ADM1025ARQ-REEL ON Semiconductor, ADM1025ARQ-REEL Datasheet - Page 4

• Manufacturer Part Number: ADM1025ARQ-REEL
• Description: IC MONITOR SYS/VOLT 5CH 16QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1025ARQ-REEL

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

ADM1025/ADM1025A
Pin
No. Mnemonic
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
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
grammed as VID4 Core Voltage ID readout from the processor. This value is read into the VID4
Status Register. In analog 12 V
an on-chip 300 kΩ pull-up resistor.
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.
PIN FUNCTION DESCRIPTIONS
PIN CONFIGURATION
GND
VID0
VID1
VID2
VID3
SDA
SCL
V
CC
1
2
3
4
5
6
7
8
(Not to Scale)
ADM1025A
ADM1025/
TOP VIEW
IN
–4–
mode, it has an on-chip voltage attenuator. In VID4 mode, it has
16
15
14
13
12
11
10
9
ADD/RST/INT/NTO
V
2.5V
3.3V
5V
12V
D+
D–/NTI
CCPIN
IN
IN
IN
IN
/VID4
CC
.
IN
analog input at power-up but may be pro-
REV. C