- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98072 > SAA5296PS/NNN (NXP SEMICONDUCTORS) 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP52 PDF資料下載
參數(shù)資料
| 型號： | SAA5296PS/NNN |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| 封裝： | 0.600 INCH, PLASTIC, SDIP-52 |
| 文件頁數(shù)： | 46/72頁 |
| 文件大?。?/td> | 498K |
| 代理商： | SAA5296PS/NNN |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁當(dāng)前第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁
1998 Dec 14
50
Philips Semiconductors
Preliminary specication
Economy teletext and TV microcontrollers
SAA5x9x family
9.22
Clock generator
The oscillator circuit is a single-stage inverting amplifier in
a Pierce oscillator configuration. The circuitry between
XTALIN and XTALOUT is basically an inverter biased to
the transfer point. A crystal must be used as the feedback
element to complete the oscillator circuitry. It is operated in
parallel resonance. XTALIN is the high gain amplifier input
and XTALOUT is the output. To drive the device externally
XTALIN is driven from an external source and XTALOUT
is left open-circuit.
Fig.17 Oscillator circuit.
(1) The values of C1 and C2 depend on the crystal specification:
C1 = C2 = 2CL.
handbook, halfpage
MLC110
XTALOUT
XTALIN
OSCGND
C1
(1)
C2
(1)
Fig.18 Oscillator circuit driven from external source.
handbook, halfpage
MLC111
XTALOUT
XTALIN
OSCGND
external clock
not connected
9.23
Reset signal
The externally applied RESET signal (active HIGH) is
used to initialize the microcontroller core, in addition to the
teletext decoder. However, the teletext decoder
incorporates a separate internal reset function which is
activated on the rising edge of the analog supply pin, VDDA.
The purpose of this internal reset circuit is to initialize the
teletext decoder when returning from the “text standby
mode”.
To ensure correct device operation for both “text standby”
and “power-on” modes, it is recommended that the internal
reset signal is active for between 10 to 15 ms. The RESET
signal should only be applied after the power supplies
(VDDM, VDDA and VDDT) and the external crystal oscillator
have stabilized.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA5497PS/NNN | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| SAA5491H/NNN | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80 |
| SAA5532PS/NNNN | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| SAA5551PS/NNNN | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| SAA5500PS/NNNN | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP52 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5296XP/NV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| SAA5296ZP/NNN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| SAA5297 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5297A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5297AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。