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HT1613C Timer with Dialer Interface
Features
* Operating voltage: 1.2V~1.7V * Low operating current: 3mA (typ.) * Dialing number and conversation time display * Conversation timer (59 mins and 59 secs max.) * 8 or 10-digit LCD display driver; 3V, 1/2 bias, 1/3 duty (8
Patent Number: 84545 (R.O.C.) Patent Pending: 08/214, 079 (U.S.A.)
* Uses 32768Hz crystal * Two-button sequential operation for real time clock
setting
* Pad options - Real time (RT) - Auto change to timer mode (ACT) - Extension phone number display (EPN)
digit hand-held calculator LCD used for 8-digit application)
* Real time clock with stopwatch * Built-in dialer interface * 12-hour or 24-hour format
* Blinking cursor waits for dialing number * Last call time display
Applications
* Timers, clocks and watches * LCD display drivers * Telephone display interface * Instrument display
General Description
The HT1613C is a CMOS chip designed for dialer interfaces driving 8 or 10 digit LCDs. Various functions, such as real time clock, dialing number and conversation time display are provided. The HT1613C can display the real time or be blank by default. When answering a telephone call, the timer is activated to tell users how long the conversation has taken. The HT1613C receives dialing data from the dialer and displays the phone number on the LCD from left to right each time a phone call is made. By adding a TIMER key, the HT1613C can provide the stopwatch and timer reset/hold functions. Refer to the functional description for details.
Block Diagram
X1 X2 T1 T2 T im e r DI SK S2 RES T IM E R 1 2 /2 4 S1 HK ACT C o n tro l C ir c u it S can CKT S h ift R e g is te r S ta te C o n tro l Segm ent L a tc h & S e le c t SEG 30 D ecoder & MUX SEG1 V o lta g e D o u b le r T im e B ase Com m on C ir c u it IN T COM1 COM2 COM3 VA VB VC
RT
EPN
Rev. 1.10
1
August 17, 2001
HT1613C
Pad Assignment
SEG 27 54 SEG 26 53 SEG 25 52 SEG 24 51 SEG 23 50 SEG 22 49 SEG 21 48 SEG 20 47 SEG 19 46 SEG 18 45 SEG 17 44 SEG 16 43 SEG 15 42 41 40 SEG 28 1 2 3 4 5 SEG 29 SEG 30 COM2 HK 39 38 37 36 35 6 7 8 9 10 11 12 13 14 15 DI 16 SK 17 ACT 18 VSS 19 EPN 20 RES 21 VA 22 VB 23 VC 24 VDD (0 ,0 ) 34 33 32 31 30 29 28 27 26 25 SEG 14 SEG 13 SEG 12 SEG 11 SEG 10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 COM3 COM1 RT
S2 X2 X1 T2 T1 IN T T IM E R 1 2 /2 4 S1
Chip size: 128 141 (mil)2 * The IC substrate should be connected to VDD in the PCB layout artwork.
Pad Coordinates
Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 X -57.91 -57.91 -57.91 -57.91 -57.37 -57.37 -57.91 -57.91 -57.91 -57.91 -57.91 -57.91 -57.91 -57.91 -47.20 -33.43 -22.80 -16.37 Y 45.52 38.59 31.67 24.79 16.98 2.91 -8.60 -15.53 -22.49 -29.38 -36.26 -45.82 -54.20 -62.50 -62.50 -62.50 -62.46 -62.50 Pad No. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 X -10.25 2.76 11.94 32.97 39.86 46.74 58.10 58.10 58.10 58.10 58.10 58.10 58.10 58.10 58.10 58.10 58.10 58.10 Y -61.96 -61.96 -62.50 -62.50 -62.50 -62.50 -62.46 -55.04 -48.16 -36.30 -28.95 -21.61 -15.22 -7.88 -0.54 6.81 14.15 21.50 Pad No. 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 X 58.10 58.10 58.10 58.10 58.10 37.26 29.91 22.57 15.23 7.88 0.54 -6.81 -14.15 -21.50 -28.84 -36.18 -43.53 -50.87
Unit: mil Y 28.84 36.19 43.53 50.87 58.22 63.04 63.04 63.04 63.04 63.04 63.04 63.04 63.04 63.04 63.04 63.04 63.04 63.04
Rev. 1.10
2
August 17, 2001
HT1613C
