HT46C24 Datasheet, PDF (1/49 Pages) Holtek Semiconductor Inc – A/D Type 8-Bit MCU

HT46R24/HT46C24
A/D Type 8-Bit MCU
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=8MHz: 3.3V~5.5V
· 40 bidirectional I/O lines (max.)
· 1 interrupt input shared with an I/O line
· Two 16-bit programmable timer/event counter with
overflow interrupt
· On-chip crystal and RC oscillator
· Watchdog Timer
· 8192´16 program memory
· 384´8 data memory RAM
· Supports PFD for sound generation
· 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 10-bit resolution A/D converter
· 4-channel 8-bit PWM output shared with
four I/O lines
· 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)
· 28-pin SKDIP/SOP, 48-pin SSOP package
General Description
The HT46R24/HT46C24 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 mask
version HT46C24 is fully pin and functionally compatible
with the OTP version HT46R24 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, I²C interface, HALT and
wake-up functions, enhance the versatility of these de-
vices to suit a wide range of A/D application possibilities
such as sensor signal processing, motor driving, indus-
trial control, consumer products, subsystem controllers,
etc.
I²C is a trademark of Philips Semiconductors.
Rev. 1.50
1
May 3, 2004