Philips Semiconductors

Product data sheet

NE1617A

Temperature monitor for microprocessor systems

2004 Oct 05

6

These specifications are guaranteed by design and not tested in production.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Logic input high voltage for STBY, SCLK, SDATA

2.2

V

Logic input low voltage for STBY, SCLK, SDATA

0.8

V

Logic output low sink current for

ALERT

SDATA

1.0

6.0

mA

mA

Logic input current

–1.0

1.0

µA

SMBus input capacitance for SCLK,SDATA

5

pF

SCLK operating frequency

See Figure 4

0

100

kHz

SCLK low time

See Figure 4

4.7

5.0

µs

SCLK high time

See Figure 4

4.0

5.0

µs

SMBus free time.

Delay from SDA stop to SDA start

See Figure 4

4.7

µs

Hold time of start condition.

Delay from SDA start to first SCL H–L

See Figure 4

4.0

µs

Hold time of data.

Delay from SCL H–L to SDA edges

See Figure 4

0

ns

Set-up time of data.

Delay from SDA edges to SCL L–H

See Figure 4

250

ns

Set-up time of repeat start condition.

Delay from SCL L–H to restart SDA

See Figure 4

250

ns

Set-up time of stop condition.

Delay from SCL L–H to SDA stop

See Figure 4

4.0

µs

Fall time of SCL and SDA

See Figure 4

1.0

µs

NOTES:

2. Device operation between 3.0 V to 5.5 V is allowed, but parameters may be outside the limit shown in table.

P

S

SCLK

SDATA

SL01204

SP

Figure 4. Timing measurements.