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参数资料
| 型号： | PIC18LF45J50T-I/PT |
| 厂商： | Microchip Technology |
| 文件页数： | 15/32页 |
| 文件大小： | 0K |
| 描述： | IC PIC MCU FLASH 32KB 44-TQFP |
| 标准包装： | 1,200 |
| 系列： | PIC® XLP™ 18F |
| 核心处理器： | PIC |
| 芯体尺寸： | 8-位 |
| 速度： | 48MHz |
| 连通性： | I²C，SPI，UART/USART，USB |
| 外围设备： | 欠压检测/复位，DMA，POR，PWM，WDT |
| 输入/输出数： | 34 |
| 程序存储器容量： | 32KB（16K x 16） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 3.8K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2 V ~ 3.6 V |
| 数据转换器： | A/D 13x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 44-TQFP |
| 包装： | 带卷 (TR) |
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PIC18F2XJXX/4XJXX FAMILY
DS39687E-page 22
2009 Microchip Technology Inc.
DSWTPS<3:0>
CONFIG3L
Deep Sleep Watchdog Timer Postscale Select bits
The DSWDT prescaler is 32; this creates an approximate base time unit of 1 ms.
1111 = 1:2,147,483,648 (25.7 days)
1110 = 1:536,870,912 (6.4 days)
1101 = 1:134,217,728 (38.5 hours)
1100 = 1:33,554,432 (9.6 hours)
1011 = 1:8,388,608 (2.4 hours)
1010 = 1:2,097,152 (36 minutes)
1001 = 1:524,288 (9 minutes)
1000 = 1:131,072 (135 seconds)
0111 = 1:32,768 (34 seconds)
0110 = 1:8,192 (8.5 seconds)
0101 = 1:2,048 (2.1 seconds)
0100 = 1:512 (528 ms)
0011 = 1:128 (132 ms)
0010 = 1:32 (33 ms)
0001 = 1:8 (8.3 ms)
0000 = 1:2 (2.1 ms)
DSWDTEN
CONFIG3L
Deep Sleep Watchdog Timer Enable bit
1 = DSWDT enabled
0 = DSWDT disabled
DSBOREN
CONFIG3L
Deep Sleep BOR Enable bit
1 = BOR enabled in Deep Sleep
0 = BOR disabled in Deep Sleep (does not affect operation in non Deep Sleep modes)
RTCOSC
CONFIG3L
RTCC Reference Clock Select bit
1 = RTCC uses T1OSC/T1CKI as reference clock
0 = RTCC uses INTRC as reference clock
DSWDTOSC
CONFIG3L
DSWDT Reference Clock Select bit
1 = DSWDT uses INTRC as reference clock
0 = DSWDT uses T1OSC/T1CKI as reference clock
CONFIG3H
MSSP 7-Bit Address Masking Mode Enable bit
1 = 7-Bit Address Masking mode enable
0 = 5-Bit Address Masking mode enable
IOL1WAY
CONFIG3H
IOLOCK Bit One-Way Set Enable bit
1 = The IOLOCK bit (PPSCON<0>) can be set once, provided the unlock sequence has
been completed. Once set, the Peripheral Pin Select registers cannot be written to a
second time.
0 = The IOLOCK bit (PPSCON<0>) can be set and cleared as needed, provided the
unlock sequence has been completed
WPCFG(4)
CONFIG4L
Write/Erase Protect Configuration Words Page bit (valid when WPDIS = 0)
1 = Configuration Words page is not erase/write-protected unless WPEND and
WPFP<5:0> settings include the Configuration Words page
0 = Configuration Words page is erase/write-protected, regardless of WPEND and
WPFP<5:0> settings
WPEND
CONFIG4L
Write/Erase Protect Region Select bit (valid when WPDIS = 0)
1 = Flash pages, WPFP<5:0> to Configuration Words page, are write/erase-protected
0 = Flash pages, 0 to WPFP<5:0> are write/erase-protected
TABLE 5-5:
PIC18F46J11 AND PIC18F46J50 FAMILY DEVICES: BIT DESCRIPTIONS (CONTINUED)
Bit Name
Configuration
Words
Description
Note 1: The Configuration bits can only be programmed indirectly by programming the Flash Configuration Word.
2: The Configuration bits are reset to ‘1’ only on VDD Reset; it is reloaded with the programmed value at any device Reset.
3: These bits are not implemented in PIC18F46J11 family devices.
4: Once this bit is cleared, all the Configuration registers which reside in the last page are also protected. To disable code
protection, perform an ICSP Bulk Erase operation.
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