Hitachi C28W440N, Service Manual

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PINNING PIN VALUE
1. Write protect enable (Ground) : 0V
2. Not connected (Ground) : 0V
3. Chip enable input (Ground) : 0V
4. Ground : 0V
5. Serial data address input/output : Input LOW voltage : Min : -0.3V, Max : 0.3*Vcc
Input HIGH voltage: Min : 0.7*Vcc, Max : Vcc+1
6. Serial clock : Input LOW voltage : Min: -0.3V, Max : 0.3*Vcc
Input HIGH voltage: Min : 0.7*Vcc, Max : Vcc+1
7. Multibyte/Page write mode : Input LOW voltage : Min: -0.3V, Max :0.5V
Input HIGH voltage: Min : Vcc-0.5, Max : Vcc+1
8. Supply voltage : Min : 2.5V, Max : 5.5V
16.12.
TDA1308: ( Headphone IC )
16.12.1.
Features:
•
Wide temperature range
•
No switch ON/OFF clicks
•
Excellent power supply ripple rejection
•
Low power consumption
•
Short-circuit resistant
•
High performance
- high signal-to-noise ratio
- high slew rate
- low distortion
•
Large output voltage swing
PINNING
PIN VALUE
1. Output A (Voltage swing) : Min : 0.75V, Max : 4.25V
2. Inverting input A : Vo(clip) : Min : 1400mVrms
3. Non-inverting input A : 2.5V
4. Ground : 0V
5. Non-inverting input B : 2.5V
6. Inverting input B : Vo(clip) : Min : 1400mVrms
7. Output B (Voltage swing) : Min : 0.75V, Max : 4.25V
8. Positive supply : 5V, Min : 3.0V, Max : 7.0V
16.13.
PCF8583: ( Clock IC )
16.13.1.
FEATURES
•
I²C-bus interface operating supply voltage: 2.5 V to 6 V
•
Clock operating supply voltage (0 to +70 ? C):1.0 V to 6.0 V
•
240 8-bit low-voltage RAM
•
Data retention voltage: 1.0 V to 6 V
•
Operating current (at f
SCL
= 0 Hz): max. 50 ? A