ATSHA204A datasheet(39/93 Pages) MICROCHIP

39 / 93 page

Symbol

Parameter

Min

Max

Units

tSU.DAT

Data in Setup Time

100

tHD.DAT

Data in Hold Time

Input rise time(1)

300

Input Fall Time(1)

100

tAA

Clock Low to Data Out Valid

550

tDH

Data Out Hold Time

tBUF

Time bus must be free before a new transmission can start.(1)

500

Note:

Values are based on characterization, but are not tested.

AC measurement conditions:

•

RL (connects between SDA and VCC): 1.2 kΩ (for VCC +2.0V to +5.0V)

•

Input pulse voltages: 0.3VCC to 0.7VCC

•

Input rise and fall times: ≤ 50 ns

•

Input and output timing reference voltage: 0.5VCC

7.4

DC Parameters — All I/O Interfaces

Table 7-5. DC Parameters on All I/O Interfaces

Parameter

Symbol Min Typ Max Unit Notes

Ambient Operating

Temperature

-40

°C

Power Supply Voltage

VCC

2.0

5.5

Active Power Supply

Current

ICC

500

µA 0°C → +70°C, VCC = 3.3V.

—

mA -40°C → +85°C, VCC = 5.5V.

Idle Power Supply

Current

I IDLE

200

µA

When device is in idle mode, VCC = 3.3V,

VSDA and VSCL < 0.3V or > > VCC-0.3.

Sleep Current

I SLEEP

30 150

When device is in sleep mode, VCC ≤ 3.6V,

VSDA and VSCL < 0.3V or > VCC-0.3, TA ≤

55°C

µA

When device is in sleep mode; all operating

conditions.

Output Low Voltage

VOL

0.4

When device is in active mode, VCC = 2.5 –

5.5V.

Output Low Current

IOL

When device is in active mode, VCC = 2.5 –

5.5V,

VOL = 0.4V.

ATSHA204A

Electrical Characteristics

DS40002025A-page 39

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