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Product Detailed Parameters
- Description：IC TELECOM INTERFACE 28SOIC
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tube
- Function：Telecom Circuit
- Interface：-
- Number of Circuits：1
- Voltage - Supply：3.8V ~ 5V
- Current - Supply：4mA
- Operating Temperature：-25°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：28-SOIC
- Power (Watts)：-
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Overview
The AS2536UT is a CMOS integrated circuit designed for high-performance electronic telephone sets. It integrates a line interface, speech circuit, dialler, and ringer into a single chip. The device supports LD/MF dialing, 4 direct memories, and 10 indirect memories. It operates within a supply voltage range of 3.8V to 5V and consumes 4mA during speech mode. The IC is housed in a 28-SOIC package and functions between -25°C and +70°C.
Feature Summary
- Integrates line interface, speech circuit, dialler, and ringer
- Supports LD/MF dialing with mixed-mode capability
- Includes 4 direct and 10 indirect memory keys
- Features electronic volume control and microphone mute
Applications
- Electronic telephone set construction
- PABX compatible telephony systems
- Basic feature telephones requiring tone/pulse dialing
Procurement Notes
Verify the specific suffix UT against official documentation to confirm packaging type. Confirm end-of-life status with the manufacturer prior to design-in. Ensure compatibility with existing 28-SOIC footprints and validate operating temperature ranges for the target environment.
Selection Notes
Select this component for applications requiring integrated telephony functions without external microcontrollers. Compare against AS2533 or AS2535 variants based on required memory configurations and repeat dialing features. Verify keyboard matrix requirements match the internal row/column scanning capabilities.
Part Context
The AS2536 belongs to the AS253x family of multi-standard CMOS telephone ICs from ams OSRAM. This series provides pin-compatible options ranging from basic LNR functionality to advanced memory storage. The AS2536 specifically offers a balance of direct and indirect memory access for standard office or residential telephony applications.
Replacement Considerations
AS2536UT-Z is a verified tape-and-reel alternative to the tube-packaged AS2536UT. Both share identical electrical characteristics and pinouts. Verify that the change in packaging does not impact automated assembly processes.
