Datasheet
Table Of Contents
- Features
- Temperature Sensor Features
- Serial EEPROM Features
- Table of Contents
- 1. Description
- 2. Pin Descriptions and Pinouts
- 3. Block Diagram
- 4. Device Communication
- 5. Device Addressing
- 6. Temperature Sensor
- 6.1 Functional Description
- 6.2 Register Descriptions
- 6.2.1 Pointer Register (8-bit Write Only, Address = N/A)
- 6.2.2 Capability Register (16-bit Read-only, Address = 00h)
- 6.2.3 Configuration Register (16-bit Read/Write, Address = 01h)
- 6.2.4 Upper Limit Register (16-bit Read/Write, Address = 02h)
- 6.2.5 Lower Limit Register (16-bit Read/Write, Address = 03h)
- 6.2.6 Critical Alarm Register (16-bit Read/Write, Address = 04h)
- 6.2.7 Temperature Register (16-bit Read-only, Address = 05h)
- 6.2.8 Manufacturer ID Register (16-bit Read-only, Address = 06h)
- 6.2.9 Device ID Register (16-bit Read-only, Address = 07h)
- 6.3 Temperature Sensor Write Operations
- 6.4 Temperature Sensor Read Operations
- 7. Serial EEPROM
- 8. Electrical Specifications
- 9. Ordering Code Detail
- 10. Ordering Information
- 11. Part Markings
- 12. Package Drawings
- 13. Revision History
9
AT30TSE004A [DATASHEET]
Atmel-8868C-DTS-AT30TSE004A-Datasheet_122013
Table 6-1 on page 13 shows the power-on register default values. The Upper Limit, Lower Limit, Critical Alarm,
and Configuration Registers should be programmed to their user desired values before the temperature sensor
can properly function. Before selecting the device and issuing protocol, a valid and stable supply voltage must
be applied and no protocol should be issued to the device for the time specified by the t
INIT
parameter. The
supply voltage must remain stable and valid until the end of the protocol transmission, and for a Serial EEPROM
Write instruction, until the end of the internal write cycle.
Figure 4-2. Power-Up Timing
4.6.1 Power-Up Conditions
Do Not Attempt
Device Access
During This Time
V
CC
Cold
Power-On Reset
Warm
Power-On Reset
V
POR (max)
V
CC (min)
Time
t
POFF
t
INIT
t
POR
Device Access
Permitted
V
POR (min)
Symbol Parameter Min Max Units
t
POR
Power-on Reset Time 10.0 ms
v
PON
Power-on Reset Threshold 1.6 V
v
POFF
Power-off Threshold for Warm Power-on Cycle 0.9 V
t
POFF
Warm Power Cycle Off Time 1.0 ms
t
INIT
Time from Power-On to First Command 10.0 ms