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  Holtek Semiconductor Electronic Components Datasheet  

HT48RA0-5 Datasheet

Remote Type 8-Bit OTP MCU

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HT48RA0-5 pdf
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HT48RA0-5
Remote Type 8-Bit OTP MCU
Features
· Operating voltage:
fSYS=4MHz at VDD=2.0V~3.6V (LVR enabled)
fSYS=4MHz at VDD=1.8V~3.6V (LVR disabled)
· Oscillator types:
External high frequency Crystal -- HXT
Internal high frequency RC -- HIRC
· 1K´14 program memory
· 32´8 data RAM
· One-level subroutine nesting
· 17 bidirectional I/O lines
· Fully integrated internal 4095kHz oscillator requires
no external components
· One programmable carrier output - using 9-bit timer
· Carrier output pin (REM)
· Build-in IR Driver (350mA@3.0V)
· Watchdog Timer
· Low voltage reset function
· Power-down and wake-up features reduce power
consumption
· 14-bit table read instructions
· Up to 1ms instruction cycle with 4MHz system clock
· 62 powerful instructions
· All instructions executed in 1 or 2 machine cycles
· Bit manipulation instructions
· 20-pin SSOP package
General Description
The HT48RA0-5 is 8-bit high performance, RISC archi-
tecture microcontroller device specifically designed for
multiple I/O control product applications.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, watchdog timer, HALT and wake-up
functions, as well as low cost, enhance the versatility of
this device to suit a wide range of application possibili-
ties such as industrial control, consumer products, and
particularly suitable for use in products such as infrared
remote controllers and various subsystem controllers.
Rev.1.00
1 March 23, 2010


  Holtek Semiconductor Electronic Components Datasheet  

HT48RA0-5 Datasheet

Remote Type 8-Bit OTP MCU

No Preview Available !

HT48RA0-5 pdf
Block Diagram
O TP
P ro g ra m
M e m o ry
D a ta
M e m o ry
S ta c k
I/O 9 - b it R E M /R E M D R V
P o r ts T im e r
O u tp u t
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HT48RA0-5
W a tc h d o g
T im e r
W a tc h d o g
T im e r O s c illa to r
8 - b it
R IS C
M CU
C o re
L o w V o lta g e
R eset
R eset
C ir c u it
E x te rn a l X T A L
C o n tr o lle r
In te rn a l R C
O s c illa to r
Pin Assignment
VSS
P C 0 /R E S
PB7
P B 6 /O S C 1
P B 5 /O S C 2
PB4
PB3
PB2
PB1
PB0
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
H T 4 8 R A 0 -5
2 0 S S O P -A
VDD
R E M /R E M D R V
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
Pin Description
Pin Name
I/O
Configuration
Option
Description
PA0~PA7
I/O
Bidirectional 8-bit input/output port with pull-high resistors. Software in-
¾ structions determine if the pin is an NMOS output or Schmitt Trigger input.
Each pin can have a wake-up function if configured as an input pin.
PB0~PB4
PB5/OSC2
PB6/OSC1
PB7
I/O
OSC
Bidirectional 8-bit input/output port with pull-high resistors. Software in-
structions determine if the pin is an NMOS output or Schmitt Trigger input.
Each pin can have a wake-up function if configured as an input pin. PB5
and PB6 are pin-shared with the external crystal pins named OSC2 and
OSC1 respectively determined by a configuration option.
PC0/RES
Bidirectional 1-bit input/output port without a pull-high resistor. Software in-
structions determine if the pin is an NMOS output or Schmitt Trigger input.
I/O
RES
This pin has the capability of wake-up when it is configured as an input pin.
PC0 is pin-shared with the external reset pin named RES determined by a
configuration option.
REM/REMDRV O
REMDRV
Carrier output dual function pin. REM is a CMOS carrier output pin with an
initial low level after a reset. REMDRV pin is a high sink current NMOS
open drain carrier output pin which will be in a floating condition after a re-
set. The selection of REM or REMDRV is determined by a configuration
option.
VDD
¾ ¾ Positive power supply
VSS
¾ ¾ Negative power supply, ground
Rev.1.00
2 March 23, 2010


Part Number HT48RA0-5
Description Remote Type 8-Bit OTP MCU
Manufacturer Holtek Semiconductor
Total Page 30 Pages
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HT48RA0-5 pdf
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