ST7637 datasheet(15/210 Pages) SITRONIX

15 / 210 page

ST7637

Ver 1.6

15/210

2009/03

6.3

System Control

Name

I/O

Description

CLS

Reserve for testing only.

Please fix this pin to VDDI.

I/O

Reserve for testing only. Leave this pin open.

CSEL

This pin should connect to VDDI.

TCAP

I/O

Test pin. Left it opens.

VREF

Reference voltage output for monitor only. Left it opened.

VPP

When writing OTP, it needs external power supply voltage 7.5V~7.75V input to write successfully.

6.4

Microprocessor Interface

Name

I/O

Description

/RST

Reset input pin

When /RST is “L”, initialization is executed.

IF[3:1]

Parallel / Serial data input select input

IF3

IF2

IF1

MPU interface type

80 series 16-bit parallel

80 series 8-bit parallel

68 series 16-bit parallel

68 series 8-bit parallel

8-bit serial (4 line)

9-bit serial (3 line)

Note:

Refer to Table 7.2-1 for detail interface connections.

/CS

Chip select input pins

Data / Instruction I/O is enabled only when /CS is "L". When chip select is non-active, D0 to D15

become high impedance.

In parallel interface:

A0 = "H": D0 to D15 or SI are display data

A0 = "L": D0 to D15 or SI are control Command

In 3-line/4-line interface:

This pad will be used for SCL function.

ST7637 Datasheet(PDF) 15 Page - Sitronix Technology Co., Ltd.

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