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| 型號： | CF1156SERIES |
| 英文描述： | Melody IC |
| 中文描述： | 和弦IC |
| 文件頁數(shù)： | 2/7頁 |
| 文件大小： | 64K |
| 代理商： | CF1156SERIES |
CF1155 series
NIPPON PRECISION CIRCUITS—2
PAD DESCRIPTION
SPECIFICATIONS
Absolute Maximum Ratings
Electrical Characteristics
T
a
= 25
°
C, V
SS
= 0V, V
DD
= 1.5V
Name
Function
OSH, LH
Melody mode control inputs. Built-in pull-down resistors mean LOW-level signals are obtained when inputs are open circuit. The
resistance of the pull-down resistor varies with the applied voltage, as described in the Electrical Characteristics.
OUT, OUT
Piezoelectric speaker driver outputs. Both pins are LOW in non-play mode. OUT is LOW and OUT is HIGH during output for a
musical rest note. Both pins are HIGH during the gap between musical notes.
VDD
Supply. The rear surface of the chip is V
DD
level.
VSS
Ground
T1, T2, TC
Test inputs. Pull-down resistor built-in.
TO
Test output. The oscillator frequency (typ. 50kHz) is output for monitoring purposes.
Parameter
Symbol
Condition
Rating
Unit
Supply voltage range
V
DD
V
SS
0.3 to 5.0
V
Input voltage range
V
IN
V
SS
0.2 to V
DD
+ 0.2
V
Operating temperature range
T
opr
20 to 80
°
C
Storage temperature range
T
stg
65 to 150
°
C
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
Operating voltage
V
DD
1.2
1.5
3.6
V
Current consumption
1
1. Measurement circuit
I
DD1
Non-play mode
–
0.01
0.3
μA
Current consumption
2
I
DD2
Melody modes: OUT, OUT open
–
25
50
μA
LH, OSH LOW-level input voltage
V
IL
–
–
V
SS
+ 0.2
V
LH, OSH HIGH-level input voltage
V
IH
V
DD
– 0.2
–
–
V
LH, OSH LOW-level input current
I
IL
V
IL
= 0.4V
0.7
1.5
3.0
μA
LH, OSH HIGH-level input current
I
IH
V
IH
= 1.5V
0.7
1.5
3.0
μA
OUT, OUT LOW-level output current
I
OL
V
OL
= 0.75V
2.0
–
–
mA
OUT, OUT HIGH-level output current
I
OH
V
OH
= 0.75V
2.0
–
–
mA
TO oscillator frequency
f
OS C
f/f
35
50
65
kHz
TO frequency stability (relative to
voltage)
1
V
DD
= 1.2 to 2.0V
–
1
–
%/0.1V
f/f
2
V
DD
> 2.0V
–
2
–
%/1V
TO oscillator start voltage
V
DOB
–
–
1.2
V
TO oscillator stop voltage
V
DOS
–
–
1.2
V
VDD
VSS
A
1.5V
2. Measurement circuit
VDD
LH
VSS
A
1.5V
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