HT46RU25 Datasheet, PDF (1/63 Pages) Holtek Semiconductor Inc – A/D Type 8-Bit MCU

HT46RU25/HT46CU25
A/D Type 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0004E HT48 & HT46 MCU UART Software Implementation Method
- HA0005E Controlling the I2C bus with the HT48 & HT46 MCU Series
- HA0013E HT48 & HT46 LCM Interface Design
- HA0047E An PWM application example using the HT46 series of MCUs
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=8MHz: 3.3V~5.5V
· System clock (f_SYS): 400kHz~8MHz, 32.768kHz
· 48 bidirectional I/O lines (max.)
· One interrupt input shared with an I/O line
· One 8-bit and two 16-bit programmable timer/event
counter with prescaler and PFD (programmable
frequency divider) function and overflow interrupt
· 16K´16 program memory in two banks (Bank 0, 1)
· 576´8 (192´3) data memory RAM
(address from 040H~0FFH, bank 0~2)
· On-chip crystal and RC oscillator
· Watchdog Timer
· Supports PFD for sound generation
· _{Real Time Clock (RTC) with 8-bit prescaler}
· _{HALT function and wake-up feature reduce power}
consumption
· Up to 0.5ms instruction cycle with 8MHz system clock
at V_DD=5V
· 16-level subroutine nesting
· 8-channels 12-bit resolution A/D converter
· 4-channels (6+2)/(7+1)-bit PWM output shared with
four I/O lines
· Universal Asynchronous Receiver Transmitter
(UART)
· Bit manipulation instruction
· 16-bit table read instruction
· 63 powerful instructions
· All instructions in one or two machine cycles
· Low voltage reset function
· I²C Bus (slave mode)
· _{48/56-pin SSOP package}
General Description
The HT46RU25/HT46CU25 are 8-bit, high performance,
RISC architecture microcontroller devices specifically
designed for A/D applications that interface directly to an-
alog signals, such as those from sensors. The mask ver-
sion HT46CU25 is fully pin and functionally compatible
with the OTP version HT46RU25 device.
The advantages of low power consumption, I/O flexibil-
ity, programmable frequency divider, timer functions,
oscillator options, multi-channel A/D Converter, Pulse
Width Modulation function, UART function, I²C inter-
face, HALT and wake-up functions, enhance the versa-
tility of these devices to suit a wide range of A/D
application possibilities such as sensor signal process-
ing, motor driving, industrial control, consumer prod-
ucts, subsystem controllers, etc.
I²C is a trademark of Philips Semiconductors.
Rev. 1.30
1
March 9, 2007