HT48RB8

Features:

` Operating voltage:
    f<sub>SYS</sub>=6M/12MHz: 4.4V~5.5V
` Low voltage reset function
` 32 bidirectional I/O lines (max.)
` 8-bit programmable timer/event counter with overflow interrupt
` 16-bit programmable timer/event counter and overflow interrupts
` Crystal oscillator (6MHz or 12MHz)
` Watchdog Timer
` 6 channels 8-bit A/D converter
` USB1.1 low speed function
` 4 endpoints supported (endpoint 0 included)
` 4096x15 program memory ROM
` 160x8 data memory RAM
` HALT function and wake-up feature reduce power consumption
` 8-level subroutine nesting
` Up to 0.33s instruction cycle with 12MHz system clock at VDD=5V
` Bit manipulation instruction
` 15-bit table read instruction
` 63 powerful instructions
` All instructions in one or two machine cycles
` 28-pin SOP, 48-pin SSOP package


Pinout

Specifications

Supply Voltage ........................VSS-0.3V to VSS+6.0V
Input Voltage...........................VSS-0.3V to VDD+0.3V
Storage Temperature .......................... -50 to 125
Operating Temperature...........................-40 to 85

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.

Description

This device HT48RB8 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 included to reduce power consumption.