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AT30TSE002B 데이터시트 PDF




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부품번호 AT30TSE002B 기능
기능 Integrated Temperature Sensor
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AT30TSE002B 데이터시트, 핀배열, 회로
Features
Integrated Temperature Sensor (TS) + 2Kbit Serial EEPROM
Jedec (JC42.4) SO-DIMM SPD + TS compliant
Standard voltage operation
Optimized for voltage range: 2.7V to 3.6V
100khz and 400khz Compatibility
Two-wire Serial Interface: I2C/SMBus™ compatible
SMBus Timeout supported
Schmitt Trigger, filtered inputs for Noise Suppression
Industry Standard Green (Pb/Halide-free/RoHS Compliant) Package Options
8-pad Very Very Thin DFN (2 x 3 x 0.8mm)
Serial EEPROM Features
Permanent and Reversible Software Write Protection for the First-half of the Array
Software Procedure to Verify Write Protect Status
Internally organized as one block of 256-bytes (256 x 8)
Supports Byte and Page Write operation
Write 1-, 2-, 3-, up to 16-bytes at a time
Self-timed Write cycle (5ms max)
High-reliability
Endurance: 1 Million Write Cycles
Data Retention: 100 years
Low Operating current
EEPROM Write ~1.5mA (typ.)
EEPROM Read ~ 0.2mA (typ.)
Temperature Sensor Features
11-bit ADC Temp-to-Digital Converter with 0.125°C resolution
Programmable hysteresis threshold: off, 0°C, 1.5°C, 3°C, 6 °C
B-grade Accuracy
±1°C (max.) for +75°C to +95°C
±2°C (max.) for +40°C to +125°C
±3°C (max.) for -20°C to +125°C
Low Operating current
Temperature Sensor Active ~ 0.2mA (typ.)
Integrated
Temperature
Sensor with Serial
Electrically-erasable
and Programmable
Read-only Memory
Atmel AT30TSE002B
Preliminary
8711D–SEEPR–8/10




AT30TSE002B pdf, 반도체, 판매, 대치품
2. Pin Description
Atmel® AT30TSE002B requires no external components for operation except for pull-up resistors on SCL, SDA,
and EVENT pins. In order to provide effective noise protection and filtering, it is recommended that a decoupling
capacitor of 0.1µF be used and is located as close as possible to the device between VCC and ground pins.
SERIAL CLOCK (SCL): The SCL input is used to positive edge clock data into each EEPROM device and
negative edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open drain driven and may
be wire-ORed with any number of other open-drain or open collector devices.
Device Addresses (A2, A1, A0): The A2, A1, and A0 pins are device address inputs that are hardwired (directly
to GND or to VCC) for compatibility with two-wire devices. When the pins are hardwired, as many as eight devices
may be addressed on a single bus system. A device is selected when a corresponding hardware and software
match is true. If these pins are left floating, the A2, A1, and A0 pins will be internally pulled to GND. However,
Atmel recommends always connecting the address pins to a known state by direct connection to ground or VCC
but if using a pull-up resistor, Atmel recommends using 10k ohm or less.
The A0 pin is also overvoltage tolerant, allowing up to 10V for software write protection functionality. (See
Section 4 through Section 7)
Temperature Alert Output (EVENT): The EVENT pin outputs a signal when the temperature goes beyond the user-
programmed temperature limits and be configured in one of three modes; either Interrupt, comparator or critical
alarm modes.
The EVENT pin is an open-drain output and requires a pull-up resistor for proper operation (see Section 8).
Table 2-1. Pin Capacitance(1)
Applicable over recommended operating range from TA = 25°C, f = 100 kHz, VCC = +3.0V
Symbol Test Condition
Max
CI/O
CIN
Note:
Input/Output Capacitance (SDA), EVENT
Input Capacitance (A0, A1, A2, SCL)
1. This parameter is ensured by characterization only
8
6
Units
pF
pF
Conditions
VI/O = 0V
VIN = 0V
4 Atmel AT30TSE002B [Preliminary]
8711DSEEPR8/10

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AT30TSE002B 전자부품, 판매, 대치품
Temperature Sensor with Serial EEPROM
3. Memory Organization
Atmel® AT30TSE002B, 2K Serial EEPROM: The 2K memory is internally organized with 16 pages of 16-bytes
each. Random word addressing requires an 8-bit data word address.
4. Device Operation
CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an external device. Data on the
SDA pin may change only during SCL low time periods. (see Figure 4-4) Data changes during SCL high periods
will indicate a start or stop condition as defined below.
START CONDITION: A high-to-low transition of SDA with SCL high is a start condition which must precede any
other command (see Figure 4-5).
STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition. After a read sequence,
the stop command will place the device in a standby power mode (see Figure 4-5).
ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the EEPROM in 8-bit
words. The device sends a zero to acknowledge that it has received each word. This happens during the ninth
clock cycle.
STANDBY MODE: The AT30TSE002B features a low-power standby mode which is enabled:
a) Upon power-up
b) After the receipt of the STOP bit and the completion of any internal operations. The temperature sensor must
be disabled by the user for low-power standby mode.
Two-Wire Software Reset: After an interruption in protocol, power loss or system reset, any two-wire part can
be reset by following these steps:
a) Create a start bit condition
b) Clock nine cycles
c) Create another start bit followed by stop bit condition as shown below. The device is ready for next
communication after the above steps have been completed.
Figure 4-1.
Two-Wire Software Reset
Start Bit
Dummy Clock Cycles
Start Bit
Stop Bit
SCL
1 23
89
SDA
8711D–SEEPR–8/10
7

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부품번호상세설명 및 기능제조사
AT30TSE002B

Integrated Temperature Sensor

ATMEL Corporation
ATMEL Corporation

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