Pad Description
Pad Name SEG1~SEG30 COM1~COM3 HK X1 X2 T1 T2 INT TIMER 12/24 S1 S2 DI SK RES RT I/O O O I I O I I O I I I I I I I Internal Connection CMOS OUT CMOS OUT CMOS IN Pull-high OSCILLATOR CMOS IN Pull-high CMOS IN Pull-high NMOS OUT CMOS IN Pull-low CMOS IN Pull-low CMOS IN Pull-low CMOS IN Pull-low CMOS IN Pull-high CMOS IN Pull-high CMOS IN Pull-high CMOS LATCH IN Pull-low CMOS LATCH IN Pull-high CMOS LATCH IN Pull-high CMOS OUT CMOS OUT CMOS OUT 3/4 3/4 Description LCD segment signal output pads LCD common signal output pads Hook switch detector input Active low 32768Hz crystal oscillator input 32768Hz crystal oscillator output Test pad (connected to VSS for production test) Test pad (connected to VSS for production test) Interrupt output, 8Hz or 16Hz by mask option Timer reset and start/hold toggle control input pad 12-hour or 24-hour format option pad, connected to VDD for 12-hour format Clock setting switch Active high Clock adjusting switch Active high Serial data input pad (connected to the dialer) Data should be valid at the falling edge of SK Clock input pad (connected to the dialer) System initialization pin (active low) The pull-high resistance is 200kW typ. Real time selection pin VDD: With real time mode Floating: Without real time mode Extension phone number display selection pin VSS: Without extension phone number display Floating: With extension phone number display In the dialing number display mode, auto change to timer mode selection VSS: Auto change to timer mode Floating: Manual change to timer mode Voltage doubler, connected to external capacitor Voltage doubler, connected to external capacitor Voltage doubler, connected to external capacitor Positive power supply Negative power supply, ground
I
EPN
I
ACT VA VB VC VDD VSS
I O O O 3/4 3/4
Rev. 1.10
3
August 17, 2001
HT1613C
Approximate internal connection circuits
C M O S IN P u ll- lo w C M O S IN P u ll- h ig h
V
DD
NMOS OUT
CMOS OUT
V
DD
C M O S L A T C H IN P u ll- h ig h
PW RON 15kW
C M O S L A T C H IN P u ll- lo w
X1 15kW PW RON 12pF
O S C IL L A T O R
X2 10M W
15pF
Absolute Maximum Ratings
Supply Voltage ............................................-0.3V to 5V Input Voltage..............................VSS-0.3V to VDD+0.3V Storage Temperature ............................-50C to 125C Operating Temperature...........................-20C to 75C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Electrical Characteristics
Symbol VDD VIL VIH ISTB IDD IOL tA tB tC tDB RHI1 RHI2 RLO fOSC Parameter Operating Voltage Input Low Voltage Input High Voltage Standby Current Operating Current Output Sink Current of INT Data Setup Time Data Hold on Time Inter Digit Time Debounce Time (HK, S1, S2, TIMER) Pull-high Resistance (HK, DI, SK) Pull-high Resistance (RES) Pull-low Resistance (TIMER, S1, S2, 12/24) System Frequency Test Conditions VDD 3/4 1.2V~1.7V 1.2V~1.7V 1.5V 1.5V 1.5V 1.5V 1.5V 1.5V 1.5V 1.5V 1.5V 1.5V 1.5V VIN=0V VIN=0V VIN=1.5V Crystal=32768Hz Conditions 3/4 3/4 3/4 VHK=Floating (or VDD) No load VO=0.3V 3/4 3/4 3/4 3/4 Min. 1.2 VSS 0.8VDD 3/4 3/4 500 1 2 5 3/4 3/4 100 3/4 3/4
fOSC=32768Hz, Ta=25C Typ. 1.5 3/4 3/4 0.1 3 1000 3/4 3/4 3/4 31.25 1 200 5 32768 Max. 1.7 0.2VDD VDD 1 10 3/4 3/4 3/4 3/4 3/4 3/4 400 3/4 3/4 Unit V V V mA mA mA ms ms ms ms MW kW MW Hz
Rev. 1.10
4
August 17, 2001
HT1613C
Functional Description
Operational flow chart
Power-on N Blank Y Real time clock
RT="1" ?
