CF1155 Datasheet, PDF (1/7 Pages) Nippon Precision Circuits Inc – Melody LSIs

NIPPON PRECISION CIRCUITS INC.
CF1155 series
Melody LSIs
OVERVIEW
The CF1155 series are CMOS melody LSIs that, together with a battery and piezoelectric buzzer, operate in
one of 3 melody modes determined by input level or bonding options. They also feature an oscillator stop func-
tion in non-play mode and a variable pull-down resistance function that responds to input levels in order to
reduce power consumption, reduce cost, and extend battery life, making them ideal in a wide range of applica-
tions including greeting cards and toys.
FEATURES
s Requires few external components
s 1.2 to 3.6V wide operating voltage range
s Low power consumption
s 3 melody modes (bonding option)
s Oscillator stop function in non-play mode
s Power saving pull-down resistor built-in
s RC oscillator circuit
s Power-ON initialization function
s 2 V_SS pad connections
s Wide pitch dynamic range (G₃ to D₇)
s Chip form
PAD LAYOUT and COORDINATES
(Unit: µm)
VDD OUT OUT
3
2
1
TC 4
(1230,1230)
T2 5
T1 6
11 VSS
7
8
9
10
(0,0) VSS TO OSH LH
Chip size: 1.23 × 1.23mm
Chip thickness: 300 ± 30µm
T1, T2, TC, and TO bonding is not required.
Number
Pad
X
Y
1
OUT
930
1075
2
OUT
529
1075
3
VDD
155
1075
4
TC
155
887
5
T2
155
608
6
T1
155
420
7
VSS
223
155
8
TO
486
155
9
OSH
750
155
10
LH
1041
155
11
VSS
1075
420
ORDERING INFORMATION
Device
CF1155
Package
Chip form
NIPPON PRECISION CIRCUITS—1