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參數資料
| 型號： | LC72F3781 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, QIP-100 |
| 文件頁數： | 10/17頁 |
| 文件大小： | 127K |
| 代理商： | LC72F3781 |
LC72F3781
No.0459-2/17
Interrupt nesting levels
: 14 levels
Interrupts are prioritized in hardware as follows :
HOLD pin>INT0 pin>INT1 pin>INT2 pin>INT3 pin>INT4 pin>INT5 pin>
S-I/O0>S-I/O1>S-I/O2>Internal TMR0>Internal TMR1>Internal TMR2>
Internal TMR3
A/D Converter
: 8-bit resolution and 8 inputs
General-purpose ports
: Input ports : 13
Output ports : 4
I/O ports : 62 (These pins can be switched between input and output in 1-bit units.)
PLL block
: Includes a sub-charge pump for high-speed locking.
Supports dead zone control.
Built-in unlock detection circuit
Twelve reference frequencies : 1kHz, 3kHz, 3.125kHz, 5kHz, 6.25kHz, 9kHz,
10kHz, 12.5kHz, 25kHz, 30kHz, 50kHz, and 100kHz
Universal counter
: This 20-bit counter can be used for either frequency or period measurement and
supports four measurement (calculation) periods : 1ms, 4ms, 8ms, and 32ms
Timers
: Two fixed timers and two programmable timers (8-bit counters)
TMR0
: Supports four periods : 10
s, 100s, 1ms, and 5ms
TMR1
: Supports four periods : 10
s, 100s, 1ms, and 10ms
TMR2 and TMR3 : Programmable 8-bit counters.
Input clocks with 10
s, 100s, and 1ms
One 125-ms timer flip-flop provided
Beep circuit
: Provides 12 fixed beep tones :
500Hz, 1kHz, 2kHz, 2.08kHz, 2.2kHz, 2.5kHz, 3kHz, 3.125kHz, 3.33kHz,
3.75kHz, 4.17kHz, and 7.03kHz
Programmable 8-bit beep tone generator.
Reference clocks with frequencies of 50kHz, 15kHz, and 5kHz.
Reset
: Built-in voltage detection reset circuit
External reset pin
Cycle time
: 1.33
s/833ns (All instructions are one word), X’tal : 4.5MHz/7.2MHz
Supports software switching (Initial cycle time is 1.33
s)
Halt mode
: The microcontroller operating clock is stopped in Halt mode.
There are four conditions that can clear Halt mode : Interrupt requests,
timer flip-flop overflows, port PA inputs, and HOLD pin inputs.
Operating supply voltage : 4.5 to 5.5V (Microcontroller block only : 3.5 to 5.5V)
Package
: QIP100E
Development tools
: Emulator
: RE128V
Evaluation chip
: LC72EV3780
Evaluation board
: EB-72EV3780
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