SAP51 / SAP5S
AS-Interface Spec. V3.0
Datasheet
Compliant Universal AS-i IC
Brief Description
Benefits
The SAP5S/SAP51 is a next-generation CMOS inte-
grated circuit for AS-Interface networks. This low-
level field bus AS-i (Actuator Sensor Interface) was
designed for easy, safe, and cost-effective inter-
connection of sensors, actuators, and switches. It
transports both power and data over the same two-
wire unshielded cable.
•
Cost savings due to integrated Safety Code
Generator (SAP5S only)
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Special burst protection circuitry
Excellent electromagnetic compatibility
Physical Characteristics
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Operational temperature range: -25 to +85°C
SOP16 and SOP20 package
The SAP5S/SAP51 is used as part of a master or
slave node and functions as an interface to the
physical bus. It provides the power supply, physical
data transfer, and communication protocol handling.
The SAP5S/SAP51 is fully compliant with the
AS-Interface Complete Specification V3.0. It is func-
tion and pin compatible with the SAP4.1 (AS2702).
Available Support
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IDT AS-Interface Programmer Kit USB
IDT SAP5 Evaluation Board V2.0
The SAP5S/SAP51 can be programmed by the user
to operate in Standard Slave Mode, Safety Mode
(SAP5S only), or Master Mode. The special AS-i
Safety Mode (SAP5S only) assures short response
times regarding security-related events.
Related Products
•
ASI4U Universal AS-Interface IC
SAP5S/SAP51 Basic Application Circuits
All configuration data are stored in an internal
EEPROM that can be easily programmed by a sta-
tionary or handheld programming device.
Standard Application
+24V
UOUT
PFAULT
OSC1
The SAP5S/SAP51 is optimized for harsh environ-
ments by its special burst protection circuitry and
excellent electromagnetic compatibility.
DSTBn
PSTBn
OSC2
ASI+
ASI-
LTGP
D[3:0]
P[3:0]
Features
LTPN
CDC
U5R
SAP51/
SAP5S
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Compliant with the AS-Interface Complete
Specification V3.0
LED1
LED2
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Universal application: slaves, masters, repeaters
Integrated safety code generator (SAP5S only)
+0V
On-chip electronic inductor: 55mA current
drive capability
Safety Mode Slave Application
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Two LED outputs to support all AS-Interface
Complete Specification V3.0 status indication
modes
UOUT
U5R
OSC1
OSC2
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User programmable to operation in Standard
Slave Mode, Safety Mode, or Master Mode
D2
LTGP
ASI+
ASI-
D3
SAP5S
Supports 5.33 and 16 MHz crystals by
automatic frequency detection
LTPN
CDC
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Data pre-processing functions
D0
D1
Clock and communication watchdogs
for high system security
© 2016 Integrated Device Technology, Inc.
1
January 28, 2016