N
HK="0" ? Y Blinking" "
TIMER input? Y Display last timer value
N
N
HK="0" ? Y ACT="0" ? Y Dialing? Y Display no. N N
N N Dialing? Y Y N Display no.
HK="0" ? N Over 9 secs? N N TIMER input? Y
Y
HK="0" ? Y Y
HK="0" ? Y TIMER input? N Over 10 secs? Y Reset timer & start counting Keep counting N
N
TIMER input? Y
N
Display last timer value N
Over 9 secs? Y
HK="0" ? Y Y Dialing? N TIMER input? Y Hold timer
Y
EPN="0" ? N Display no. N
N
EPN="0" ? N Display no. N HK="0" ? Y Y TIMER input? N N Over 10 secs? Y
Y
HK="0" ? Y Y TIMER input? N Over 10 secs? Y
HK="0" ? Y Dialing? N N
N
Y
N
TIMER input? Y
Rev. 1.10
5
August 17, 2001
HT1613C
On-hook & Off-hook
R e a l T im e o r B la n k 10 Hour 11 M in u te 26 S2 B lo c k A S2 S1 25 37 S2 S1 > 9 secs D is p la y th e L a s t T im e O n -h o o k
T im e r M o d e
00
00
00 O ff-h o o k < 9 secs and O ff-h o o k (1 ) N o D a ta E n try > 1 0 s e c s (A C T = V S S ) R e c e iv e D ig it( s ) 7 ( 2 ) T IM E R in p u t ( A C T = flo a tin g )
01
00
02
B lo c k
B
O n -h o o k
78
R e c e iv e D a ta ( E P N = flo a tin g )
780 B lo c k C
Note:
Block A shows the switches S1 and S2 that are used for setting and selecting when RT=VDD (Real time mode). S1 and S2 are disabled when RT= floating (Blank mode). Block B illustrates a timer mode when TIMER input ACT= floating or when theres no data entry>10 secs (ACT=VSS). Once in the timer mode, the timer resets and starts to count the conversation time (ACT= floating). Block C displays blinking 3/4, after Off-hook, dialing data is received and displayed on the LCD from left to right.
Rev. 1.10
6
August 17, 2001
HT1613C
Data & Timing
* For telephone application * For instrument or mC application
The HT1613C is designed to display telephone numbers derived from the HT93XXX series telephone dialers. The corresponding data is illustrated in the following table.
D a ta C o d e b3 0 0 0 0 0 0 1 0 1 1 0 1 0 1 0 1 1 0 1 9 0 1 0 1 1 1 # F P 1
* Data latch timing
tB SK tA DI b3 b2 b1 b0 tC D ig it 1 b3 b2
K e y -In B la n k 1
b2
b1
b0 0 1 0 1
D is p la y B la n k
The HT1613C is also capable of displaying BCD data generated from instrument or a mC system. The corresponding data and timing is shown in the Data latch timing diagram. Before the data is transmitted to the HT1613C, the HK pin should be pulled-low or continuously kept low. The HT1613C is then ready to receive the data. At the falling edge of the clock the data is shifted in to the IC. After all the data is sent to the HT1613C, the SK pin is set low to avoid switching to the timer mode.
0 2 0 3 0 4 0 5 6 7 8
0 0 0 1 1 0 1 1 0 0 0 0 1 0 0 1 0 1 0 1 1 1 1 1 1 1 0 0 1
*
1 1
b1
b0
b1
b0
D ig it 2
D ig it N
Rev. 1.10
7
August 17, 2001
HT1613C
Application Circuits
For telephone interfacing (with batteries)
8 /1 0 -D ig it L C D
COM 1
COM SEG 3 1
SEG 30
COM 2
54 1 2 3 4 5 6 7 8
53
52
51
50
49
48
47
46
45
44
43
42
41 40 39 38 37 36 35 34 33 32 31
HK
S2
HT1613C
32768H z T IM E R
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
30 29 28 27 26 25
1 2 /2 4
S1
VDD
RT
DI
47kW
SK
ACT
EPN
0 .1 m F 0 .1 m F 1 .5 V +
8050 330kW
3 .5 8 M H z DO CLO C K X1
HFO
X2 VSS
HKS
HFI HDI
H T 9 3 X X X D ia le r
HDI
1N 41483 VDD 100kW 10M W A92
PO
O ff-h o o k O n -h o o k 1 A b r id g e
T ip
270kW
220kW 8050 100kW
HFI
2 .7 k W 47kW 330mF 10V A42 5 .1 V VSS 33kW 47kW
R in g
0 .0 2 m F
* The IC substrate should be connected to VDD in the PCB layout artwork.
