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NE1618DS Schematic ( PDF Datasheet ) - Philips

Teilenummer NE1618DS
Beschreibung Temperature monitor for microprocessor systems
Hersteller Philips
Logo Philips Logo 




Gesamt 16 Seiten
NE1618DS Datasheet, Funktion
INTEGRATED CIRCUITS
NE1618
Temperature monitor for
microprocessor systems
Product data
Supersedes data of 2001 Oct 03
File under Integrated Circuits, IC11 Handbook
Philips
Semiconductors
2002 Jan 04






NE1618DS Datasheet, Funktion
Philips Semiconductors
Temperature monitor for microprocessor systems
Product data
NE1618
SMBus INTERFACE AC SPECIFICATIONS
VDD = 3.0 V to 3.6 V; Tamb = 0 °C to +125 °C unless otherwise noted.
These specifications are guaranteed by design and not tested in production.
SYMBOL
PARAMETER
CONDITIONS
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVIH
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVIL
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁIOL
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁIIH & IIL
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCIN
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁfSCLK
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtLOW
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtHIGH
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtBUF
Logic input high voltage for STBY, SCLK, SDATA
Logic input low voltage for STBY, SCLK, SDATA
Logic output low sink current for
ALERT
SDATA
Logic input current
SMBus input capacitance for SCLK, SDATA
SCLK operating frequency
SCLK low time
SCLK high time
SMBus free time.
Delay from SDA stop to SDA start
VDD = 3 V to 5.5 V
VDD = 3 V to 5.5 V
VOL = 0.4 V
VOL = 0.6 V
VIN = VDD or GND
See Figure 4
See Figure 4
See Figure 4
See Figure 4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtHD:STA
Hold time of start condition.
Delay from SDA start to first SCL H–L
See Figure 4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtHD:DAT
Hold time of data.
Delay from SCL H–L to SDA edges
See Figure 4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtSU:DAT
set-up time of data.
Delay from SDA edges to SCL L–H
See Figure 4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtSU:STA
set-up time of repeat start condition.
Delay from SCL L–H to restart SDA
See Figure 4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtSU:STO
set-up time of stop condition.
Delay from SCL L–H to SDA stop.
See Figure 4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁtF FalltimeofSCLandSDA
See Figure 4
MIN
2.2
1.0
6.0
–1.0
0
4.7
4.0
4.7
4.0
0
250
250
4.0
TYP
5
5.0
5.0
MAX
0.8
1.0
100
1.0
UNIT
V
V
mA
mA
µA
pF
kHz
µs
µs
µs
µs
ns
ns
ns
µs
µs
tLOW
tR
tF
tHD:STA
SCLK
tHD:STA
tHD:DAT
tHIGH
tSU:DAT
tSU:STA
tSU:STO
SDATA
tBUF
PS
S
Figure 4. Timing measurements.
NOTE:
The NE1618 does not include the SMBus timeout capability (tLOW:SEXT and tLOW:MEXT).
P
SL01204
2002 Jan 04
6

6 Page









NE1618DS pdf, datenblatt
Philips Semiconductors
Temperature monitor for microprocessor systems
Product data
NE1618
Table 9. SMBus Interface Protocols
SMBus INTERFACE PROTOCOLS:
WRITE BYTE FORMAT (To write a data byte to the device register) :
123456789123456789
SCL
(TO NEXT)
SDA
a6 a5 a4 a3 a2 a1 a0
D7 D6 D5 D4 D3 D2 D1 D0
(TO NEXT)
S wA
A
DEVICE ADDRESS
DEVICE REGISTER COMMAND
SCL
(CONT)
123456789
SDA
(CONT)
D7 D6 D5 D4 D3 D2 D1 D0
A
DATA TO BE WRITTEN TO RGTR
P
READ BYTE FORMAT (To read a data byte from the device register):
123456789123456789
SCL
(TO NEXT)
SDA
a6 a5 a4 a3 a2 a1 a0
D7 D6 D5 D4 D3 D2 D1 D0
(TO NEXT)
S WA
AP
DEVICE ADDRESS
DEVICE REGISTER COMMAND
STOP
SCL (CONT)
123456789123456789
SDA (CONT)
a6 a5 a4 a3 a2 a1 a0
D7 D6 D5 D4 D3 D2 D1 D0
S RA
NA P
RESTART
DEVICE ADDRESS
DATA FROM DEVICE REGISTER
STOP
RECEIVE BYTE FORMAT (To read a data byte from already pointed register):
123456789123456789
SCL (CONT)
SDA (CONT)
a6 a5 a4 a3 a2 a1 a0
D7 D6 D5 D4 D3 D2 D1 D0
S RA
NA P
DEVICE ADDRESS
DATA FROM DEVICE REGISTER
SEND BYTE FORMAT (To generate a one–shot command) :
123456789123456789
SCL
SDA
a6 a5 a4 a3 a2 a1 a0
D7 D6 D5 D4 D3 D2 D1 D0
S wA
AP
DEVICE ADDRESS
ONE–SHOT COMMAND
STOP
SL01239
2002 Jan 04
12

12 Page





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