CXA2108 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA2108

Constant-Current Driver for Full Color LED Display

Sony Semiconductor 

Pin

No.

Reference

Symbol I/O voltage

level

47 XCS

I CMOS

50 XR/W I CMOS

48 XWR

I CMOS

49 XRD

I CMOS

46 DLDI

I CMOS

CXA2108Q

Equivalent circuit

DVCC

46 47 48

49 50

DGND

Description

Internal RAM chip select.

Internal RAM access is enabled by

inputting low level. (See Table 1.

Read/Write Switching Condition

Correspondence Table.)

Internal RAM read/write select.

Write mode is selected for high level, and

read mode for low level. See Table 1.

Read/Write Switching Condition

Correspondence Table for the actual

read/write switching signal input conditions.

Write clock input.

This pin is used to input the clock for

writing the luminance, brightness and

drive current data. It is not

synchronized with CLK.

Read clock input.

This pin is used to input the clock for

externally reading the luminance,

brightness and drive current data. It is

not synchronized with CLK.

Trigger signal input for luminance data

RAM (A)/(B) switching and PWM

output start.

(See the Timing Charts.)

–5–

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