FEDL9227-01
OKI Semiconductor
ML9227
Key scan Characteristics
(Ta = –40 to +85°C, VDISP = 8.0 to 18.5 V)
Parameter
Key scan Cycle Time
Key scan Pulse Width
Condition
Min.
160
32
Typ.
194
39
Max.
246
49
Unit
µs
R = 10 kΩ ±5%, Co = 27 pF ±5%
R = 10 kΩ ±5%, Co = 27 pF ±5%
µs
Rotary switch characteristic
(Ta = –40 to +85°C, VDISP = 8.0 to 18.5 V)
Parameter
Sign
Condition
Min.
Typ. Max. Unit
Phase input time
Phase input fixed time
tABW
tABH
950
—
—
R = 10 kΩ ±5%, Co = 27 pF ±5%
µs
Rotary switch input timing
A
B
tABW
tABH
tABW
tABH
tABW
tABW
Key scan Timing
Key scan Cycle Time
ROW1
ROW2
ROW3
ROW4
ROW5
Key scan Pulse
Width
11/26