SA56004X
SMBus-compatible, 8-pin, remote/local digital temperature
sensor with overtemperature alarms
Rev. 7 — 25 February 2013
Product data sheet
1. General description
The NXP Semiconductors SA56004X is an SMBus compatible, 11-bit remote/local digital
temperature sensor with overtemperature alarms. The remote channel of the SA56004X
monitors a diode junction, such as a substrate PNP of a microprocessor or a diode
connected transistor such as the 2N3904 (NPN) or 2N3906 (PNP). With factory trimming,
remote sensor accuracy of
1 C
is achieved.
Undertemperature and overtemperature alert thresholds can be programmed to cause the
ALERT output to indicate when the on-chip or remote temperature is out of range. This
output may be used as a system interrupt or SMBus alert. The T_CRIT output is activated
when the on-chip or remote temperature measurement rises above the programmed
T_CRIT threshold register value. This output may be used to activate a cooling fan, send
a warning or trigger a system shutdown. To enhance system reliability further, the
SA56004X employs an SMBus time-out protocol. The SA56004X has a unique device
architecture.
The SA56004X is available in the SO8, TSSOP8 and HVSON8 packages. SA56004X has
8 factory-programmed device address options. The SA56004X is pin-compatible with the
LM86, MAX6657/8, and ADM1032.
2. Features and benefits
Accurately senses temperature of remote microprocessor thermal diodes or diode
connected transistors within
1 C
On-chip local temperature sensing within
2 C
Temperature range of
40 C
to +125
C
11-bit, 0.125
C
resolution
8 different device addresses are available for server applications. The SA56004ED
with marking code 56004E, and SA56004EDP with marking code 6004E are address
compatible with the National LM86, the MAX6657/8 and the ADM1032.
Offset registers available for adjusting the remote temperature accuracy
Programmable under/overtemperature alarms: ALERT and T_CRIT
SMBus 2.0 compatible interface, supports TIMEOUT
Operating voltage range: 3.0 V to 3.6 V
I
2
C-bus Standard-mode and Fast-mode compatible
SO8, TSSOP8 and HVSON8 packages
Programmable conversion rate (0.0625 Hz to 26 Hz)
Undervoltage lockout prevents erroneous temperature readings
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
3. Applications
System thermal management in laptops, desktops, servers and workstations
Computers and office electronic equipment
Electronic test equipment and instrumentation
HVAC
Industrial controllers and embedded systems
4. Ordering information
Table 1.
Ordering information
Package
Name
SO8
Description
plastic small outline package; 8 leads; body width 3.9 mm
Version
SOT96-1
Type number
[1]
Topside
marking
SA56004AD
SA56004BD
SA56004CD
SA56004DD
SA56004ED
SA56004FD
SA56004GD
SA56004HD
SA56004ADP
SA56004BDP
SA56004CDP
SA56004DDP
SA56004EDP
SA56004FDP
SA56004GDP
SA56004HDP
SA56004ATK
SA56004ETK
[1]
56004AD
56004BD
56004CD
56004DD
56004ED
56004FD
56004GD
56004HD
6004A
6004B
6004C
6004D
6004E
6004F
6004G
6004H
6004A
6004E
TSSOP8
plastic thin shrink small outline package; 8 leads; body width 3 mm SOT505-1
HVSON8
plastic thermal enhanced very thin small outline package; no leads; SOT782-1
8 terminals; body 3
3
0.85 mm
There are 8 device slave address options, as described in
Table 4.
SA56004X
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7 — 25 February 2013
2 of 43
NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
4.1 Ordering options
Table 2.
