HT3015A
Pin Description
Pin No. Pin Name
1~6,
15, 24
7
8
KEY1~KEY16
NC
VDD
9
AUD
10
OSCO
11
OSCI
12
FLAG
13
VSS
14
TEST
I/O
Internal
Connection
Description
I Pull-High Trigger keys, low active, retriggerable keys
—
—
No connection
I
—
Positive power supply
O
PMOS
Output
Voice output for driving an external transistor
O
—
Oscillator output pin
I
—
Oscillator input pin
O
NMOS
Open Drain
3Hz flash, low active output, open drain
I
—
Negative power supply (GND)
I Pull-High For IC test only
Absolute Maximum Ratings
Supply Voltage ..............................–0.3V to 6.0V
Input Voltage................. VSS–0.3V to VDD+0.3V
Storage Temperature................. –50°C to 125°C
Operating Temperature................... 0°C to 70°C
Electrical Characteristics
Symbol
Parameter
VDD
IDD
ISTB
IAUD
IOL
VIL
VIH
FOSC
Supply Voltage
Operating Current
Stand-by Current
Max. AUD Output Current
FLAG Sink Current
“L” Input Voltage
“H” Input Voltage
System Frequency
Test Condition
VDD Condition
—
—
3V No load
3V
—
3V VOH=0.6V
3V VOL=0.3V
—
—
—
—
3V ROSC=100K
Min. Typ.
2.4
—
—
200
—
1
–1.5
–2
1.5
3.0
—
—
0.7VDD —
—
180
(Ta=25°C)
Max. Unit
5.0
400
5
—
—
0.2VDD
—
—
V
µA
µA
mA
mA
V
V
KHz
3
25th June ’96