tcn75 Microchip Technology Inc., tcn75 Datasheet - Page 11

• Manufacturer Part Number: tcn75
• Description: 2-wire Serial Temperature Sensor And Thermal Monitor
• Manufacturer: Microchip Technology Inc.

TABLE 5-3:
The binary value in this register represents ambient temperature following a conversion cycle.
TABLE 5-4:
TABLE 5-5:
In the TEMP, T
value represents one-half degree (Celsius). The value
is in 2’s – complement binary format such that a read-
ing of 000000000b corresponds to 0°C. Examples of
this temperature to binary value relationship are shown
in Table 5-6.
TABLE 5-6:
TABLE 5-7:
© 2006 Microchip Technology Inc.
D[15]
D[15]
D[15]
MSB
MSB
MSB
Temperature
CONFIG
POINT
Name
TEMP
T
TSET
+125°C
+0.5°C
+25°C
-40°C
HYST
-25°C
-55°C
0.5°C
0°C
D[14]
D[14]
D[14]
D7
D7
D7
SET
Temperature Hysteresis
D[13]
D[13]
D[13]
Configuration Register
Ambient Temperature
Temperature Setpoint
TEMPERATURE (TEMP) REGISTER, 16 BITS, READ ONLY
TEMPERATURE SET POINT (T
HYSTERESIS (T
TEMPERATURE TO DIGITAL
VALUE CONVERSION
TCN75’S REGISTER SET SUMMARY
D6
D6
D6
Binary Value
0 11111010
0 00110010
0 00000001
0 00000000
1 11111111
1 11001110
1 10110000
1 10010010
, and T
Register Pointer
Description
D[12]
D[12]
D[12]
D5
D5
D5
HYST
D[11]
D[11]
D[11]
D4
D4
D4
registers, each unit
HYST
HEX Value
D[10]
D[10]
D[10]
1CE
0FA
1FF
1B0
D3
D3
D3
032
001
192
) REGISTER, 16 BITS, READ/WRITE
00
Width
16
16
16
8
8
D[9]
D[9]
D[9]
D2
D2
D2
SET
Read
D[8]
D[8]
D[8]
D1
D1
D1
) REGISTER, 16 BITS, READ/WRITE
X
X
X
X
X
LSB
LSB
LSB
D[7]
D[7]
D[7]
D[6]
D[6]
D[6]
X
X
X
Write
X
X
X
X
D[5]
D[5]
D[5]
X
X
X
D[4]
D[4]
D[4]
X
X
X
2’s Complement Format
2’s Complement Format
2’s Complement Format
D[3]
D[3]
D[3]
X
X
X
D[2] D[1]
D[2] D[1]
D[2] D[1]
DS21490C-page 11
TCN75
X
X
X
Notes
X
X
X
D[0]
D[0]
D[0]
X
X
X