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PDF HD66137 Data sheet ( Hoja de datos )
| Número de pieza | HD66137 | |
| Descripción | High-Voltage Durable 240-Channel Common Driver for Dot-Matrix STN LCD | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HD66137T
High-Voltage Durable 240-Channel Common Driver
for Dot-Matrix STN LCD
ADE-207-291(Z)
Rev. 2
Aug. 03, 1999
Description
The HD 66137T is a 240-channel common driver which drives a dot matrix STN LCD panel. By changing
the mode, this can be applied to 240- and 200- and 160- channel output. Through the use of a 43-V high-
voltage CMOS process technology, a high-voltage drive of +21.5 V and –21.5 V, centering on VM is
possible. –21.5V generated from +21.5 V with built-in switching circuit and external capacity. Low logic-
drive voltage (3 V) is used. This device is used together with the segment driver HD66130, HD66134ST or
HD66136.
Features
• Display duty: Up to 1/240
• LCD drive voltage: 43 V max
• Built-in switching circuit (to generate –21.5 V)
• Number of LCD drive circuit: 240
• Operating voltage: 2.5 to 5.5 V
• Intermediate voltage I/F
• Built-in alternating signal generation circuit Pin programmable
• Output mode change: 240-output mode
200-output mode
160-output mode
• Built-in display-off function
• Flex TCP
1
1 page  
HD66137T
Pin Function
Connected
Classification Symbol Pin No. to
I/O
Power supply
VLCDL, R 273, 241 Power
VEEL, R 269, 245 supply
VCC,
GND
257
250
—
VHL, R
VLL, R
VML, R
272, 242 Power
270, 244 supply
271, 243
Input
VEO
268 VEEL, R output
C1, C2 267, 266 Capacitance —
Control signal CL
M
249
264
MWS0
MWS1
MWS2
MWS3
MWS4
258
259
260
261
262
MPU
Input
Extension
driver or
MPU
—
I/O
Input
Functions
VLCDL, R–VEEL, R : Power supply for LCD
drive
VLCDL, R : Power supply for switch circuit
VCC–GND : Power supply for logic circuit
Power supply for LCD drive level
VHL, R : Selected level (Set to the same
voltage as VLCDL, R.)
VLL, R : Selected level (Set to the same
voltage as VEEL, R.)
VML, R : Non-selected level and Power
supply for switch circuit
When use built -in switching circuit and
generate VEE, VEO pin connect to VEEL, R
pins. VM voltage is point of reference and
reversed and output the voltage input to the
voltage between VLCD and VM. If built-in
switching circuit is not used, don't connect
any lines to this pin.
External capacitance should be connected
here when using the switch circuit for
generate VEE.
If built-in switching circuit is not used, don't
connect any lines to this pin.
Shift clock input. Data is shifted at the falling
edge of shift clock CL of the shift register.
Inputs or outputs the alternating current for
LCD drive output.
This pin specifies the cycle of the alternating
signal (M signal) in the unit of the number of
lines. The number of lines, which is an
integer from 2 to 31, is specified as follows.
Usually, specify the number of lines within a
range from 10 to 31. When the HD66131T is
driven by an external alternating signal,
specify the number of lines as zero.
Number
of lines
MWS4
MWS3
MWS2
MWS1
MWS0
Line alternating
waveform
M-pin status
0 0 0 0 0 0 ——
Input
1 0 0 0 0 1 Prohibited
Output
2 0 0 0 1 0 2 lines alternated
3 0 0 0 1 1 3 lines alternated
•• •• •• •• •• ••
••
31 1 1 1 1 1 31 lines alternated
5
5 Page 
HD66137T
Absolute Maximum Rating
Item
Symbol Ratings
Unit Notes
Power supply Logic circuit
voltage
LCD drive circuit
Input voltage (1)
Input voltage (2)
Input voltage (3)
Input voltage (4)
VCC
VLCD
VEE
VT1
VH
VL
VM
–0.3 to +7.0
–0.3 to +25.0
–20.0 to +0.3
–0.3 to VCC + 0.3
–0.3 to VLCD
+0.3 to VEE
–0.3 to + 5.0
V
V
V
V
V
V
V
1, 8
1, 3, 8
1, 4, 8
1, 2
1, 5, 8
1, 6, 8
1, 7, 8
Operating temperature
Topr
–30 to +75
°C
Storage temperature
Tstg –55 to +110
°C
Notes: 1. Voltage from GND.
2. Applicable to DIO1, DISPOFF, SHL, M, NWS0, NWS1, NWS2, NWS3, NWS4, RESET, MODE0,
MODE1, CL, M/S, AMP, CCL, DIO2.
3. Applicable to VLCDL, R pins.
4. Applicable to VEEL, R pins.
5. Applicable to VHL, R pins.
6. Applicable to VLL, R pins.
7. Applicable to VML, R pins.
(Caution)
Operating the LSI in excess of the absolute maximum rating will result in permanent damage.
Use the LSI observing electrical characteristic conditions in normal operation. Exceeding the
conditions will cause malfunctions or will affect LSI reliability.
8. Observe the sequence of activation and inactivation for the following power supplies and signals.
And this sequence apply to use built - in switching circuit.
If the sequence is not observed, it may cause LSI malfunction, permanent damage, or adverse
effects.
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet HD66137.PDF ] | |
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