LC7982A Datasheet, PDF (5/18 Pages) Sanyo Semicon Device – LCD Dot Matrix Graphics Display Controller

• External RAM and ROM interface
MA0 to
MA15
MD0 to
MD7
RD0 to
RD7
LC7982A
Read Cycle at Ta = –20 to +75°C, V_DD = 5 V ±5%, GND = 0 V
Parameter
Symbol
Conditions
MA0 to MA15 read address delay time
MD0 to MD7, RD0 to RD7 setup time
t_DMAR
t_SMDR
Write Cycle at Ta = –20 to +75°C, V_DD = 5 V ±5%, GND = 0 V
Parameter
Symbol
Conditions
Memory address setup time
WE pulse width
Memory data setup time
Memory address hold time
Memory data hold time
t_SMAW
t_WWE
t_SMDW
t_HMAW
t_HMDW
Notes: • With no loads on any of the output pins.
• All measurements are made at 1.5 V.
• Driver IC interface
Ratings
min
typ
105
Unit
max
95
ns
ns
Ratings
Unit
min
typ
max
50
ns
350
ns
250
ns
50
ns
50
ns
D1, D2
Ta = –20 to +75°C, V_DD = 5 V ±5%, GND = 0 V
Parameter
Symbol
Conditions
Clock cycle time
Clock phase difference
Clock rise and fall times
D1 and D2 phase difference
MA and MB phase difference
FLM phase difference
t_CYC
t_DCL
t_CRF
t_DD
t_DMA
t_DFM
Notes: • With no loads on any of the output pins.
• Measurements other than those with a specified measurement point are made at 0.5 V_DD.
min
400
Ratings
typ
Unit
max
ns
100
ns
30
ns
100
ns
200
ns
200
ns
No. 5946-5/18