HT48RB8
8-Bit USB Type OTP MCU
Features
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Operating voltage:
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4096麓15 program memory ROM
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160麓8 data memory RAM
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HALT function and wake-up feature reduce power
f
SYS
=6M/12MHz: 4.4V~5.5V
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Low voltage reset function
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32 bidirectional I/O lines (max.)
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8-bit programmable timer/event counter with over-
consumption
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8-level subroutine nesting
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Up to 0.33ms instruction cycle with 12MHz system
flow interrupt
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16-bit programmable timer/event counter and over-
flow interrupts
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Crystal oscillator (6MHz or 12MHz)
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Watchdog Timer
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6 channels 8-bit A/D converter
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USB1.1 low speed function
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4 endpoints supported (endpoint 0 included)
clock at V
DD
=5V
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Bit manipulation instruction
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15-bit table read instruction
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63 powerful instructions
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All instructions in one or two machine cycles
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28-pin SOP, 48-pin SSOP package
General Description
This device is an 8-bit high performance RISC-like
microcontroller designed for USB product applications.
It is particularly suitable for use in products such as
mice, keyboards and joystick. A HALT feature is in-
cluded to reduce power consumption.
Rev. 1.30
1
February 10, 2003