LM12434CIWM NSC [National Semiconductor], LM12434CIWM Datasheet - Page 10

• Manufacturer Part Number: LM12434CIWM
• Description: Sign Data Acquisition System with Serial I/O and Self-Calibration
• Manufacturer: NSC [National Semiconductor]

(See Figure Below)
t
t
t
t
t
t
t
t
2 0 Electrical Specifications
2 3 DIGITAL SWITCHING CHARACTERISTICS The following specifications apply to the LM12434 and LM12 L 438 for V
Boldface limits apply for T
2 3 1 Standard Mode Interface (MICROWIRE PLUS
e
1
2
3
4
5
6
7
8
CLK is the main clock input to the device pin number 24 in PLCC package or pin number 2 in SO package
V
D
Symbol
a e
5V 3 3V
AGND
SCLK (Serial Clock) Period
CS Set-Up Time to First
Clock Transition
DI Valid Set-Up Time to Data
Capture Transition of SCLK
DI Valid Hold Time to Data
Capture Transition of SCLK
DO Hold Time from Data Shift
Transition of SCLK
CS Hold Time from Last SCLK
Transition in a Read or Write Cycle
(Excluding Burst Read Cycle)
CS Inactive to CS Active Again
SCLK Idle Time between the
End of the Command Byte
Transfer and the Start of the
Data Transfer in Read Cycles
e
A
e
DGND
Parameter
T
J
e
e
T
MIN
0V C
(Continued)
to T
L
(load capacitance) on output lines
TM
MAX
SCI and SPI QSPI)
all other limits for T
10
Conditions
A
e
(Note 10)
Typical
T
J
e
e
25 C (Notes 6 7 and 9)
80 pF unless otherwise specified
100 125
70 120
(Note 11)
25 30
Limits
40
25
0
3
3
TL H 11879 – 18
CLK Cycle
CLK Cycle
ns (max)
ns (min)
ns (min)
ns (min)
ns (min)
ns (min)
(Limit)
(min)
(min)
Units
A
a