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HT82K94A Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT82K94A Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 43 page  HT82K94E/HT82K94A USB Multimedia Keyboard Encoder 8-Bit MCU Rev. 2.40 1 November 5, 2014 General Description This device is an 8-bit high performance RISC architec- ture microcontroller designed for USB product applica- tions. It is particularly suitable for use in products such as keyboards and keyboard with calculator. A HALT fea- ture is included to reduce power consumption. The mask version HT82K94A is fully pin and function- ally compatible with the OTP version HT82K94E device. Features · Operating voltage: fSYS=6MHz: 2.3V~5.5V fSYS=12MHz: 3.0V~5.5V · 40 bidirectional I/O lines (max.) · 8-bit programmable timer/event counter with overflow interrupt (shared with PD4, vector 08H) · 16-bit programmable timer/event counter and overflow interrupts (shared with PA7, vector 0CH) · Crystal oscillator (6MHz or 12MHz) · Watchdog Timer · PS2 and USB modes supported · USB 2.0 low speed function · 4 endpoints supported (endpoint 0 included) · 6144´16 program memory ROM · 224´8 data memory RAM · One internal USB interrupt (vector 04H) · All I/O ports support wake-up options · HALT function and wake-up feature reduce power consumption · 8-level subroutine nesting · Up to 0.33ms instruction cycle with 12MHz system clock at VDD=5V · Bit manipulation instruction · 16-bit table read instruction · 63 powerful instructions · All instructions in one or two machine cycles · Optional 3-battery mode 2.4V LVR/2.6V LVD (±0.1V) by option, Low battery detector with internal bit · Optional 2-battery mode 2.2V LVR/2.4V LVD (±0.1V) by option, Low battery detector with internal bit · Operating voltage from 4.0V to 5.5V (For Connect USB/PS2 Mode) · Operating voltage from 2.2V to 3.3V (For Pure Cal. Mode) · 32-pin QFN, 48-pin SSOP/LQFP packages |
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Similar Description - HT82K94A |
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