HT46R52 Holtek Semiconductor, HT46R52 Datasheet - Page 3

• Manufacturer Part Number: HT46R52
• Description: (HT46R51 / HT46R52) A/D Type 8-Bit OTP MCU
• Manufacturer: Holtek Semiconductor

Pin Description
Absolute Maximum Ratings
Supply Voltage ...........................V
Input Voltage..............................V
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
D.C. Characteristics
Rev. 1.40
V
I
I
I
I
PA0~PA2
PA3/PFD
PA4/TMR
PA5/INT
PA6~PA7
PB0/AN0
PB1/AN1
PB2/AN2
PB3/AN3
PB4/AN4
PD0/PWM
OSC1
OSC2
RES
VDD
VSS
VREF
DD1
DD2
DD3
STB1
Pin Name
Symbol
DD
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 reliabil-
ity.
Operating Voltage
Operating Current (Crystal OSC)
Operating Current (RC OSC)
Operating Current
Standby Current (WDT Enabled)
I/O
I/O
I/O
I/O
O
I
I
I
Crystal or RC
PD0 or PWM
PA3 or PFD
Wake-up
Options
Pull-high
Pull-high
Pull-high
Parameter
SS
SS
Bidirectional 8-bit input/output port. Each individual bit on this port can be config-
ured as a wake-up input by configuration option. Software instructions determine
if the pin is a CMOS output or Schmitt trigger input. Configuration options deter-
mine which pins on this port have pull-high resistors. The PFD, TMR and external
interrupt input are pin-shared with PA3, PA4, and PA5 respectively.
Bidirectional 5-bit input/output port. Software instructions determine the CMOS
output or Schmitt trigger input with or without pull-high resistor. Configuration op-
tions determine which pins on this port have pull-high resistors. PB is pin-shared
with the A/D input pins. The A/D inputs are selected via software instructions
Once selected as an A/D input, the I/O function and pull-high resistor functions
are disabled automatically.
Bidirectional 1-bit input/output port. Software instructions determine the CMOS
output or Schmitt trigger input with or without pull-high resistor. One configuration
option determines which pin on this port has pull-high resistor. PD0 is pin-shared
with the PWM output selected via configuration option.
OSC1, OSC2 are connected to an external RC network or external crystal (deter-
mined by configuration option) for the internal system clock. For external RC sys-
tem clock operation, OSC2 is an output pin for 1/4 system clock.
Schmitt trigger reset input, active low
Positive power supply
Negative power supply, ground
A/D Converter Reference Input voltage pins. Connect this pin to the desired A/D
reference voltage. The VREF pin is connected to V
0.3V to V
0.3V to V
DD
SS
V
3V No load, f
5V
3V No load, f
5V
5V
3V
5V
DD
+6.0V
+0.3V
f
f
ADC disabled
ADC disabled
No load, f
ADC disabled
No load, system HALT
SYS
SYS
Test Conditions
=4MHz
=8MHz
3
Conditions
Storage Temperature ............................ 50 C to 125 C
Operating Temperature........................... 40 C to 85 C
SYS
SYS
SYS
=4MHz
=4MHz
=8MHz
Description
Min.
2.2
3.3
DD
HT46R51/HT46R52
for the 18-pin DIP package
Typ.
0.6
0.8
2.5
2
4
Max.
5.5
5.5
1.5
1.5
10
4
4
8
5
July 12, 2005
Ta=25 C
Unit
mA
mA
mA
mA
mA
V
V
A
A