HT46R51A/HT46R52A
A/D Type 8-Bit OTP MCU
Technical Document
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Tools Information
FAQs
Application Note
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HA0003E Communicating between the HT48 & HT46 Series MCUs and the HT93LC46 EEPROM
HA0004E HT48 & HT46 MCU UART Software Implementation Method
HA0084E NiMH Battery Charger Demo Board - Using the HT46R52
HA0075E MCU Reset and Oscillator Circuits Application Note
Features
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Low-power fully static CMOS design
Operating voltage:
On-chip crystal and RC oscillator
6-level subroutine nesting
Watchdog Timer
f
f
SYS=4MHz: 2.2V~5.5V
SYS=8MHz: 3.3V~5.5V
Low voltage reset function
HALT function
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Program Memory:
1K´15 OTP (HT46R51A)
2K´15 OTP (HT46R52A)
Data memory:
Up to 0.5ms instruction cycle with 8MHz system clock
at VDD=5V
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1-channel 8-bit PWM output shared with an I/O line
PFD function
96´8 RAM (HT46R51A)
128´8 RAM (HT46R52A)
Bit manipulation instruction
A/D converter: 12bits´5Ch
External A/D converter reference voltage input pin
Table read instruction
63 powerful instructions
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14 bidirectional I/O lines
All instructions in one or two machine cycles
1 interrupt input shared with an I/O line
16-pin NSOP, 18-pin DIP, 20-pin SOP/SSOP pack-
age
8-bit programmable timer/event counter with over-
flow interrupt and 8-stage prescaler
General Description
The HT46R51A/HT46R52A 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 advan-
tages of low power consumption, I/O flexibility, timer
functions, oscillator options, multi-channel A/D con-
verter, Pulse Width Modulation function, HALT and
wake-up functions, watchdog timer, as well as low cost,
enhance the versatility of these devices 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.
Rev. 1.10
1
September 20, 2007