ADM1025ARQZ ON Semiconductor, ADM1025ARQZ Datasheet - Page 6

• Manufacturer Part Number: ADM1025ARQZ
• Description: IC MONITOR SYS/VOLT 5CH 16QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1025ARQZ

• Applications: PC's, PDA's
• Interface: I²C
• Voltage - Supply: 3 V ~ 5.5 V
• Package / Case: 16-QSOP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADM1025/ADM1025A
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 3. Pin Function Descriptions
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mnemonic
SDA
SCL
GND
V
VID0
VID1
VID2
VID3
D−/NTI
D+
12V
5V
3.3V
2.5V
V
ADD/ RST / INT /NTO
CC
CCPIN
IN
IN
IN
IN
/VID4
Description
Digital I/O. Serial bus bidirectional data. Open-drain output.
Digital Input. Serial bus clock.
System Ground
Power. Can be powered by 3.3 V standby power if monitoring in low power states is required. This pin also
serves as the analog input to monitor V
Digital Input. Core voltage ID readouts from the processor. This value is read into the VID0−VID3 Status
Register. It has an on-chip 100 kΩ pull-up resistor (ADM1025 only).
Digital Input. Core voltage ID readouts from the processor. This value is read into the VID0−VID3 Status
Register. It has an on-chip 100 kΩ pull-up resistor (ADM1025 only).
Digital Input. Core voltage ID readouts from the processor. This value is read into the VID0−VID3 Status
Register. It has an on-chip 100 kΩ pull-up resistor (ADM1025 only).
Digital Input. Core voltage ID readouts from the processor. This value is read into the VID0−VID3 Status
Register. It has an on-chip 100 kΩ pull-up resistor (ADM1025 only).
Analog/Digital Input. Connected to cathode of external temperature sensing diode. If held high at power-up, it
initiates NAND tree test mode.
Analog Input. Connected to anode of external temperature sensing diode.
Programmable Analog/Digital Input. Defaults to 12 V
VID4 Core Voltage ID readout from the processor. This value is read into the VID4 Status Register. In analog 12
V
Analog Input. Monitors 5 V supply.
Analog Input. Monitors 3.3 V supply.
Analog Input. Monitors 2.5 V supply.
Analog Input. Monitors processor core voltage (0 V to 3.0 V).
Programmable Digital I/O. The lowest order programmable bit of the SMBus Address, sampled on SMB activity
as a three-state input. Can also be configured to give a minimum 20 ms low reset output pulse. Alternatively, it
can be programmed as an interrupt output for temperature/voltage interrupts. Functions as the output of the
NAND tree in NAND tree test mode.
IN
mode, it has an on-chip voltage attenuator. In VID4 mode, it has an on-chip 300 kΩ pull-up resistor.
Rev. P5 | Page 6 of 21| www.onsemi.com
Figure 3.Pin Configuration
CC
.
IN
analog input at power-up but may be pro-grammed as
Preliminary Technical Data