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鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉锛� | PIC16F722A-E/SS |
| 寤犲晢锛� | Microchip Technology |
| 鏂囦欢闋佹暩(sh霉)锛� | 74/286闋� |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | MCU 8BIT 2K FLASH XLP 28-SSOP |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 47 |
| 绯诲垪锛� | PIC® XLP™ 16F |
| 鏍稿績铏曠悊鍣細 | PIC |
| 鑺珨灏哄锛� | 8-浣� |
| 閫熷害锛� | 20MHz |
| 閫ｉ€氭€э細 | I²C锛孲PI锛孶ART/USART |
| 澶栧湇瑷�(sh猫)鍌欙細 | 娆犲妾㈡脯/寰�(f霉)浣�锛孭OR锛孭WM锛學DT |
| 杓稿叆/杓稿嚭鏁�(sh霉)锛� | 25 |
| 绋嬪簭瀛樺劜鍣ㄥ閲忥細 | 3.5KB锛�2K x 14锛� |
| 绋嬪簭瀛樺劜鍣ㄩ鍨嬶細 | 闁冨瓨 |
| RAM 瀹归噺锛� | 128 x 8 |
| 闆诲 - 闆绘簮 (Vcc/Vdd)锛� | 1.8 V ~ 5.5 V |
| 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� | A/D 11x8b |
| 鎸暕鍣ㄥ瀷锛� | 鍏�(n猫i)閮� |
| 宸ヤ綔婧害锛� | -40°C ~ 125°C |
| 灏佽/澶栨锛� | 28-SSOP锛�0.209"锛�5.30mm 瀵級 |
| 鍖呰锛� | 鎵樼洡 |
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2010-2012 Microchip Technology Inc.
DS41417B-page 165
PIC16(L)F722A/723A
17.2
I2C Mode
The SSP module, in I2C mode, implements all slave
functions, except general call support. It provides
interrupts on Start and Stop bits in hardware to facilitate
firmware implementations of the master functions. The
SSP module implements the I2C Standard mode
specifications:
I2C Slave mode (7-bit address)
I2C Slave mode (10-bit address)
Start and Stop bit interrupts enabled to support
firmware Master mode
Address masking
Two pins are used for data transfer; the SCL pin (clock
line) and the SDA pin (data line). The user must
configure the two pin鈥檚 data direction bits as inputs in
the appropriate TRIS register. Upon enabling I2C
mode, the I2C slew rate limiters in the I/O pads are
controlled by the SMP bit of SSPSTAT register. The
SSP module functions are enabled by setting the
SSPEN bit of SSPCON register.
Data is sampled on the rising edge and shifted out on
the falling edge of the clock. This ensures that the SDA
signal is valid during the SCL high time. The SCL clock
input must have minimum high and low times for proper
operation.
Refer
to
FIGURE 17-7:
I2C MODE BLOCK
DIAGRAM
FIGURE 17-8:
TYPICAL I2C
CONNECTIONS
The SSP module has six registers for I2C operation.
They are:
SSP Control (SSPCON) register
SSP Status (SSPSTAT) register
Serial Receive/Transmit Buffer (SSPBUF) register
SSP Shift Register (SSPSR), not directly
accessible
SSP Address (SSPADD) register
SSP Address Mask (SSPMSK) register
17.2.1
HARDWARE SETUP
Selection of I2C mode, with the SSPEN bit of the
SSPCON register set, forces the SCL and SDA pins to
be open drain, provided these pins are programmed as
inputs by setting the appropriate TRISC bits. The SSP
module will override the input state with the output data,
when required, such as for Acknowledge and slave-
transmitter sequences.
Read
Write
SSPSR Reg
Match Detect
SSPADD Reg
Start and
Stop bit Detect
SSPBUF Reg
Internal
Data Bus
Addr Match
SCL
SDA
Shift
Clock
MSb
LSb
SSPMSK Reg
Note:
Pull-up resistors must be provided
externally to the SCL and SDA pins for
proper operation of the I2C module.
Slave 1
Master
SDA
SCL
VDD
SDA
SCL
Slave 2
SDA
SCL
(optional)
鐩搁棞(gu膩n)PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
| V24A15C400BF | CONVERTER MOD DC/DC 15V 400W |
| V24A15C400BL3 | CONVERTER MOD DC/DC 15V 400W |
| LTC4315CMS#TRPBF | IC 2WIRE BUS BUFFER 12MSOP |
| V24A15C400BL2 | CONVERTER MOD DC/DC 15V 400W |
| V24A15C400B3 | CONVERTER MOD DC/DC 15V 400W |
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鍙冩暩(sh霉)鎻忚堪 |
|---|---|
| PIC16F722A-I/ML | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB Flsh 1.8V-5.5V 16 MHz int Osc RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F722A-I/MV | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB Flsh 1.8V-5.5V 16 MHz int Osc RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F722A-I/SO | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB Flsh 1.8V-5.5V 16 MHz int Osc RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F722A-I/SP | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB Flsh 1.8V-5.5V 16 MHz int Osc RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
| PIC16F722A-I/SS | 鍔熻兘鎻忚堪:8浣嶅井鎺у埗鍣� -MCU 3.5KB Flsh 1.8V-5.5V 16 MHz int Osc RoHS:鍚� 鍒堕€犲晢:Silicon Labs 鏍稿績:8051 铏曠悊鍣ㄧ郴鍒�:C8051F39x 鏁�(sh霉)鎿�(j霉)绺界窔瀵害:8 bit 鏈€澶ф檪閻橀牷鐜�:50 MHz 绋嬪簭瀛樺劜鍣ㄥぇ灏�:16 KB 鏁�(sh霉)鎿�(j霉) RAM 澶у皬:1 KB 鐗囦笂 ADC:Yes 宸ヤ綔闆绘簮闆诲:1.8 V to 3.6 V 宸ヤ綔婧害鑼冨湇:- 40 C to + 105 C 灏佽 / 绠遍珨:QFN-20 瀹夎棰�(f膿ng)鏍�:SMD/SMT |
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