Samsung KS58555B Datasheet
KS58555B UNIVERSAL 15 MEMORY DIALER
INTRODUCTION
The KS58555B is 15 memory Tone/pulse switchable dialer
with 32 digit redial memory. 16 digit indirect 10 memory
and 16 digit direct 4 memory are possible.
The Flash time is selectable on the keyboard.
Also, Hands-Free and Hold functions are controlled on the
keyboard. The KS58555B can fulfill all the standards of
each country.
22-DIP-400
FEATURES
• Flash Time selectable on the keyboard (100, 303, 604 mS)
• Hands-Free and Hold functions
• Tone/Pulse switchable
• 16 digit indirect (Two-touch) 10 memory (PuIse : 16 digit,
Tone : 15 digit)
• 16 digit direct (One-touch) 4 memory (Pulse : 16 digit,
Tone : 15 digit)
• Uses 3.579545MHz Color burst Crystal or ceramic resonator
• Pulse rate selectable. (10 pps, 20 pps)
• Make/Break ratio selectable (40 : 60, 33 : 66)
• Single tone enable for test
• Tone (T/•) key function (Pulse → Tone)
• Redial function (Pulse : 32 digit, Tone : 31 digit)
• Pin compatible with KS58006, KS58012, and KS58550
ORDERING INFORMATION
Devic
KS58555B 22-DIP-400 O O O Selectable Selectable Selectable
Package
HFD HOLD EM Flash Time M/B Ratio PPS
Function
*HFD : Hands Free Dialing Function
*HOLD : Hold for Melody
*EM : Emergency Memory
KS58555B UNIVERSAL 15 MEMORY DIALER
BLOCK DIAGRAM
V
DD
OSCI
OSCO
M/B
HS
MDS/DRS
SS
M/B
COUNTER
TIMING
COUNTER
HDO
REDIAL
RAM
14 MEMORY
STORE RAM
OSC DIVIDER
SYSTEM
CLOCK
CONTROL
CIRCUIT
WRITE/READ
ADDRESS
C1
C2
C3
C4
C5
R1
R2
R3
R4
R5
KEY
INPUT
INTERFACE
CIRCUIT
COUNTER
4
RECALL/LOCATION
LATCH & ADDRESS
COUNTER
HANDS FREE & HOLD
CONTROL OUTPUT
HFO V
PULSE
COUNTER
DEBOUNCE
CIRCUIT
DATA
LATCH
4
ROW, COLUMN
SINEWAVE
COUNTER &
D/A CONVERTER
DP
X’MUTE
TONE
KS58555B UNIVERSAL 15 MEMORY DIALER
PIN CONFIGURATION
M/B
MDS/DRS
OSCI
OSCO
1
R5
2
R1
3
R2
4
R3
5
R4
6
HS
KS58555B
7
8
9
10
11
C5
22
21
20
19
18
17
16
15
14
13
12
ARRANGEMENT OF KEY BOARD
- RD/P : Redial/Pause
1 2 3 ST EM1
4 5 6 R/L EM2
7 8 9 RD/P EM3
T/
0 # F3 EM4
HFI HDI F1 F2 NU
I = 1, 2, 3, 4.
- Nu : Not Used Key
- ST : Store
- R/L : Recall/Location
- F1 : Flash Time (100ms)
- F2 : Flash Time (303ms)
- F3 : Flash Time (604md)
- HFI : Hands-Free Dialing Key Input
- HDI : Hold Key Input
- T/• : Pulse → Tone Mode
- # : RD/P Function in Pulse Mode
Data in Tone Mode
- EMI : Direct Memory Location
HFO
C4
C3
C2
C1
DP
V+
X’MUTE
V
SS
VDD
HDO
SELECTION FUNCTION
PIN CONNECTION FUNCTION
V
DD
MDS/DRS OPEN PULSE MODE/10 PPS
V
SS
V
MAKE/BREAK
DD
V
SS
PULSE MODE/20 PPS
TONE MODE
1 : 2 (M : B)
2 : 3 (M : B)
KS58555B UNIVERSAL 15 MEMORY DIALER
PIN DESCRIPTION
Pin No Symbol I/O Description
1 R5
2 R1
3 R2 I Row Key Input
4 R3
5 R4
6 HS I Hook Switch
7 M/B I Make/Break Select
8 MDS/DRS I Mode & Dial Pulse Ratio Select Pin
9 OSCI I Oscillator Input
10 OSCO O Oscillator Output
11 C5 I Column 5 Input
12 HDO O Hold Function Control Output
13 V
14 V
DD
SS
15 TONE O Tone Output
16 X’MUTE O Xmute Output (N-Channel Open Drain)
17 DP O Dial Pulse Output (C-MOS Inverter Output)
18 C1
19 C2
20 C3
21 C4
22 HFO O Hands-Free Control Output
S (+) Power
S (-) Power
I
Column Key Input
ABSOLUTE MAXIMUM RATINGS
Characteristic Symbol Value Unit
Supply Voltage
Input Voltage
Output Voltage
Power Dissipation
Operating Temperature
Storage Temperature
V
DD
V
I
V
O
P
D
T
OPR
T
STG
- 0.3 ~ 7.0
- 0.2 ~ VDD + 0.3
- 0.3 ~ VDD + 0.3
500
- 20 ~ + 70
- 55 ~ + 150
V
V
V
mW
°C
°C
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