Hitachi 22LD3750DC, Руководство по обслуживанию

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6.12 IC EEPROM 2Kbx8(24LC02)
The 24LC01/02 is a 1K/2K-bit serial read/write non-volatile memory device using the CMOS
floating gate process.Its 1024/2048 bits of memory are organized into 128/256 words and each word is 8
bits. The device is optimized for use in many industrial and commercial applications where low power
and low voltage operation are essential. Up to eight 24LC01/02 devices may be connected to the same
two-wire bus.
6.13 SPDIF Switch (NLAST4599)
The NLAST4599 is an advanced high speed CMOS single pole − double throw analog switch
fabricated with silicon gate CMOS technology. It achieves high speed propagation delays and low ON
resistances while maintaining low power dissipation. This switch controls analog and digital voltages
that may vary across the full power
− supply range (from VCC to GND).
The device has been designed so the ON resistance (RON) is much lower and more linear over
input voltage than RON of typical CMOS analog switches.
The channel select input structure provides protection when voltages between 0V and 5.5V are
applied, regardless of the supply voltage. This input structure helps prevent device destruction caused by
supply voltage
− input/output voltage mismatch, battery backup, hot insertion, etc.
Main features of NLAST4599 are:
• Select Pin Compatible with TTL Levels
• Channel Select Input Over
− Voltage Tolerant to 5.5V
• Fast Switching and Propagation Speeds
• Break
− Before − Make Circuitry
• Low Power Dissipation: ICC = 2A (Max) at TA = 25°C
• Diode Protection Provided on Channel Select Input
• Improved Linearity and Lower ON Resistance over Input Voltage
• Latch
− up Performance Exceeds 300mA