Os motores de busca de Datasheet de Componentes eletrônicos |
|
TC74A4-50VAT Folha de dados(PDF) 9 Page - Microchip Technology |
|
TC74A4-50VAT Folha de dados(HTML) 9 Page - Microchip Technology |
9 / 16 page © 2002 Microchip Technology Inc. DS21462B-page 9 TC74 4.0 REGISTER SET AND PROGRAMMER’S MODEL TABLE 4-2: CONFIGURATION REGISTER (CONFIG); 8 BITS, READ/ WRITE) FIGURE 4-1: DATA_RDY, SHDN OPERATION LOGIC DIAGRAM 4.1 Temperature Register (TEMP), 8 Bits, READ ONLY The binary value (2’s complement format) in this regis- ter represents temperature of the onboard sensor following a conversion cycle. The registers are automatically updated in an alternating manner. TABLE 4-3: TEMPERATURE REGISTER (TEMP) In the temperature data registers, each unit value repre- sents one degree (Celsius). The value is in 2’s complement binary format such that a reading of 0000 0000b corresponds to 0°C. Examples of this tempera- ture to binary value relationship are shown in Table 4-4 . 4.2 Register Set Summary The TC74 register set is summarized in Table 4-5. All registersare8bitswide. TABLE 4-1: COMMAND BYTE DESCRIPTION (SMBUS READ_BYTE AND WRITE_BYTE) COMMAND CODE FUNCTION RTR 00h Read Temperature (TEMP) RWCR 01h Read/Write Configuration (CONFIG) BIT POR FUNCTION TYPE OPERATION D[7] 0 STANDBY Switch Read/ Write 1 = standby, 0 = normal D[6] 0 Data Ready* Read Only 1=ready 0 = not ready D[5]-D[0] 0 Reserved - Always returns zero when read N/A N/A *Note: DATA_RDY bit RESET at power-up and SHDN enable. VDD DATA_RDY SHDN tconv tconv D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] MSB X X X X X X LSB TABLE 4-4: TEMPERATURE TO DIGITAL VALUE CONVERSION (TEMP) ACTUAL TEMP. REGISTERED TEMP. BINARY HEX +130.00°C +127°C 0111 1111 +127.00°C +127°C 0111 1111 +126.50°C +127°C 0111 1111 +25.25°C +25°C 0001 1001 +0.50°C +1°C 0000 0001 +0.25°C 0°C 0000 0000 0.00°C 0°C 0000 0000 -0.25°C 0°C 0000 0000 -0.50°C 0°C 0000 0000 -0.75°C -1°C 1111 1111 -1.00°C -1°C 1111 1111 -25.00°C -25°C 1110 0111 -25.25°C -25°C 1110 0110 -54.75°C -55°C 1100 1001 -55.00°C -55°C 1100 1001 -65.00°C -65°C 1011 1111 TABLE 4-5: TC74 REGISTER SET SUMMARY NAME DESCRIPTION POR State READ WRITE TEMP Internal Sensor Temp. (2’s Complement) 0000 0000b* CONFIG CONFIG Register 0000 0000b *Note: The TEMP resigister will be immediately updated by the A/D converter after the DATA_RDY Bit goes High. |
Nº de peça semelhante - TC74A4-50VAT |
|
Descrição semelhante - TC74A4-50VAT |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |