Instruction/ maintenance manual of the product TC9457F Toshiba
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TC9457F 2002 -10-21 1 TOSHI BA CMO S Digita l Integrat ed Circ uit Silicon Mono lith ic TC9457F Firmware Built In Digita l Servo The TC9457 F is a firmwa re incorpo rating CD digi tal servo system.
TC9457F 2002 -10-21 2 · CD digit al servo sy stem · Capable of decoding text data. · Sure and reliab le sync pattern detect ion, sync s ignal prot ection, and interpo lation.
TC9457F 2002-10- 21 3 Pin Connection Diagram.
TC9457F 2002 -10-21 4 Block Diagram.
TC9457F 2002 -10-21 5 Description Of Pin Fu nction Pin No. Symbol Pin Name Function And Operation Remarks 1~10 S1/OT5 ~ S10/OT14 LCD segment outputs /Output ports ― 11 S11/OT15 /CLC K ― 12 S12/OT1.
TC9457F 2002 -10-21 6 Pin No. Symbol Pin Name Function And Operation Remarks 25 26~28 29 P3-0/D CREF P3-1/AD IN1 ~ P3-3/AD IN3 P4-0/AD IN4/ BUZR I/O port 3 /AD analog reference voltage input I/O port 3 /AD analog voltage input I/O port 4 /AD analog voltage inputs /Buzzer output 5-bit CMOS I/O ports.
TC9457F 2002 -10-21 7 Pin No. Symbol Pin Name Function And Operation Remarks 45 SBOK Subcode Q data CRCC determination res ult output pin. It outputs a high when CRCC check is found OK. ― 46, 75 V DD ― 47, 76 V SS CD unit's digital block power supply pins.
TC9457F 2002 -10-21 8 Pin No. Symbol Pin Name Function And Operation Remarks 74 SEL APC circuit on/off signal out put pin. W hen laser is on, this pin goes to a high-impedance state when UHS = low and outputs a high when UHS = high. ― 77 XV SS ― 80 XV DD CD's cryst al oscillator power supply pins.
TC9457F 2002 -10-21 9 Pin No. Symbol Pin Name Function And Operation Remarks 92 INTR External interrupt i nput External interrupt input pin. When the interrupt faci lity is enabled and a pul se of 1.11 to 2.22 µs in duration is applied to this pin, an interrupt is generated and the program jumps to address 1.
TC9457F 2002 -10-21 10 Maximum Ratings (T a = 25°C) Characterist ics Symbol Rating Unit Power supply volt age V DD − 0.3~6.0 V Input volt age V IN − 0.
TC9457F 2002 -10-21 11 V DD (CD unit power supply) Characterist ics Sym bol Test Circuit Tes t Condition Min Typ. Max Unit Operating suppl y voltage V DD ― MV DD ≥ V DD (Note 5) 4.
TC9457F 2002 -10-21 12 I/O Po rts (P1-0 to P4-3) Characterist ics Sym bol Test Circuit Tes t Condition Min Typ. Max Unit High lev el I OH3 ― V OH = 4.5 V − 1 − 2 ― I OL3 ― V OL = 0.5 V (exclude P4-1, 2, 3 pin) 1.5 3.0 ― Output current Low level I OL5 ― V OL = 0.
TC9457F 2002 -10-21 13 DOUT , SBSY, S BOK, SEL, H SO, S PCK , SPDA , COFS Ou tput s Characterist ics Sym bol Test Circuit Tes t Condition Min Typ. Max Unit High lev el I OH4 ― V OH = 4.5 V − 2 − 4 ― Output voltage Low level I OL4 ― V OL = 0.
TC9457F 2002 -10-21 14 Package Dim ensions Weight: 1.6 g (ty p.).
TC9457F 2002 -10-21 15 · TOSHIBA is cont inually w orking to improve the quality and reliabil ity of its produc ts. Neve rtheless, se miconductor devices in gen eral ca n malfu nction or fail due to t heir inherent electrical sensitivity and v ulnerabili ty to phy sica l stress.
Thi s datashee t ha s been download from: www. dat asheetcatalog. com Datas heet s fo r electr oni cs com ponents..
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If you already are a holder of Toshiba TC9457F, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Toshiba TC9457F.
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