LC7982A Datasheet, PDF (4/18 Pages) Sanyo Semicon Device – LCD Dot Matrix Graphics Display Controller

• Bus read/write operation 2
Data read cycle
LC7982A
Data write cycle
Ta = –20 to +75°C, V_DD = 5V ±5%, GND = 0 V
Parameter
Read cycle time
Write cycle time
Write cycle time
Write cycle time
Symbol
Instruction register value
t_RCY 0DH
t_WCY1 0EH, 0FH
t_WCY2
t_WCY3
0CH
00H, 01H, 02H, 03H, 04H,
08H, 09H, 0AH, 0BH
Ratings
Unit
min
typ
max
(HP+2) × 10³
f_OSC ⁺²⁰⁰
ns
(2HP+2) × 10³
f_OSC
+200
ns
(HP+2) × 10³
f_OSC ⁺²⁰⁰
ns
2000
f_OSC ⁺²⁰⁰
ns
Notes: • For character display, HP is the number of dots in the horizontal direction per character,
and for graphics mode, HP is the number of bits shown on the display from each byte of display data.
• f_OSC is the oscillator frequency, in units of MHz.
• All measurements are made at 1.5 V.
• Parallel operation (master mode)
Ta = –20 to +75°C, V_DD = 5V ±5%, GND = 0 V
Parameter
Symbol
SYNC delay time
SYNC pulse width
t_DSY
t_WSY
Notes: • With no loads on any of the output pins.
• Measurements are made at 0.5 V_DD.
Conditions
Ratings
min
typ
350
Unit
max
100
ns
ns
No. 5946-4/18