ST7637 datasheet(181/210 Pages) SITRONIX

181 / 210 page

ST7637

Ver 1.6

181/210

2009/03

(VDD=1.8V, Ta= 25°C, die)

Rating

Item

Signal

Symbol

Condition

Min.

Max.

Units

Address hold time

tAH8

—

Address setup time

tAW8

—

System cycle time (WRITE)

tCYC8

260

—

/WR L pulse width (WRITE)

tCCLW

—

/WR H pulse width (WRITE)

tCCHW

170

—

System cycle time (READ)

tCYC8

110

—

/RD L pulse width (READ)

tCCLR

—

/RD H pulse width (READ)

RD (ID)

tCCHR

When read ID data

—

System cycle time (READ)

tCYC8

450

—

/RD L pulse width (READ)

tCCLR

140

—

/RD H pulse width (READ)

RD (FM)

tCCHR

When read from frame

memory

300

—

WRITE data setup time

tDS8

—

WRITE data hold time

tDH8

—

READ access time (ID)

tACC8 (ID)

—

READ access time (FM)

tACC8 (FM)

CL = 30 pF

—

READ Output disable time

D0 to D7

tOH8

CL = 30 pF

—

*1 The input signal rise time and fall time (tr, tf) is specified at 15 ns or less. When the system cycle time is extremely fast,

(tr +tf)

(tCYC8

℃

– tCCLW – tCCHW) for (tr + tf)

(tCYC8

℃

– tCCLR – tCCHR) are specified.

*2 All timing is specified using 20% and 80% of VDD as the reference.

*3 tCCLW and tCCLR are specified as the overlap between /CS being “L” and WR and RD being at the “L” level.

ST7637 Datasheet(PDF) 181 Page - Sitronix Technology Co., Ltd.

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