HT1650 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT1650 Datasheet PDF : 19 Pages
| |||
PATENTED
HT1650
Pad No.
Pad Name
46
IRQ
47, 48 BZ, BZ
49~53 T1~T4, T000
I/O
Description
O Time base or Watchdog Timer overflow flag, NMOS open drain output.
O 2kHz or 4kHz frequency output pair (tristate output buffer)
I
Vary bias current pin
It is usually not connected
Absolute Maximum Ratings
Supply Voltage ...........................VSS-0.3V to VSS+5.5V
Input Voltage.............................VSS-0.3V to VDD+0.3V
Storage Temperature ............................-50°C to 125°C
Operating Temperature...........................-25°C to 75°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
D.C. Characteristics
Symbol
Parameter
VDD
Operating Voltage
IDD1
Operating Current
IDD2
Operating Current
IDD11
Operating Current
IDD22
Operating Current
ISTB
Standby Current
VIL
Input Low Voltage
VIH
Input High Voltage
IOL1
BZ, BZ, IRQ Sink Current
IOH1
BZ, BZ Source Current
IOL2
DB0~DB3 Sink Current
IOH2
DB0~DB3 Source Current
IOL3
LCD Common Sink Current
IOH3
LCD Common Source Current
Test Conditions
VDD
Conditions
Min.
¾
¾
2.7
3V No load/LCD ON
¾
5V On-chip RC oscillator
¾
3V No load/LCD ON
¾
5V Crystal oscillator
¾
3V No load/LCD OFF
¾
5V On-chip RC oscillator
¾
3V No load/LCD OFF
¾
5V Crystal oscillator
¾
3V No load, Power down ¾
5V mode
¾
3V
0
DB0~DB3, WR, CS, RD
5V
0
3V
2.4
DB0~DB3, WR, CS, RD
5V
4.0
3V VOL=0.3V
1.2
5V VOL=0.5V
3
3V VOH=2.7V
-0.9
5V VOH=4.5V
-2
3V VOL=0.3V
1.2
5V VOL=0.5V
3
3V VOH=2.7V
-0.9
5V VOH=4.5V
-2
3V VOL=0.3V
80
5V VOL=0.5V
180
3V VOH=2.7V
-40
5V VOH=4.5V
-90
Typ.
¾
150
250
135
200
15
50
2
3
¾
¾
¾
¾
¾
¾
2.5
6
-1.8
-4
2.5
6
-1.8
-4
160
360
-80
-180
Ta=25°C
Max. Unit
5.2
V
250 mA
370 mA
200
mA
300 mA
30
mA
70
mA
10
mA
10
mA
1
mA
2
mA
0.6
V
1.0
V
3
V
5
V
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
¾
mA
Rev. 1.80
5
November 9, 2010
Share Link: 