ELAN EM32117Q Datasheet
16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION
Preliminary
GENERAL DESCRIPTION
EM32117 is a CMOS 16-digit LCD panel driver. The EM32117 can receive dialing information such as dialing
digits, Pause, Flash, Pulse to Tone mode from EMC EM91465 series dialer IC and display the corresponding
pattern on the LCD panel. The EM32117 also supports various indicators such as the icons of STORE, SAVE,
Speaker phone (or Hand-Free), Lower or Upper page, Hold, etc. to support high-end feature phone applications.
The EM32117 can operate in stand-alone mode to display calendar and real time clock, conversation time
(stopwatch). The EM32117 also provides check the last conversation time function.
FEATURES
• ON-HOOK check last conversation time function.
• General flag display function for LOGO indication.
• Low power consumption: 1.5µA (max.)
• Uses single clock 32768 Hz crystal (with built-in capacitor, no need extra capacitor).
• LCD blank 2 sec after OFF-HOOK, to protect the STW data.
• Built-in serial data interface (compatiable with EM91465 series).
• Driver for 4.5-volt, 16-digit, 1/4 duty , 1/3 bias LCD panel with built-in voltage tripler circuit.
• Display dialing phone number.
• Display calendar and real time clock (RTC) in 12 hour or 24 hour format.
• Stopwatch function for counting conversation time up to 59 minutes 59 seconds.
• Operating voltage: 1.5 VDC ( typical )
• Dice form, QFP 80 pin package, and LCM (Liquid Crystal display Module) are available.
EM32117
APPLICATION
• LCD Feature phone and Digital display system.
PIN ASSIGMENT
NCNCNCNCNCNCSEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
6463626160595857565554535251504948474645444342
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
123456789
NCNCNCNCNCNCNC
SEG27
SEG28
SEG29
SEG30
SEG31
COM0
COM1
COM2
COM3
ENCLND*
ENRTC*
24/12*NCNCNCNC
EM32117Q
101112131415161718192021222324
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0GFTEST
NC
41
NCNCNCNCNC
XOUT
40
XIN
39
SS
V
38
VC2
37
VC1
36
V3
35
V2
34
V
DD
33
HKS
32
SD1
31
MS2
30
MS1
29
SPARE1
28
SPARE2
27
NC
26
NC
25
* This specification are subject to be changed without notice.
3.17.1999
1
EM32117
16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION
FUNCTION BLOCK DIAGRAM
SD1
XIN
XOUT
VDD
VSS
Preliminary
COM0~3
1/4 Duty 1/3 bias LCD Driver
Serial Data
Sampling
&
Decoding
Sampling
Signal
Generator
OSC
Power
Supply
Circuit
Serial Data
Display Buffer
SEG0~31
RTC/STW
Counter
Timing
Control
Circuit
GF
ENCLND
ENRTC
&
24/12
HKS
MS2
MS1
TEST
PIN DESCRIPTION
Pin Name Description
SPARE1, SPARE2 Need to be connected to V
COM0~COM3 LCD panel driver common output pins.
SEG0~SEG31 LCD panel driver segment output pins.
TEST Reserved for testing, should be left open.
MS1 Manual setting and check last conversation time input pin 1, with built-in pull-up optimal
resistor. The optimal resistor before keying=100kΩ, after keying change to 1MΩ for
reducing power consumption.
MS2 Manual setting input pin 2 with built-in pull-up; optimal resistor. The
optimal resistor before keying=100kΩ, after keying change to 1MΩ for reducing power
consumption.
SDI Serial data input pin with built-in 150 KΩ pull-up resistor.
HKS Hook switch status input pin with built-in 1 MΩ pull-up resistor.
V
DD, VSS
Positive power supply pin.
V2, V3 Voltage tripler circuit for LCD driver.
VC1, VC2 Voltage tripler circuit for LCD driver.
XIN, XOUT Crystal input and output pins for connecting a 32768Hz crystal (Internal built-in 2-p
capacitor).
24/12 RTC display 24 or 12 hours format selection pin (when this pin is pulled "high, RTC will
be displayed in 24 hour format. Otherwise will be display in 12 hour format).
