Samsung KS57P21408, KS57C21418, KS57C21408 Datasheet

KS57C21408/C21418/P21408 PRODUCT OVERVIEW

1 PRODUCT OVERVIEW

OVERVIEW

The KS57C21408/C21418/P21408 is a SAM47 core-based 4-bit CMOS single-chip microcontroller. It has a
timer/counter and LCD drivers.

The KS57P21408 is especially suited for use in data bank, telephone and LCD general purpose.
It is built around the SAM47 core CPU and contains ROM, RAM, 39 I/O lines, programmable timer/counter,

buzzer output, enough LCD dot matrix, and segment drive pins.
The KS57C21408/C21418/P21408 can be used for dedicated control functions in a variety of applications, and is

especially designed for multi data bank, telephone and LCD game.

OTP

The KS57C21408/C21418 microcontroller is also available in OTP (One Time Programmable) version,
KS57P21408. KS57P21408 microcontroller has an on-chip 8 K-byte one-time-programable EPROM instead of
masked ROM. The KS57P21408 is comparable to KS57C21408/C21418, both in function and in pin
configuration.

1-1

PRODUCT OVERVIEW KS57C21408/C21418/P21408

FEATURES SUMMARY

Memory

• 8192 × 8 bit program memory

• 5120 × 4 bit data memory in KS57C21408

• 2560 x 4 bit data memory in KS57C21418

• 108 x 5 bit display memory

39 I/O Pins

• Input: 6 pins

• I/O: 17 pins

• Output: maximum 16 pins for 1-bit level output
(sharing with segment driver outputs)

8-Bit Basic Timer

• Four internal timer functions

8-Bit Timer/Counter 0

• Programmable 8-bit timer

• External event counter

• Arbitrary clock frequency output

• External clock signal divider

LCD Display

• 12 characters dot matrix display (5 x 7)

• 12 digit display (8 segments)

• 60 segments and 9 common pins

Power-Down Modes

• Idle mode (only CPU clock stops)

• Stop mode (Main-System clock and CPU clock
stops)

Oscillation Sources

• Crystal, ceramic, or External RC for system clock

• Main-system clock frequency: 0.4 MHz - 6MHz

• Sub-system clock frequency: 32,768kHz

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

Instruction Execution Times

• 0.67, 1.33, 10.7 µs at 6MHz

• 0.95, 1.91, 15.3 µs at 4.19 MHz

• 122 µs at 32.768 kHz

Watch Timer

• Time interval generation: 0,5ms, 3,9ms at
32768Hz

• 4 frequency (2/4/8/16 kHz) outputs to BUZ pin

Interrupts

• Three external vectored interrupts: INT0, INT1,
INTP0

• Two internal vectored interrupts: INTB, INTT0

• Two quasi-interrupts: INTW, INT2

Memory Mapped I/O Structure

Operating Temperature

• -45 °C to 85 °C

Operating Voltage Range

• 1.8 V to 5.5 V

Package Type

• 100-pin QFP Package

1-2

KS57C21408/C21418/P21408 PRODUCT OVERVIEW

BLOCK DIAGRAM

XOUT

XIN

INTT0, INTB, INTW

INT0, INT1, INTP0, INT2

8-Bit

Timer/

Counter 0

RESET

Interrupt

Control

Block

XT

IN

Clock

XT

OUT

Instruction

Register

Input Port 0

Input Port 1

P0.0-P0.3/
K0-K3

P1.0/INT0
P1.1/INT1

COM0-COM8

SEG16-SEG59

SEG0-SEG15

/P8.0-P8.15

Watch Timer

Internal

Interrupts

Program

Counter

I/O Port 2

I/O Port 4

Basic Timer

Instruction Decoder

Program

Status Word

I/O Port 5

Arithmetic

LCD

Driver/

Controller

NOTE:

Data memory:

