Texas Instruments LMK01000 Evaluation Board LMK01000EVAL/NOPB LMK01000EVAL/NOPB 데이터 시트
제품 코드
LMK01000EVAL/NOPB
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
SNAS437G – FEBRUARY 2008 – REVISED OCTOBER 2009
Electrical Characteristics
(continued)
(3.15 V
≤
Vcc
≤
3.45 V, -40 °C
≤
T
A
≤
85 °C, Differential Inputs/Outputs; 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
Digital MICROWIRE Interfaces
(11)
V
IH
High-Level Input Voltage
1.6
Vcc
V
V
IL
Low-Level Input Voltage
0.4
V
I
IH
High-Level Input Current
V
IH
= Vcc
-5.0
5.0
µA
I
IL
Low-Level Input Current
V
IL
= 0
-5.0
5.0
µA
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
(11) Applies to CLKuWire, DATAuWire, and LEuWire.
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. The slew rate of CLKuWire, DatauWire, and LEuWire
should be at least 30 V/µs.
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. The slew rate of CLKuWire, DatauWire, and LEuWire
should be at least 30 V/µs.
8
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