
NT91214/15 Series
V1.0
3
Absolute Maximum Ratings*
Supply Voltage (VDD). . . . . . . . . . . . . . . . . . . .
≤
6.0V
Input Voltage (V
IN
) . . . . . . .VSS - 0.3V to VDD + 0.3V
Output Voltage (V
OUT
) . . . . VSS - 0.3V to VDD + 0.3V
Output Voltage (V
OUT
)(
DP
,
XMIT MUTE
) . . . .
≤
1.2V
Tone Output Current (I
TONE
) . . . . . . . . . . . . . .
≤
50mA
Power Dissipation (P
D
) . . . . . . . . . . . . . . . . .
≤
500mW
Operating Temperature (Top). . . . . . . -20
°
C to +70
°
C
Storage Temperature (Tstg). . . . . . . -40
°
C to +150
°
C
*Comments
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of
this device at these or any other conditions above those
indicated in the operational sections of this specification
is not implied or intended. Exposure to the absolute
maximum rating conditions for extended periods may
affect device reliability.
DC Electrical Characteristics
(VDD = 3.5V, VSS = 0V, Fosc = 3.579MHz, Top = 25
°
C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Test
KT.
Operating Voltage
VDD
2.0
5.5
V
PULSE mode
A
2.0
5.5
TONE mode
Memory Retention Voltage
V
MR
1
V
-
Memory Retention Current
I
MR
0.05
0.4
μ
A
VDD = 1.0V,
HK
= VDD
All outputs unloaded
-
Operating Current
I
DDP
0.32
1.0
mA
Pulse mode
All outputs
unloaded
A
I
DDT
0.6
2.0
Tone mode
Standby Current
Iso
0.03
0.05
μ
A
HK
= VDD
= 1.5V
All outputs
unloaded,
no key
selected
A
0.5
10
HK
= VSS
Input Current
V
IH
0.8
1
VDD
V
IL
0
0.2
R1
-
R4
Input Current
I
R
115
μ
A
C
Tone out Voltage
V
OC
584
730
876
mVp-p
Column
VDD = 3.5V
R
L
= 5K
D
V
OR
456
570
684
Row
HFI
Pull Low Current
I
HFI
5
μ
A
VDD = 3.5V (Note 1)
HFI
pin connected to 0V
B