Philips Semiconductors
Product data sheet
NE1619
HECETA4 Temperature and voltage monitor
2004 Oct 05
4
FUNCTIONAL BLOCK DIAGRAM
SL01229
Local Temp
Sensor
Temp
Mux
A-to-D
Converter
Voltage
Mux
V
IN
Attenuators
Switch
Vid4
Register
Control
Logic
Local Temp
RDG Register
Remote Temp
RDG Register
VDD Reading
Register
VCCP Reading
Register
2.5 V Reading
Register
3.3 V Reading
Register
5 V Reading
Register
12 V Reading
Register
Configuration
Register
Local Temp
HL Register
Remote Temp
HL Register
VDD HL
Register
VCCP HL
Register
2.5 V HL
Register
3.3 V HL
Register
5 V HL
Register
12 V HL
Register
Local Temp
LL Register
Remote Temp
LL Register
VDD LL
Register
VCCP LL
Register
2.5 V LL
Register
3.3 V LL
Register
5 V LL
Register
12 V LL
Register
Command
Pointer Register
D+
D-/
NTEST_IN
GND
VDD
V
CCVIN
2.5 V
IN
3.3 V
IN
5 V
IN
12 V
IN
/
VID4
SMBus Interface
SCL
SDA
VID3
VID2
VID1
VID0
Address Decoder
and Register
Status
Register 1
Status
Register 2
Company #
Register
Step Version
Register
Test
Register
Reset Pulse
Circuit
VID 0-3
Register
NTEST
Circuit
A0/
RESET
/
NTEST_OUT
NE1619
Figure 2. Functional block diagram
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