Display memory: 108 x 5 bits

and

Logic Unit

Data and

Display

Memory

5120 x 4 bits in KS57C21408
2560 x 4 bits in KS57C21418

Stack

Pointer

8 K Byte
Program

Memory

I/O Port 6

I/O Port 7

Output Port 8

Figure 1-1. KS57C21408/C21418/P21408 Specified Block Diagram

P2.0/BUZ
P2.1/CLO

P4.0/TCL0
P4.1/TCLO0
P4.2

P5.0-P5.3

P6.0-P6.3/
KS0-KS3

P7.0-P7.3/
KS4-KS7

P8.0-P8.15/
SEG0-SEG15

1-3

PRODUCT OVERVIEW KS57C21408/C21418/P21408

PIN ASSIGNMENTS

SEG39

SEG40

SEG41

SEG42

SEG43

SEG44

SEG45

SEG46

SEG47

SEG48

SEG49

SEG50

SEG51

SEG52

SEG53

SEG54

SEG55

SEG56

SEG57

SEG58

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

P6.0/KS0
P6.1/KS1
P6.2/KS2
P6.3/KS3
P7.0/KS4
P7.1/KS5
P7.2/KS6
P7.3/KS7

P2.0/BUZ
P2.1/CLO

TCL0/P4.0

TCLO0/P4.1

SEG59

COM4
COM5
COM6
COM7
COM8

VDD

V

SS

Xout

Xin

TEST

XTin

XTout

RESET

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

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

31

KS57C21408/C21418

100-QFP 1420C

39

38

37

36

35

34

33

32

40

41

42

43

44

45

46

47

48

49

50

80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51

SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15/P8.15
SEG14/P8.14
SEG13/P8.13
SEG12/P8.12
SEG11/P8.11
SEG10/P8.10
SEG9/P8.9

1-4

SEG8/P8.8

SEG7/P8.7

SEG6/P8.6

SEG5/P8.5

SEG4/P8.4

SEG3/P8.3

SEG2/P8.2

SEG1/P8.1

SEG0/P8.0

COM3

COM2

COM1

COM0

INT0/P1.0

INT1/P1.1

P0.0/K0

P0.1/K1

P0.2/K2

P0.3/K3

P4.2

Figure 1-2. KS57C21408/C21418 Pin Assignment Diagram

KS57C21408/C21418/P21408 PRODUCT OVERVIEW

PIN DESCRIPTIONS

Table 1-1. Pin Descriptions

Pin Name Pin

P0.0 - P0.3

Type

I

4-bit input port.

Description Circuit

Type

A-1 35-32

Pin

Number

Share Pin

K0-K3
1 and 4-bit read, and test are possible.
Pull-up registers.

P1.0
P1.1

2-bit Input port.

I

1 and 4-bit read, and test are possible, 2-bit pull-up

A-3 37

36

INT0
INT1

resistors are assignable by software.

P2.0
P2.1

2-bit I/O port. 1 and 4-bit read/write, and test are

I/O

possible.

D 23

24

BUZ

CLO
Each individual pin can be specified as input or
output.
2-bit pull-up resistors are assignable by software.
Pull-up resistors are automatically disabled for
output pins.

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

4-bit I/O port. 1, 4, and 8-bit read/write, and test are

I/O

possible.
4-pin unit can be specified as input or output.
4-bit pull-up resistors are assignable by software.

E
E-1
E-1
E-1

29
30
31

25-28

TCL0

TCLO0

Pull-up resistors are automatically disabled for
output pins.
Individual pins are software configurable as open­drain or push-pull output.

P6.0 - P6.3

4-bit I/O port. 1, 4,and 8-bit read/write, and test are

I/O

D-1 7-10 KS0 - KS3

possible.
Each individual pin can be specified as input or
output.
4-bit pull-up resistors are assignable by software.
Pull-up resistors are automatically disabled for
output pins.

P7.0 - P7.3 4-bit I/O port. 1, 4, and 8-bit read/write, and test are

11-14 KS4 - KS7
possible.
4-pin unit can be specified as input or output.
4-bit pull-up resistors are assignable by software.
Pull-up resistors are automatically disabled for
output pins.

