 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
CM7V-T1A Datasheet(PDF) 6 Page - Micro Analog systems |
|
||||||||||||||||||||||||||||||
CM7V-T1A Datasheet(HTML) 6 Page - Micro Analog systems |
|
|
6 / 50 page  MCP7952X/MCP7951X DS22300A-page 6 Preliminary 2012 Microchip Technology Inc. 2.0 PIN DESCRIPTION The descriptions of the pins are listed in Table 2-1. FIGURE 2-1: DEVICE PINOUTS 2.1 Chip Select (CS) A low level on this pin selects the device. A high level deselects the device and forces it into Standby mode. However, a programming cycle which is already initi- ated or in progress will be completed, regardless of the CS input signal. If CS is brought high during a program cycle, the device will go in Standby mode as soon as the programming cycle is complete. When the device is deselected, SO goes into the high-impedance state, allowing multiple parts to share the same SPI bus. A low-to-high transition on CS after a valid write sequence initiates an internal write cycle. After power- up, a low level on CS is required prior to any sequence being initiated. 2.2 Serial Output (SO) The SO pin is used to transfer data out of the MCP795XX. During a read cycle, data is shifted out on this pin after the falling edge of the serial clock. 2.3 Serial Input (SI) The SI pin is used to transfer data into the device. It receives instructions, addresses and data. Data is latched on the rising edge of the serial clock. 2.4 Serial Clock (SCK) The SCK is used to synchronize the communication between a master and the MCP795XX. Instructions, addresses or data present on the SI pin are latched on the rising edge of the clock input, while data on the SO pin is updated after the falling edge of the clock input. 2.5 Multifunction Pin (MFP) The MFP pin is shared with the clock divider and the alarms. This pin requires an external pull-up to VCC or VBAT. The pin remains low until such time that the inter- rupt flag in the register is cleared by software. This pin has a maximum sink current of 10mA. 2.6 X1, X2 The X1 and X2 pins connect to the on-board oscillator block. X1 is the input to the module and X2 is the out- put of the module. The device can be run from an external CMOS signal by feeding into the X1 pin. If driving X1 the X2 pin should be a No Connect. 2.7 VBAT The VBAT pin is a secondary supply input to maintain the Clock and SRAM contents when VCC is removed. TABLE 2-1: PIN DESCRIPTIONS X1 X2 VBAT Vcc MFP 1 2 3 4 MSOP/TDFN CS VSS SCK SO SI 5 6 7 10 9 8 Pin Name Pin Function VSS Ground X1 Xtal Input, External Oscillator Input X2 Xtal Output VBAT Battery Backup Input (3V Typ) VCC +1.8V to +3.6V Power Supply SI Serial Input SCK Serial Clock CS Chip Select MFP Multifunction Pin SO Serial Output |
Similar Part No. - CM7V-T1A |
|
Similar Description - CM7V-T1A |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
