SAA1305T On Off Logic IC Philips
Price: $2.60
150 available for immediate delivery
Code: CS118PD
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Additional Information
On Off Logic ICs
Obsolete Part
SO24 Package
The SAA1305T has 8 inputs, each with accurate Schmitt triggers and circuit clamps. It is an on/off logic integrated circuit, it's primary purpose is as an intelligent I/O expander. The SAA1305T has 2 operating states. The first is as a normal I/O expander where the microcontroller is running and it is the slave. In the second state, sleep mode of the entire application, the microcontroller stops and the SAA1305T acts like a master. If an event occurs the microcontroller wakes up.
This on/off logic IC was designed to use in automobile radios to interface between a microcontroller and other input signals like ignition, on/off key, and outside control signals.
Specs:
Supply Voltage: 4.5V min. ; 5.0V typ. ; 5.5V max.
Quiescent Supply Current: 130µA typ. ; 200µA max.
Maximum SCL Clock Frequency: 400kHz max.
Virtual Junction Temperature: 150°C
Features:
Very low quiescent current
Reset generator circuit
Changed information output
On/off output to control a regulator IC which supplies the microcontroller
32.768 kHz RC oscillator and/or a 32.768 kHz crystal oscillator
No delayed reset needed (start-up behaviour oscillator fixed by internal logic)
Watchdog timer function
Blinking LED oscillator with drive circuit for LED
Watch function.
Manufactured by: Philips
Part Number: SAA1305T
Full Datasheet: SAA1305T