Microchip Technology MCP3905RD-PM1 데이터 시트
© 2009 Microchip Technology Inc.
DS21948E-page 5
MCP3905/06
FIGURE 1-1:
Output Timings for Pulse Outputs and Negative Power Pin.
TIMING CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all parameters apply at AV
DD
= DV
DD
= 4.5V – 5.5V,
A
GND
, D
GND
= 0V, MCLK = 3.58 MHz; T
A
= -40°C to +85°C.
Parameter
Sym
Min
Typ
Max
Units
Comment
Frequency Output
F
OUT0
and F
OUT1
Pulse Width
(Logic-Low)
t
FW
—
275
—
ms
984376 MCLK periods
(Note 1)
(Note 1)
HF
OUT
Pulse Width
t
HW
—
90
—
ms
322160 MCLK periods
(Note 2)
(Note 2)
F
OUT0
and F
OUT1
Pulse Period
t
FP
Refer to
s
HF
OUT
Pulse Period
t
HP
Refer to
s
F
OUT0
to F
OUT1
Falling-Edge Time
t
FS2
—
0.5 t
FP
—
F
OUT0
to F
OUT1
Min Separation
t
FS
—
4/MCLK
—
F
OUT0
and F
OUT1
Output High Voltage
V
OH
4.5
—
—
V
I
OH
= 10 mA, DV
DD
= 5.0V
F
OUT0
and F
OUT1
Output Low Voltage
V
OL
—
—
0.5
V
I
OL
= 10 mA, DV
DD
= 5.0V
HF
OUT
Output High Voltage
V
OH
4.0
—
—
V
I
OH
= 5 mA, DV
DD
= 5.0V
HF
OUT
Output Low Voltage
V
OL
—
—
0.5
V
I
OL
= 5 mA, DV
DD
= 5.0V
High-Level Input Voltage
(All Digital Input Pins)
(All Digital Input Pins)
V
IH
2.4
—
—
V
DV
DD
= 5.0V
Low-Level Input Voltage
(All Digital Input Pins)
(All Digital Input Pins)
V
IL
—
—
0.85
V
DV
DD
= 5.0V
Input Leakage Current
—
—
±3
µA
V
IN
= 0, V
IN
= DV
DD
Pin Capacitance
—
—
10
pF
Note 1:
If output pulse period (t
FP
) falls below 984376*2 MCLK periods, then t
FW
= 1/2 t
FP
.
2:
If output pulse period (t
HP
) falls below 322160*2 MCLK periods, then t
HW
= 1/2 t
HP
.
3:
Specified by characterization, not production tested.
F
OUT0
t
FP
F
OUT1
HF
OUT
t
FW
t
HP
t
HW
t
FS
t
FS2
NEG