SC18IS600 查看數據表（PDF） - Philips Electronics

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SC18IS600

SPI to I2C-bus interface

Philips Electronics 

NXP Semiconductors

SC18IS600/601

SPI to I2C-bus interface

Table 14. Additional SPI AC characteristics

Symbol Parameter

Conditions

tSPICLKW

tCSW

tSPILAG1

td

SPICLK HIGH time between two SPI bytes

CS HIGH time

between two SPI transactions

SPI enable lag time 1 in a SPI to I2C-bus transaction

delay time

from last SCLK pulse to SDA LOW in a SPI to I2C-bus

transaction

Min Typ Max Unit

8

-

-

µs

refer to Figure 24

µs

refer to Figure 25

µs

refer to Figure 26

µs

SCLK

CS

tSPILEAD

tSPICLKW

SDA

Fig 23. SPI to I2C-bus timing diagram

tCSW

tSPILAG1

td

002aab927

8

tCSW

(µs)

6

002aab929

4

2

0

1.843

3.687

7.373

12.00 18.00

CLKIN frequency (MHz)

Fig 24. tCSW as a function of CLKIN frequency

160

td

(µs)

120

5

tSPILAG1

(µs)

4

002aab930

3

2

1

0

1.843

3.687

7.373

12.00 18.00

CLKIN frequency (MHz)

Fig 25. tSPILAG1 as a function of CLKIN frequency

002aab931

80

40

0

1.843

3.687

7.373

12.00 18.00

CLKIN frequency (MHz)

Fig 26. td as a function of CLKIN frequency

SC18IS600_601_3

Product data sheet

Rev. 03 — 13 December 2006

© NXP B.V. 2006. All rights reserved.

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