ENCLND Calendar enable pin. When disabled (ENCLND* = high), the Calendar field of LCD
panel will be blanked. When 12 digit LCD panels are used, Calendar should be disable
to suppress output of calendar.
ENRTC RTC enable pin. When disabled (ENRTC* = high), the LCD panel will be blanked when
HKS pin is at high level.
GF General Flag input pin without built-in resistor. When GF pull "High" LCD panel will
display Icon. GF pull "Low", "GF" Icon will blank.
.
SS
* This specification are subject to be changed without notice. 3.17.1999
2
16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION
Preliminary
LCD Panel Description
The display font of the EM32117 LCD driver is shown as the following:
Digit #
141516 1
111213
EM32117
4
5678910
23
MEMORYRD
SPEAKER
BLANK DASH
HOLD AUTO LOCK SAVE MUTE
LO BATT ALARM
54
STORE
PAGE
*
0
987321 6
PAUSE
#
TONE
SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24
COM3 16f 16a 15f 15a 14f 14a 13f 13a
COM2 16g 16b 15g 15b 14g 14b 13g 13b
COM1 16e 16c 15e 15c 14e 14c 13e 13c
COM0 16d 15d 14d 13d
SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16
COM3 12f 12a 11f 11a 10f 10a 9f 9a
COM2 12g 12b 11g 11b 10g 1b 9g 9b
COM1 12e 12c 11e 11c 10e 10c 9e 9c
COM0 12d RD 11d Speaker 10d HOLD 9 d Memory
SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8
COM3 8f 8a 7f 7a 6f 6a 5f 5a
COM2 8g 8b 7g 7b 6g 6b 5g 5b
COM1 8e 8c 7e 7c 6e 6c 5e 5c
COM0 8d GF 7d ALARM 6d STORE 5d PAGE
SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0
COM3 4f 4a 3f 3a 2f 2a 1f 1a
COM2 4g 4b 3g 3b 2g 2b 1g 1b
COM1 4e 4c 3e 3c 2e 2c 1e 1c
COM0 4d AUTO 3 d LOCK 2d SAVE 1d MUTE
GF
ALARM PAGESTOREMEMORYRD SPEAKER HOLD AUTO LOCK SAVE MUTE
COM3
COM2
COM1
COM0
* This specification are subject to be changed without notice.
3.17.1999
3
16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION
Preliminary
EM32117
SEG31
SEG29
SEG30
SPEAKER
SEG27
SEG28
MEMORYRD
HOLD AUTO LOCK SAVE MUTE
SEG25
SEG23
SEG21
SEG26
SEG24
SEG22
SEG20
GF
SEG19
SEG17
SEG18
ALARM
SEG16
STORE
SEG15
SEG14
SEG13
PAGE
SEG11
SEG12
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
Figure 2 - Segment pin wiring diagram
Serial Data Interface
Since the serial data transmitters (e.g. EM91465 series dialers) may have different voltage level from EM32117,
therefore the following interconnecting scheme is recommended when using the EM32117 as a serial data
receiver. The SDO output from the serial data transmitters should be of NMOS open-drain structure as shown
below.
Dialer
EM32117
546
SDO SDI
1
2
3
Vss
VCC
546
2
1
3
VssVss
Data Format
When the EM32117 senses the falling edge of the Start bit, it will sample subsequent bits in the middle of each
bit. The received bit will then be assembled and decoded, and corresponding pattern will be displayed on LCD
panel. The serial data format is as follows:
01 01
Start Bit
Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5
Data Bits
Stop Bit
Protocol
There are three categories of dialing data, and representation and interpretation of serial data is as the following:
(Note: Codes 0000 and 1111 will be interpreted as" " (blank pattern) and"-"patterns, respectively and they
will shift on LCD panel just as other digit codes.
