Features: Low-power fully static CMOS design
Operating voltage:
fSYS=4MHz: 2.2V~5.5V
fSYS=8MHz: 3.3V~5.5V
Program Memory:
2K14 OTP (HT46R53)
4K15 OTP (HT46R54)
Data memory: 888 RAM
A/D converter: 12bits*8Ch External A/D converter reference voltage input pin
22 bidirectional I/O lines
1 interrupt input shared with an I/O line
8-bit programmable timer/event counter with overflow interrupt and 7-stage prescaler
On-chip crystal and RC oscillator
6-level subroutine nesting
Watchdog Timer
Low voltage reset function
HALT function
Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V
1-channel 8-bit PWM output shared with an I/O line
PFD function
Bit manipulation instruction
Table read instruction
63 powerful instructions
All instructions in one or two machine cycles
28-pin SKDIP/SOP packagePinout
SpecificationsSupply Voltage ...........................VSS-0.3V to VSS+6.0V
Storage Temperature ............................-50C to 125C
Input Voltage..............................VSS-0.3V to VDD+0.3V
Operating Temperature...........................-40C to 85C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings 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.
DescriptionThe HT46R53/HT46R54 are 8-bit high performance, RISC architecture microcontroller devices specifically designed for A/D applications that interface directly to analog signals, such as those from sensors. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, multi-channel A/D converter, Pulse Width Modulation function, HALT and wake-up functions, watchdog timer, as well as low cost, enhance the versatility of these devices HT46R54 to suit a wide range of A/D application possibilities such as sensor signal processing, chargers, motor driving, industrial control, consumer products, subsystem controllers, etc.
HT46R54 Data Sheet