Rev. 1.10
8
August 17, 2001
HT1613C
For telephone interfacing (without batteries)
8 /1 0 -D ig it L C D
COM 1
COM SEG 3 1
SEG 30
COM 2
54 1 2 3 4 5 6 7 8
53
52
51
50
49
48
47
46
45
44
43
42
41 40 39 38 37 36 35 34 33 32 31
HK
HT1613C
32768H z T IM E R
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
30 29 28 27 26 25
DI
SK
EPN
0 .1 m F 0 .1 m F
ACT
VDD
8050 330kW
47kW
3 .5 8 M H z HFO DO CLO C K X1 X2 VSS
HKS
HFI HDI
H T 9 3 X X X D ia le r
HDI
1N 41486 VDD 100kW 10M W A92 20kW HFI 2 .7 k W 47kW 33kW 5 .1 V A42 VSS
PO
O ff-h o o k O n -h o o k 1 A b r id g e
T ip
270kW 8050
220kW
R in g
47kW
1mF
100kW
0 .0 2 m F
330mF 10V
* The IC substrate should be connected to VDD in the PCB layout artwork.
Rev. 1.10
9
August 17, 2001
HT1613C
For instrument or mC use
8 /1 0 -D ig it L C D
COM 1
COM SEG 3 1
SEG 30
COM 2
54 1 2 3 4 5 6 7 8
53
52
51
50
49
48
47
46
45
44
43
42
41 40 39 38 37 36 35 34 33 32 31
HK S2
HT1613C
32768H z T IM E R
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
30 29 28 27 26 25
1 2 /2 4 S1
VDD
RT
DI
SK
EPN
0 .1 m F 0 .1 m F +
ACT
1 .5 V
R
R1
R
R1
R1
R
5V
HK
VDD
DO
CLO C K
In s tru m e n t o r m C
S y s te m
VSS
* The IC substrate should be connected to VDD in the PCB layout artwork. Note: To drive SK, DI, and HK pin, an open drain NMOS output structure is recommended. To drive SK, DI and HK pin with a CMOS output structure, a voltage divider is needed (R=4.3kW, R1=10kW).
Rev. 1.10
10
August 17, 2001
HT1613C
LCD Configurations
For 8-digit application
* Segment electrode side
COM COM SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG COM 1 3 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 2
LCD driving system 1/2 bias, 1/3 duty, 3V
* Common electrode side
COM2
COM1
COM3
* LCD connection
SEG
7
89
10 11 12
13 14 15
16 17 18
19 20 21
22 23 24
25 26 27
28 29 30
Rev. 1.10
11
August 17, 2001
HT1613C
For 10-digit application
* Segment electrode side
COM COM SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG COM 29 30 3 3 4 5 6 1 1 7 8 9 10 13 14 15 21 26 27 2 11 12 16 17 18 19 20 22 23 24 25 28 2
LCD driving system 1/2 bias, 1/3 duty, 3V
* Common electrode side
COM2
COM1
COM3
* LCD connection
SEG
1
23
4
56
7
89
10 11 12
13 14 15
16 17 18
19 20 21
22 23 24
25 26 27
28 29 30
Rev. 1.10
12
August 17, 2001
HT1613C
Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 Holtek Semiconductor Inc. (Sales Office) 11F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan Tel: 886-2-2782-9635 Fax: 886-2-2782-9636 Fax: 886-2-2782-7128 (International sales hotline) Holtek Semiconductor (Hong Kong) Ltd. RM.711, Tower 2, Cheung Sha Wan Plaza, 833 Cheung Sha Wan Rd., Kowloon, Hong Kong Tel: 852-2-745-8288 Fax: 852-2-742-8657 Holtek Semiconductor (Shanghai) Inc. 7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China Tel: 021-6485-5560 Fax: 021-6485-0313 Holmate Technology Corp. 48531 Warm Springs Boulevard, Suite 413, Fremont, CA 94539 Tel: 510-252-9880 Fax: 510-252-9885 Copyright O 2001 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw.
Rev. 1.10
13
August 17, 2001

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