ML9222 Datasheet, PDF (10/25 Pages) OKI electronic componets – 32-Bit Duplex/Triplex VFD Controller/Driver with Digital Dimming, ADC and Keyscan

¡ Semiconductor
FEDL9222-02
ML9222
A/D Converter Characteristics
(Ta = –40 to +85°C, V_DD = 8.0 to 18.0 V)
Parameter
Condition
Min. Typ. Max. Unit
A/D Conversion Accuracy
—
—
—
±1
LSB
Reference Voltage (V_REG)
—
4.5
5.0
5.5
V
Output Current
—
—
—
–10 mA
Input Voltage Range
—
GND
—
V_REG
V
Conversion Time/Channel
R2 = 10kW±5%, C2 = 27pF±5%
256 310 394
ms
Keyscan Characteristics
Parameter
Keyscan Cycle Time
Keyscan Pulse Width
(Ta = –40 to +85°C, V_DD = 8.0 to 18.0 V)
Condition
Min. Typ. Max. Unit
R2 = 10kW±5%, C2 = 27pF±5%
160 194 246
ms
R2 = 10kW±5%, C2 = 27pF±5%
32
39
49
ms
Keyscan Timing
ROW1
ROW2
ROW3
ROW4
ROW5
Keyscan Cycle Time
Keyscan Pulse
Width
10/25