MTV512MV View Datasheet(PDF) - Myson Century Inc

Part Name

Description

Manufacturer

MTV512MV

8051 Embedded Monitor Controller 64K Flash Type

Myson Century Inc 

MTV512M

Preliminary

SCL

1

8

9

DATA OUT

tR

THD;DAT

Figure 3. Slave Data Transmission Timing in Read Mode

Parameter

Symbol

time

min

Time interval from SCL falling** edge

(under VIL) to data starting to update

(10% or 90% swing)

tHD;DAT

2 x sysclk

*

Time interval from SCL falling edge

(under VIL) to slave starting to update

(10% swing)

tACKST

2 x sysclk

Time interval from SCL falling edge

(under VIL) to slave starting to update

(10% swing)

tACKSP

2 x sysclk

SDA rise time by slave IIC (10% to

tR

90% swing)

123.9ns

SDA fall time by slave IIC (90% to 90%

tF

swing)

0.85ns

*sysclk is the clock input on X1. It is 83ns for 12MHz crystal.

**SCL falling means when SCL drop below VIL of IIC PAD, which is 1.0 volt in typical case.

max

3 x sysclk

3 x sysclk

3 x sysclk

127.1nsns

2.79ns

Acceptable IIC start/stop Timing

SCL

DATA OUT

TSU;STO

TBUF

THD;STA

Figure 4. Acceptable IIC Start/Stop Timing

Parameter

Time interval from SCL

rising edge (over VIH) to

SDA rising edge (10% swing)

Time interval from SDA

rising edge to SCL falling

edge (90% swing)

Bus free time between stop

and start (from 90% to 90%

Symbol

tSU;STO

tHD;STA

tBUF

Min

600ns

600ns

1300ns

Max

-

-

-

page 14 of 14

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