Akai PDP4225M, Service Manual, Page: 55 / 77

HDLTEK F T ^
HT48R06A-1/HT48C06
8-Bit Cost-Effective I/O Type MCU
Features
• O perating voltage:
f SYS=4MHz: 2.2V~5.5V
f SYS=8MHz: 3.3V~5.5V
• 13 bidirectional I/O lines
• An interrupt input shared with an I/O line
• 8-bit program m able tim er/event co u n te r with over­
flo w interrupt and 8-stage prescaler
• O n-chip crystal and RC oscillator
• W atchdog Tim er
• 1024x14 program m em ory ROM
• 64x8 data m em ory RAM
• B uzzer driving pair and P F D supported
General Description
T he H T 4 8 R 0 6 A -1 /H T 4 8 C 0 6 are 8 -b it high p e rfo r­
m ance, RISC architecture m icrocontroller devices spe­
cifically designed fo r cost-effective m ultiple I/O control
product applications. The m ask version HT48C06 is
fully pin and functionally com patible with the OTP ver­
sion HT48R06A-1 device.
Block Diagram
ÏN T /P C 0
VSS
• HALT function and w ake-up feature reduce power
consum ption
• Up to 0.5p.s instruction cycle with 8M H z system clock
at
V
d d
= 5 V
• A llin stru ctio n sin on e o rtw o m a ch in e cycle s
• 14-bit table read instruction
• Tw o-level subroutine nesting
• Bit m anipulation instruction
• 63 powerful instructions
• Low voltage reset function
• 16-pin SS O P package
18-pin DIP/SOP package
The advantages o f low pow er consum ption, I/O flexibil­
ity, tim e r fu n c tio n s , o s c illa to r o p tio n s , H ALT and
w ake-up functions, w atchdog timer, buzzer driver, as
well as low cost, enhance the versatility o f these devices
to suit a w ide range of application possibilities such as
industrial control, consum er products, subsystem con­
trollers, etc.
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