AD5273BRJ10-R2 datasheet(10/20 Pages) AD

10 / 20 page

AD5273

–10–

SCL

SDA

Figure 1. Interface Timing Diagram

Table I. SDA Write Mode Bit Format

010110

XXXXXXXA

SLAVE ADDRESS BYTE

INSTRUCTION BYTE

DATA BYTE

Table II. SDA Read Mode Bit Format

VDD = 5V/DIV

VW = 1V/DIV

OTP PROGRAMMED AT MS

VDD = 5.5V

VA = 5.5V

RAB = 10k

5 s

TPC 25. Power-Up Settling Time, after Fuses Blown

CODE – Decimal

064

0.01

1.0

0.1

VA = VB= OPEN

TA = 25 C

RAB = 10k

RAB = 1k

RAB = 50k

RAB = 100k

TPC 26. IWB_MAX vs. Code

SDA BITS DEFINITIONS AND DESCRIPTIONS

S = Start Condition

P = Stop Condition

A = Acknowledge

X = Don’t Care

T = OTP Programming Bit. Logic 1 programs wiper position

permanently.

D5, D4, D3, D2, D1, D0 = Data Bits

E1, E0 = OTP Validation Bits

0, 0 = Ready to Program

0, 1 = Test Fuse not Blown Successfully. (Check Setup.)

1, 0 = Fatal Error. Retry.

1, 1 = Programmed Successfully. No Further Adjustments

Possible.

010110

SLAVE ADDRESS BYTE

DATA BYTE

REV. 0

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