* This specification are subject to be changed without notice. 3.17.1999
4
Preliminary
∗ Keypad,SDO format and LCD display reference table:
Keypad bit5 bit4 bit3 bit2 bit1 bit0 Display
1000001 1
2000010 2
3000011 3
4000100 4
5000101 5
6000110 6
7000111 7
8001000 8
9001001 9
0001010 0
"*"/T 0 0 1 0 1 1
#001100
P001101 P
*/"T" 0 0 1 1 1 0
ST 1 0 0 0 0 0 STORE
HOLD 1 0 1 0 0 0 HOLD
HF 1 0 1 0 1 0 Speaker
Page 1 0 1 1 0 0 PAGE
A101110 A
F 1 0 1 1 1 1 clear all display
(Lock state) 1 0 0 0 0 1 Lock
MUTE 1 0 0 0 1 0 MUTE
Note 3 1 0 0 0 1 1 ALARM
EM1~EM3 1 1 1 1 0 0 MEMORY
M1~M40 1 1 1 1 0 0 MEMORY
RD 1 1 1 1 0 1 RD
SAVE 1 1 1 1 1 0 SAVE
Note:
1. Flash key will be treated as "clear LCD panel" command.
2. When lock condition establish.
3. MUTE and ALARM indicators will toggle with each received SDI code.
4. Any invalid data will be ignored by the EM32117.
• General flag display function. EM32117 provide General Flag Icon, when GF pin pull "high", then "GF" Icon
will be displayed. GF pin pull "low", the "GF" Icon will blank. The "GF" Icon can identify by user for special
distinguishment.
EM32117
16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION
FUNCTION DESCRIPTION
Operation Modes and System States
Depending on which state the EM32117 is in, the system will operate in one of two modes, namely, RTC mode
and Stop-watch mode. In the State 1, as defined by the State-diagram in figure 4, the system operates in RealTime Clock mode, otherwise, the system operates in Stop-Watch mode. The flow chart is as follows:
* This specification are subject to be changed without notice.
3.17.1999
5
16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION
Preliminary
EM32117
1
RTC Mode
State>1
State=1
2
Stop watch
Mode
Figure 3 - Top Level Flow Chart
The system can be in one of the six states as defined by the following state diagram. The transitions between
states are driven by the level of HKS pins as well as Serial Data "Hand-Free" and "Hold".
HKS=Lo
HKS=Hi
HF
HF
2
Off-hook state
HD
HD
HF
4
On-hook
Hand-free state
HF
HD
HF
HKS=Hi
1
On-hook state
HKS=Lo
3
Off-Hook
Hand-free state
HD
6
ON-Hook
Hold-line state
HKS=Hi
HD
HKS=Lo
HF
5
Off-Hook
Hold-line state
Figure 4 - System State Diagram
RTC (Real time clock) Mode
When the system is in State 1 and RTC function is enabled (ENRTC pin at low level), the EM32117 will be
in Real-Time Clock display mode. There are two different RTC display formats available, e.g., 12 or 24 hours
format selected by 24/12 pin. When this pin is pulled "high", RTC will be displayed in 24 hour format. When
"low", RTC will be displayed in 12 hour format, as shown in the following:
12 hour format:
24 hour format:
* This specification are subject to be changed without notice. 3.17.1999
6
EM32117
16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION
Preliminary
Setting Calendar and Real-Time clock
When the system is in State 1(ON-HOOK idle state), the calendar and Real-Time Clock can be set up by
operating MS1 and MS2 pins as described in the following:
1. When the system is in State 1, press MS1 and hold for over 2 sec , month digits will flash,
2. Press MS2 to increment month digits.
3. Press MS1 once again, day digits will flash,
4. Press MS2 to increment day digits.
5. Press MS1 again, hour digits will flash.
6. Press MS2 to count up data.
7. Press MS1 once again, minute digits and flash,
8. Press MS2 to count up minute digits.
9. Press MS1 again to finish RTC set up, and the second digit will be reset.
Note:
1. If MS2 are pressed and hold for over 2 seconds, then data automatically count up in every 0.5 sec.
2. Digit flash time is 1 Hz (0.5 sec on, 0.5 sec off)
The flow chart of RTC mode is as follows:
* This specification are subject to be changed without notice.
3.17.1999
7
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