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SA56004GDP Datasheet(PDF) 10 Page - NXP Semiconductors |
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SA56004GDP Datasheet(HTML) 10 Page - NXP Semiconductors |
10 / 36 page SA56004X_5 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 05 — 22 May 2008 10 of 36 NXP Semiconductors SA56004X Digital temperature sensor with overtemperature alarms 7.8.5 Conversion rate register (CR) The conversion rate register is used to store programmable conversion data, which defines the time interval between conversions in the standard free-running auto convert mode. Table 9 shows all applicable data values and rates for the SA56004X. Only the 4 LSBs of the register are used and the other bits are reserved for future use. The register is R/W using the read address 04h and write address 0Ah. The POR default conversion data is 08h. 7.8.6 Temperature limit registers [1] POR default LHS = RHSHV = 46h (70 °C). [2] POR default RHSLB = 00h. [1] POR default LLS = RLSHV = 00h. [2] POR default RLSLB = 00h (0 °C). [1] POR default LCS = RCS = 55h (85 °C). Table 9. Conversion rate control byte (CR) Data value Conversion rate (Hz) 00h 0.06 01h 0.12 02h 0.25 03h 0.50 04h 1.0 05h 2 06h 4 07h 8 08h 16 09h 32 0Ah to FFh n/a Table 10. LHS, RHSHB, RHSLB - Local and remote HIGH setpoint registers Byte High byte (read only address 05h, 07h; write address 0Bh, 0Dh)[1] Low byte (read/write address 13h)[2] Bit D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 Value sign 64 32 16 8421 0.5 0.25 0.125 00000 Table 11. LLS, RLSHB, RLSLB - Local and remote LOW setpoint registers Byte High byte (read address 06h, 08h; write address 0Ch, 0Eh)[1] Low byte (read/write address 14h)[2] Bit D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 Value sign 64 32 16 8421 0.5 0.25 0.125 00000 Table 12. LCS, RCS - Local and remote T_CRIT registers Byte Single high byte (read/write address 20h, 19h)[1] Bit D7 D6 D5 D4 D3 D2 D1 D0 Value sign 64 32 16 8 4 2 1 |
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