ADT7420UCPZ-R2(RevA) Просмотр технического описания (PDF) - Analog Devices

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ADT7420UCPZ-R2
(Rev.:RevA)

±0.25°C Accurate, 16-Bit Digital I2C Temperature Sensor

Analog Devices 

Data Sheet

ADT7420

I2C TIMING SPECIFICATIONS

TA = −40°C to +150°C, VDD = 2.7 V to 5.5 V, unless otherwise noted. All input signals are specified with rise time (tR) = fall time (tF) = 5 ns

(10% to 90% of VDD) and timed from a voltage level of 1.6 V.

Table 2.

Parameter

Min Typ Max Unit Test Conditions/Comments

SERIAL INTERFACE 1

6F6F

See Figure 2

SCL Frequency

0

400 kHz

SCL High Pulse Width, tHIGH

0.6

μs

SCL Low Pulse Width, tLOW

1.3

μs

SCL, SDA Rise Time, tR

0.3

μs

SCL, SDA Fall Time, tF

0.3

μs

Hold Time (Start Condition), tHD:STA

0.6

μs

After this period, the first clock is generated

Setup Time (Start Condition), tSU:STA

0.6

μs

Relevant for repeated start condition

Data Setup Time, tSU:DAT

0.02

μs

Setup Time (Stop Condition), tSU:STO

0.6

μs

Data Hold Time, tHD:DAT (Master)

0.03

μs

Bus-Free Time (Between Stop and Start Condition), tBUF 1.3

μs

Capacitive Load for Each Bus Line, CB

400 pF

1 Sample tested during initial release to ensure compliance.

Timing Diagram

SCL

tLOW tR

tHD:STA

tHD:DAT

SDA

tBUF

P

S

tF

tHIGH

tSU:DAT

tHD:STA

tSU:STA

S

Figure 2. Serial Interface Timing Diagram

tSU:STO

P

Rev. A | Page 5 of 24

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