HT13R90
Pad Assignment
Mask
Pin Name
I/O
Description
Option
Outputs a continuous duty cycle or pulse or single period duty cycle
depending upon the OMOD configuration option.
LED0/OUT0
O
OMOD
LED1/OUT1/BZ
LED2/OUT2/BZ
RESET
O
O
I
L1xx Option
L2xx Option
¾
Indicates the system operational status. The LED related options deter-
mine the LED or Buzzer output format.
Schmitt trigger reset input, active low.
The system oscillator can be external crystal oscillator or internal RC
oscillator determined by a configuration option for the internal system
clock. OSC, OSC2 are connected to an external crystal when the exter-
nal crystal oscillator is selected.
OSC1
OSC2
I
Crystal
or IRC
O
¾
¾
¾
¾
VDD
VSS
Positive power supply
Negative power supply, ground
Absolute Maximum Ratings
Supply Voltage ..........................VSS-0.3V to VSS+6.0V
Input Voltage .............................VSS-0.3V to VDD+0.3V
Storage Temperature ...........................-50°C to 125°C
Operating Temperature ..........................-40°C to 85°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
Ta=25°C
Test Conditions
Conditions
Symbol
VDD
Parameter
Min.
Typ.
Max.
Unit
VDD
¾
fSYS=32768Hz
Operating Voltage
2.2
¾
¾
¾
¾
5.5
3
V
¾
¾
¾
¾
¾
3V
5V
3V
5V
mA
mA
mA
mA
Operating Current
IDD1
(Crystal OSC, RC OSC)
No load, all output pins
non-toggle*,
5
2
f
SYS=32768Hz
Operating Current
(RC OSC)
IDD2
3
Standby Current (WDT Enabled
and WDT RC OSC On)
ISTB
No load, system HALT
1
¾
¾
¾
mA
VIL
VIH
0.4VDD
VDD
¾
Input Low Voltage (RES)
Input High Voltage (RES)
0
0.9VDD
4
V
¾
¾
¾
¾
¾
¾
V
3V
5V
3V
5V
8
mA
mA
mA
mA
IOL
V
OL=0.1VDD
OH=0.9VDD
I/O Port Sink Current
10
20
-4
-10
¾
-2
¾
IOH
V
I/O Port Source Current
-5
¾
Note: ²*² LED1/2 has no carrier, level, and all options set to the lowest frequency. Measured in the non-toggle state.
Rev. 1.10
2
July 10, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
