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LM12L438CIWM データシート(PDF) 11 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM12L438CIWM
部品情報  Sign Data Acquisition System with Serial I/O and Self-Calibration
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM12L438CIWM データシート(HTML) 11 Page - National Semiconductor (TI)

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20 Electrical Specifications (Continued)
23 DIGITAL SWITCHING CHARACTERISTICS
The following specifications apply to the LM12434 and LM12 L 438 for VAa
e
VDae 5V 33V
AGND e DGND e 0V CL (load capacitance) on output lines e 80 pF unless otherwise specified
Boldface limits apply for TA e TJ e TMIN to TMAX all other limits for TA e TJ e 25 C (Notes 6 7 and 9) (Continued)
232 8051 Interface Mode
Symbol
Parameter
Conditions
Typical
Limits
Units
(See
Figure Below)
(Note 10)
(Note 11)
(Limit)
t9
TXD (Serial Clock Period)
125 250
ns (min)
t10
CS Set-Up Time to First
25 40
ns (min)
Clock Transition
t11
Data in Valid Set-Up Time to
40
ns (min)
TXD Clock High
t12
Data in Valid Hold Time
40 90
ns (min)
from TXD Clock High
t13
Data Out Hold Time
70 120
ns (max)
from TXD Clock High
t14
CS Hold Time from Last TXD
High in a Read or Write Cycle
25 50
ns (min)
(Excluding Burst Read Cycle)
t15
CS Inactive to CS Active Again
3
CLK Cycle
(min)
t16
SCLK Idle Time between the
End of the Command Byte
3
CLK Cycle
Transfer and the Start of the
(min)
Data Transfer in Read Cycles
CLK is the main clock input to the device pin number 24 in PLCC package or pin number 2 in SO package
TLH11879 – 21
11


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