DS1780E Maxim Integrated Products, DS1780E Datasheet - Page 5

• Manufacturer Part Number: DS1780E
• Description: IC CPU PERIPHERAL MON 24-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of DS1780E

• Function: Thermal Monitor, CPU Peripherals
• Topology: ADC (Sigma Delta), Comparator, Fan Speed Control, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 2.8 V ~ 5.75 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Full Temp Accuracy: +/- 12 %
• Digital Output - Bus Interface: Serial (2-Wire)
• Digital Output - Number Of Bits: 8 bit
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

INTERNAL ADDRESS REGISTER MAP Table 2
Serial Address Register
Chassis Intrusion Clear
Configuration Register
Interrupt (INT) Status
Interrupt (INT) Status
Interrupt (INT) Mask
Interrupt (INT) Mask
VID4 Register
Analog output
Configuration
VID Register
Test Register
REGISTER
Company ID
Temperature
Value RAM
Register 1
Register 2
Register 1
Register 2
Stepping
Register
Register
DS1780 INTERNAL
HEX ADDRESS
20h-3Dh
4Bh
3Eh
3Fh
40h
41h
42h
43h
44h
46h
47h
48h
49h
15h
19h
5 of 28
POWER ON VALUE
0101 XXXX
0010 11XY
1000 000X
0000 1000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0001
0000 0000
1111 1111
1101 1010
0000 0001
clears Chassis Intrusion.
and Y Reflects A0 state
The lower 4 bits reflect
Bit 0 = VID 4. The rest
contents of the register.
X Reflects state of A1
Bit 7 of this register
VID0-VID3 pins.
The other bits are
Do not alter the
are reserved.
the state of
Read only
Read only
reserved.
NOTES
Full on