參數(shù)資料
型號： PIC16F785
廠商： Microchip Technology Inc.
英文描述： 20-Pin Flash-Based 8-Bit CMOS Microcontroller with Two-Phase Asychronous Feedback PWM, Dual High-Speed Comparators and Dual Operational Amplifiers
中文描述： 20引腳基于閃存的8兩相異步反饋的PWM，雙高位CMOS微控制器的高速比較器和雙運算放大器
文件頁數(shù)： 97/178頁
文件大小： 1620K
代理商： PIC16F785
2004 Microchip Technology Inc.
Preliminary
DS41249A-page 95
PIC16F785
13.8
Complementary Output Mode
The 2 Phase PWM module may be configured to oper-
ate in a Complementary Output mode where PH1 and
PH2 are always 180 degrees out-of-phase (see
Figure 13-8). Three complementary modes are avail-
able and are selected by the COMOD<1:0> bits in the
PWMCON1 register (see Register 13-5). The differ-
ence between the modes is the method by which the
PH1 and PH2 outputs switch from the active to the
inactive state during the PWM period.
The Complementary Output mode facilitates driving
series connected MOSFET drivers by providing over-
lap or deadband drive timing between each phase out-
put (see Figure 13-9). Overlap or deadband times are
selectable by the CMDLY<4:0> bits of the PWMCON1
register. Delays from 0 to 155 nanoseconds (typical)
with a resolution of 5 nanoseconds (typical) are avail-
able.
Selection between overlap or deadband delay is con-
trolled by the OVRLP bit of the PWM control register
(PWMCON1<7>).
REGISTER 13-5:
PWM CONTROL REGISTER 1 (PWMCON1: 110h)
R/W-0
OVRLP
bit 7
R/W-0
COMOD1
R/W-0
COMOD0
R/W-0
CMDLY4
R/W-0
CMDLY3
R/W-0
CMDLY2
R/W-0
CMDLY1
R/W-0
CMDLY0
bit 0
bit 7
OVRLP:
Delay Overlap Select bit
1
= Delay time is overlap time between PH1 and PH2
0
= Delay time is deadtime between PH1 and PH2
bit 6-5
COMOD<1:0>:
Complementary Mode Select bits
00
= Normal 2 phase operation. Complementary mode is disabled.
01
= Complementary operation. On time is terminated by C1OUT or C2OUT.
10
= Complementary operation. On time is terminated by PWMPH2<4:0>=pwm_count.
11
= Complementary operation. On time is terminated by PWMPH2<4:0>=pwm_count or
C1OUT or C2OUT.
bit 4-0
CMDLY<4:0>:
Typical complementary drive deadtime/overlap time.
00000
= Delay = 0.
00001
= Delay = 5 ns
00010
= Delay = 10 ns
.....
= . . .
11111
= Delay = 155 ns
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = bit is cleared
x = bit is unknown
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參數(shù)描述
PIC16F785-E/ML 功能描述:8位微控制器 -MCU 3.5 KB 128 RAM 18I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F785-E/P 功能描述:8位微控制器 -MCU 14KB 368 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F785-E/SO 功能描述:8位微控制器 -MCU 3.5KB FL 128R 18 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F785-E/SS 功能描述:8位微控制器 -MCU 3.5KB FL 128R 18 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16F785-I/ML 功能描述:8位微控制器 -MCU 3.5 KB 128 RAM 18I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
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