Display 2X16

GDM2004D
Features
1. 2. 3. 4. 5. 5x8 dots Built-in controller (S6A0069 or equivalent) +5V power supply 1/16 duty cycle LED Backlight

SPECIFICATIONS OF LCD MODULE

Outline dimension

Unit: mm

Absolute maximum ratings
Item Power voltage Input voltage Operating temperature range Storage temperature range Environmental Humidity Expected Life Time Symbol VDD-VSS VIN Top Tst Standard 0 7.0VSS VDD 0 +50 -10 +60 RH≤70% ≥50000 Unit V ℃ H

Wide temperature range is available (operating/storage temperature as –20~+70/-30~+80 )

GDM2004D-FL-YBW Block diagram
VDD VSS V0 RS R/W E DB0-DB7 R LED BKL COM

LCD PANEL

LCD CONTROLLER AND DRIVER
SEG SEG

LCD DRIVER

LED+ LED-

Interface pin description
Pin no.
1 2 3 4 5 6 7~10 11~14 15 16

Symbol VSS VDD V0
RS R/W E DB0~DB3DB4~DB7 LED+ LED-

External connection
Power supply MPU MPU MPU MPU MPU LED BKL power Supply

Function
Signal ground for LCM (GND) Power supply for logic (+5V) for LCM Contrast adjust Register select signal Read/write select signal Operation (data read/write) enable signal Four low order bi-directional three-state data bus lines. Used for data transfer between the MPU and the LCM. Thesefour are not used during 4-bit operation. Four high order bi-directional three-state data bus lines. Used for data transfer between the MPU Power supply for BKL (Anode) Power supply for BKL (GND)

Contrast adjust
A）For Single Source

For Module with Normal Temperature Range Fluid VDD~V0: LCD Driving voltage

VR: 10k~20k

VER 1.0

2/9

2003/12/09

GDM2004D-FL-YBW
Opticalcharacteristics
STN type display module (Ta=25℃, VDD=5.0V)

Item Viewing angle Contrast ratio Response time (rise) Response time (fall)

Symbol θ Φ Cr Tr Tr

Condition Cr≥2 -

Min. -60
-40

-

Typ. 15 150 150

Max. 35 40 250 250

Unit deg ms

Electrical characteristics LED ratings
Item Forward Voltage Forward current Power Peak wave length Luminance Operating temperature range Storagetemperature range DC characteristics Parameter
Supply voltage for LCD Input voltage Backlight supply voltage Supply current Backlight supply current Input leakage current “H” level input voltage “L” level input voltage “H” level output voltage “L” level output voltage

Symbol VF IF P λp Lv VOP VST

Min 3.8

Typ. 4.0 240 568 185 -

Max 4.4 1.01

Unit V mA W nm Cd/m2 ℃

-20 -25

+70 +80Symbol VDD-V0 VDD VF IDD IF ILKG VIH VIL VOH VOL

Conditions
Ta =25℃

Min.
4.7 150 2.2 0 2.4 -

Typ.
4.6 4.1 1.5 -

Max.
5.5 4.3 3 1.0 VDD 0.6 0.4

Unit
V

Ta=25℃, VDD=5.0V VDD=5.0V R=6.8

mA uA V

Twice initial value or less LOH=-0.25mA LOH=1.6mA

Read cycle (Ta=25℃, VDD=5.0V)
Parameter
Enable cycle time Enable pulse width Enable rise/fall time RS; R/W setup time RS;R/W address hold time Read data output delay Read data hold time

Symbol tc tw tr, tf tsu th td tdh

Test pin
E RS; R/W RS; R/W DB0~DB7

Min.
500 300 100 10 60 20

Typ.
-

Max.
25 90 -

Unit

ns

VER 1.0

3/9

2003/12/09

GDM2004D-FL-YBW Write cycle
Parameter
Enable cycle time Enable pulse width Enable rise/fall time RS; R/W setup time RS; R/W address hold time Read dataoutput delay Read data hold time

Symbol tc tw tr, tf tsu1 th1 tsu2 th2

Test pin
E RS; R/W RS; R/W DB0~DB7

Min.
500 300 100 10 60 10

Typ.
-

Max.
25 -

Unit

ns

Write mode timing diagram

Read mode timing diagram

VER 1.0

4/9

2003/12/09

GDM2004D-FL-YBW

Instruction description
Outline
To overcome the speed difference between the internal clock of KS0066Uand the MPU clock, KS0066U performs internal operations by storing control in formations to IR or DR. The internal operation is determined according to the signal from MPU, composed of read/write and data bus (Refer to Table7). Instructions can be divided largely into four groups: 1) KS0066U function set instructions (set display methods, set data length, etc.) 2) Address set instructions to...