RA8835A
Version 1.0
Dot Matrix LCD Controller
10-3-6 External Oscillator Signal Timing
tRCL
tFCL
tWH
EXT￠0
tWL
tC
Ta = –20 to 75℃
VDD = 4.5 to 5.5V VDD = 2.7 to 4.5V
Signal
Symbol
tRCL
Parameter
Unit Condition
Min.
Max.
Min.
Max.
External clock rise
time
—
10
—
10
ns
ns
External clock fall
time
tFCL
—
10
—
10
External clock
HIGH-level pulse
width
tWH
note 1. note 2. note 1. note 2.
note 1. note 2. note 1. note 2.
ns
EXT Φ0
External clock
LOW-level pulse
width
tWL
tC
ns
ns
External clock period
55.5
—
62.5
—
Notes:
475
1. (tC − tRCL − tFCL ) ×
2. (tC − tRCL − tFCL ) ×
< tWH ,tWL
1000
525
> tWH ,tWL
1000
RAiO TECHNOLOGY INC.
www.raio.com.tw
86/88
RAIO [ RAIO TECHNOLOGY INC. ]