Ordering options
Orderable
part number
SA56004AD,112
SA56004AD,118
SA56004BD
SA56004CD
SA56004DD
SA56004ED
SA56004FD
SA56004GD
SA56004HD
SA56004ADP
SA56004BDP
SA56004CDP
SA56004DDP
SA56004EDP
SA56004FDP
SA56004GDP
SA56004HDP
SA56004ATK
SA56004ETK
SA56004BD,112
SA56004BD,118
SA56004CD,112
SA56004CD,118
SA56004DD,112
SA56004DD,118
SA56004ED,112
SA56004ED,118
SA56004FD,112
SA56004FD,118
SA56004GD,118
SA56004HD,112
SA56004HD,118
SA56004ADP,118
SA56004BDP,118
SA56004CDP,118
SA56004DDP,118
SA56004EDP,118
SA56004FDP,118
SA56004GDP,118
SA56004HDP,118
SA56004ATK,118
SA56004ETK,118
Package
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
SO8
TSSOP8
TSSOP8
TSSOP8
TSSOP8
TSSOP8
TSSOP8
TSSOP8
TSSOP8
HVSON8
HVSON8
Packing method
Tube, bulk pack
Reel pack, SMD, 13-inch
Tube, bulk pack
Reel pack, SMD, 13-inch
Tube, bulk pack
Reel pack, SMD, 13-inch
Tube, bulk pack
Reel pack, SMD, 13-inch
Tube, bulk pack
Reel pack, SMD, 13-inch
Tube, bulk pack
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Tube, bulk pack
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Reel pack, SMD, 13-inch
Minimum
order quantity
2000
2500
2000
2500
2000
2500
2000
2500
2000
2500
2000
2500
2500
2000
2500
2500
2500
2500
2500
2500
2500
2500
2500
6000
6000
Temperature
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
T
amb
=
40 C
to +125
C
Type number
SA56004AD
SA56004X
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7 — 25 February 2013
3 of 43
NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
5. Block diagram
SA56004X
V
DD
LOCAL
TEMP
SENSOR
ONE-SHOT
REGISTER
REMOTE OFFSET
REGISTER
CONVERSION
REGISTER
LOCAL TEMP
DATA REGISTER
REMOTE TEMP
DATA REGISTER
T_CRIT
HYSTERESIS
CONFIGURATION
REGISTER
LOCAL HIGH TEMP
THRESHOLD
LOCAL LOW TEMP
THRESHOLD
REMOTE HIGH
TEMP THRESHOLD
REMOTE LOW
TEMP THRESHOLD
COMMAND
REGISTER
LOCAL TEMP HIGH
LIMIT REGISTER
LOCAL TEMP LOW
THRESHOLD
REMOTE TEMP
HIGH LIMIT REG.
REMOTE TEMP
LOW LIMIT REG.
CONTROL
LOGIC
D+
D−
LOCAL
REMOTE
MUX
11-BIT
Σ-Δ
A-to-D
CONVERTER
ALERT
ALERT
INTERRUPT
STATUS REGISTER
GND
T_CRIT
T_CRIT
INTERRUPT
OTP DEVICE
ADDRESS REGISTER
SMBus INTERFACE
002aad202
SDATA
SCLK
Fig 1.
Block diagram
SA56004X
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7 — 25 February 2013
4 of 43
NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
6. Pinning information
6.1 Pinning
V
DD
D+
D−
T_CRIT
1
2
8
7
SCLK
V
DD
SDATA
ALERT
GND
1
2
3
4
002aad199
8
7
SCLK
SDATA
ALERT
GND
SA56004XD
3
4
002aad198
D+
D−
T_CRIT
6
5
SA56004XDP
6
5
Fig 2.
Pin configuration for SO8
terminal 1
index area
V
DD
D+
D−
T_CRIT
1
2
Fig 3.
Pin configuration for TSSOP8
8
7
SCLK
SDATA
ALERT
GND
SA56004XTK
3
4
6
5
002aad200
Transparent top view
Fig 4.
Pin configuration for HVSON8
6.2 Pin description
Table 3.
Symbol
V
DD
D+
D
T_CRIT
GND
ALERT
Pin description
Pin
1
2
3
4
5
6
Description
Positive supply voltage. DC voltage from 3.0 V to 5.5 V.
Diode current source (anode).
Diode sink current (cathode).
T_CRIT alarm is open-drain, active LOW output which requires an external
pull-up resistor. It functions as a system interrupt or power shutdown.
Power supply ground.
ALERT alarm is an open-drain, active LOW output which requires an
external pull-up resistor. It functions as an interrupt indicating that the
temperature of the on-chip or remote diode is above or below programmed
overtemperature or undertemperature thresholds.
SMBus/I
2
C-bus bidirectional data line. This is an open-drain output which
requires an external pull-up resistor.
SMBus/I
2
C-bus clock input which requires an external pull-up resistor.
SDATA
SCLK
7
8
SA56004X
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7 — 25 February 2013
5 of 43
