adm1027 Analog Devices, Inc., adm1027 Datasheet - Page 3

• Manufacturer Part Number: adm1027
• Description: Dbcool? Remote Thermal Controller And Voltage Monitor
• Manufacturer: Analog Devices, Inc.

REV. A
Parameter
OPEN-DRAIN SERIAL DATA BUS
OUTPUT (SDA)
SMBUS DIGITAL INPUTS
(SCL, SDA)
DIGITAL INPUT LOGIC LEVELS
(VID0–4)
DIGITAL INPUT LOGIC LEVELS
(TACH INPUTS)
DIGITAL INPUT CURRENT
SERIAL BUS TIMING
NOTES
1
2
3
4
Specifications subject to change without notice.
All voltages are measured with respect to GND, unless otherwise specified.
Typicals are at T
Logic inputs will accept input high voltages up to V
Timing specifications are tested at logic levels of V
Output Low Voltage, V
High Level Output Current, I
Input High Voltage, V
Input Low Voltage, V
Hysteresis
Input High Voltage, V
Input Low Voltage, V
Input High Voltage, V
Input Low Voltage, V
Hysteresis
Input High Current, I
Input Low Current, I
Input Capacitance, C
Clock Frequency, f
Glitch Immunity, t
Bus Free Time, t
Start Setup Time, t
Start Hold Time, t
SCL Low Time, t
SCL High Time, t
SCL, SDA Rise Time, t
SCL, SDA Fall Time, t
Data Setup Time, t
Data Hold Time, t
Detect Clock Low Timeout, t
A
= 40∞C and represent the most likely parametric norm.
BUF
LOW
HIGH
HD;STA
HD;DAT
SW
SCLK
SU;STA
SU;DAT
IL
IN
IL
IL
IL
IH
IH
IH
IH
OL
f
r
OH
TIMEOUT
IL
MAX
= 0.8 V for a falling edge and V
even when the device is operating down to V
Min
2.0
1.7
2.0
–0.3
–1
10
4.7
4.7
4.0
4.7
4.0
250
300
15
Typ
500
0.5
0.1
5
–3–
IH
= 2.0 V for a rising edge.
Max
0.4
1
0.4
0.8
5.5
0.8
1
100
50
50
1000
300
35
MIN
.
Unit
mV
V
V p-p
ns
V
mA
V
V
V
V
V
V
V
mA
mA
pF
kHz
ns
ms
ms
ms
ms
ms
ms
ns
ns
ms
Test Conditions/Comment
I
V
Maximum Input Voltage
Minimum Input Voltage
V
V
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
See Figure 1
Can Be Optionally Disabled
OUT
OUT
IN
IN
= V
= 0
= –4.0 mA, V
= V
CC
CC
CC
= 3.3 V
ADM1027