/P7414/C7424/P7424/C7434/P7434
PIN ASSIGNMENTS
PRODUCT OVERVIEW
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
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 P8.2
41 P8.1/TCLO0
40 P8.0/TCL0
39 P7.3
38 P7.2
37 P7.1
36 P7.0
35 P6.3/KS3
34 P6.2/KS2
33 P6.1/KS1
32 P6.0/KS0
31 P1.3/INT4
30 P1.2/INT2
29 P1.1/INT1
28 P1.0/INT0
27 P0.3/BUZ
26 P0.2/SI
25 P0.1/SO
24 P0.0/SCK
23 P5.3
22 P5.2
Figure 1-2. S3C7414 Pin Assignment (42-SDIP)
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