P8.0 - P8.15 O 4-bit controllable output.

(Dual function as segment output pins)

SEG16-SEG59 LCD segment display signal output. H-10 58-100

H-9 42-57 SEG0 -

SEG15

-

,1

SEG0 - SEG15 LCD segment display signal output. H-9 42-57 P8.0 - P8.15
COM0 - COM8 LCD common signal output. H-11 38-41

-

2-6

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

37-36 P1.0 -P1.1
and INT1 is selectable

KS0 - KS7 I/O Quasi-interrupt input for falling edge detection. 7-14 P6.0 - P7.3
K0 - K3 I Vector interrupt input

35-32 P0.0 - P0.3
K0 - K3: falling edge detection

1-5

PRODUCT OVERVIEW KS57C21408/C21418/P21408

Table 1-1. Pin Descriptions (Continued)

Pin Name Pin

Type

BUZ I/O 2,4,8 kHz or 16kHz frequency output for buzzer

Description Circuit

Type

- 23 P2.0

Pin

Num.

Share Pin

signal.

CLO Clock output - 24 P2.1
Xin, X

out

- Crystal, ceramic or RC oscillator pins for main

- 18, 17 -

system clock.

XTin, XT

out

- Crystal oscillator pins for sub-system clock. - 20, 21 ­TCL0 I/O External clock input for Timer/Counter 0 - 29 P4.0
TCLO0 I/O Timer/Counter 0 clock output - 30 P4.1

RESET

V

DD

V

SS

TEST I Test input: it must be connected to V

I Reset input (active low). B 22 -

- Power supply. - 15 -

- Ground. - 16 -

SS

- 19 -

1-6

KS57C21408/C21418/P21408 PRODUCT OVERVIEW

PIN CIRCUIT DIAGRAMS

V

V

DD

Pull-up

Resistor

DD

P-channel

IN

N-channel

Vss

Figure 1-3. Pin Circuit Type A

V

DD

Pull-up

Pull-up
Resistor
Enable

P-channel

IN

Schmitt Trigger

Figure 1-5. Pin Circuit Type A-3

V

DD

Pull-up
Register

Pull-up
Resistor
Enable

IN

Figure 1-4. Pin Circuit Type A-1

P-channel

IN

Schmitt Trigger

Figure 1-6. Pin Circuit Type B

1-7

PRODUCT OVERVIEW KS57C21408/C21418/P21408

V

DD

V

DD

Pull-up

Resistor

Pull-up

Data

P-channel

Resistor
Enable

P-channel

Output
Disable

Pull-Up
Resistor
Enable

Data
Output

Disable

V

SS

Figure 1-7. Pin Circuit Type C

V

DD

Pull-Up

Resistor

P-channel

Type C

OUT

N-channel

In/Out

Data
Output

Disable

Type C

Schmitt Trigger

Figure 1-9. Pin Circuit Type D-1

VDD

PNE

Data

Output
Disable

VDD

P-channel

N-channel

IN/OUT

Pull-up
Resistor

Pull-up
Resistor
Enable

I/O

1-8

Figure 1-8. Pin Circuit Type D

Schmitt Trigger

Figure 1-10. Pin Circuit Type E

KS57C21408/C21418/P21408 PRODUCT OVERVIEW

V

DD

PNE

V

DD

Pull-up
resistor

Pull-up

V

LC2

Resistor

Data

P-channel

I/O

Enable

Segment
Data

OUT

Output
Disable

Figure 1-11. Pin Circuit Type E-1

SEG Data/P8.0-P8.15

Key
strobe

N-channel

V

V

LC2

LC0

Vss

OUT

V

LC0

Figure 1-13. Pin Circuit Type H-10

V

LC1

COM
Data

Polarity

Vss

V

Vss

DD

OUT

Figure 1-12. Pin Circuit Type H-9

Figure 1-14. Pin Circuit Type H-11

1-9