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參數資料
| 型號： | W742S82A |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT TELEPHONE CONTROLLER |
| 中文描述： | 4-BIT, MROM, 3.58 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 4/12頁 |
| 文件大小： | 193K |
| 代理商： | W742S82A |
W742S82A DATA SHEET
- 4 -
LCD driver output
40 segments x 4 commons
1/4 duty 1/3 bias driving mode
Clock source should be the sub-oscillator clock in the dual-clock operation mode
MFP output pin
Output is software selectable as modulating or non-modulating frequency
Works as frequency output specified by Timer 1
DTMF output pin
Output is one channel Dual Tone Multi-Frequency signal for dialing
Two built-in 14-bit frequency dividers
Divider0: the clock source is the output of the main-oscillator
Divider1: the clock source is the output of the sub-oscillator (dual-clock mode) or the Fosc/128
(single-clock mode)
Two built-in 8-bit programmable countdown timers
Timer 0: one of two internal clock frequencies (F
OSC
/4 or F
OSC
/1024) can be selected
Timer 1: with auto-reload function and one of three internal clock frequencies (F
OSC,
F
OSC
/64 or
Fs) can be selected by MR1 register; and the specified frequency can be delivered to MFP pin
Built-in 18/15-bit watchdog timer selectable for system reset; enable the watchdog timer or not is
determined by code option
Powerful instruction set
16-levels subroutine (include interrupt) nesting
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