t
CES
t
CS
D27 D26 D25 D24
t
CH
t
CWH
t
CWL
D23 D0 A3 A2 A1 A0
MSB LSB
DATAuWire
CLKuWire
LEuWire
t
ES
t
EWH
LMK03200
SNAS478C –JULY 2009–REVISED APRIL 2013
www.ti.com
Electrical Characteristics
(1)
(continued)
(3.15 V ≤ Vcc ≤ 3.45 V, -40 °C ≤ T
A
≤ 85 °C, Differential Inputs/Outputs; Vboost=0; except as specified. Typical values
represent most likely parametric norms at Vcc = 3.3 V, T
A
= 25 °C, and at the Recommended Operation Conditions at the
time of product characterization and are not guaranteed).
Symbol Parameter Conditions Min Typ Max Units
MICROWIRE Timing
t
CS
Data to Clock Set Up Time See Data Input Timing 25 ns
t
CH
Data to Clock Hold Time See Data Input Timing 8 ns
t
CWH
Clock Pulse Width High See Data Input Timing 25 ns
t
CWL
Clock Pulse Width Low See Data Input Timing 25 ns
t
ES
Clock to Enable Set Up Time See Data Input Timing 25 ns
t
CES
Enable to Clock Set Up Time See Data Input Timing 25 ns
t
EWH
Enable Pulse Width High See Data Input Timing 25 ns
3.5 Serial Data Timing Diagram
Data bits set on the DATAuWire signal are clocked into a shift register, MSB first, on each rising edge of
the CLKuWire signal. On the rising edge of the LEuWire signal, the data is sent from the shift register to
the addressed register determined by the LSB bits. After the programming is complete the CLKuWire,
DATAuWire, and LEuWire signals should be returned to a low state. It is recommended that the slew rate
of CLKuWire, DATAuWire, and LEuWire should be at least 30 V/μs.
10 Electrical Specifications Copyright © 2009–2013, Texas Instruments Incorporated
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