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  Holtek Semiconductor Electronic Components Datasheet  

HT48C05A-1 Datasheet

Cost-Effective I/O Type 8-Bit MCU

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HT48R05A-1/HT48C05/HT48R06A-1/HT48C06
Cost-Effective I/O Type 8-Bit MCU
Features
· Operating voltage:
fSYS=4MHz: 2.2V~5.5V
fSYS=8MHz: 3.3V~5.5V
· 13 bidirectional I/O lines
· An interrupt input shared with an I/O line
· 8-bit programmable timer/event counter with over-
flow interrupt and 8-stage prescaler
· On-chip crystal and RC oscillator
· Watchdog Timer
· Program memory ROM:
512´14 for HT48R05A-1/HT48C05
1024´14 for HT48R06A-1/HT48C06
· Data memory RAM
32´8 for HT48R05A-1/HT48C05
64´8 for HT48R06A-1/HT48C06
· Buzzer driving pair and PFD supported
· HALT function and wake-up feature reduce power
consumption
· Up to 0.5ms instruction cycle with 8MHz system clock
at VDD=5V
· Allinstructionsinoneortwomachinecycles
· 14-bit table read instruction
· Two-level subroutine nesting
· Bit manipulation instruction
· Powerful instructions:
62 for HT48R05A-1/HT48C05
63 for HT48R06A-1/HT48C06
· Low voltage reset function
· 16-pin SSOP package
18-pin DIP/SOP package
General Description
The HT48R05A-1/HT48C05 and HT48R06A-1/
HT48C06 are 8-bit high performance, RISC architec-
ture microcontroller devices specifically designed for
cost-effective multiple I/O control product applications.
The mask version HT48C05 and HT48C06 are fully pin
and functionally compatible with the OTP version
HT48R05A-1 and HT48R06A-1 devices.
Block Diagram
IN T /P C 0
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, HALT and
wake-up functions, watchdog timer, buzzer driver, as
well as low cost, enhance the versatility of these devices
to suit a wide range of application possibilities such as
industrial control, consumer products, subsystem con-
trollers, etc.
www.DataSheet.net/
P ro g ra m
ROM
In s tr u c tio n
R e g is te r
P ro g ra m
C o u n te r
STAC K0
STAC K1
In te rru p t
C ir c u it
IN T C
PC0
MP M
U
X
D ATA
M e m o ry
In s tr u c tio n
D ecoder
T im in g
G e n e ra to r
O SC2
O SC1
RES
VDD
VSS
M UX
A LU
S h ifte r
STATU S
ACC
TM R C
TM R
M
U
P r e s c a le r
fS Y S
X T M R /P C 1
PC1
W D TS
M
W D T P r e s c a le r W D T U
X
fS Y S /4
PC C PO RT C
PC
B Z /B Z
PBC PO RT B
PB
RC O SC
P C 0~P C 1
P B 0~P B 2
PAC PO RT A
PA
P A 0~P A 7
Rev. 1.10
1 June 9, 2004
Datasheet pdf - http://www.DataSheet4U.co.kr/


  Holtek Semiconductor Electronic Components Datasheet  

HT48C05A-1 Datasheet

Cost-Effective I/O Type 8-Bit MCU

No Preview Available !

HT48R05A-1/HT48C05/HT48R06A-1/HT48C06
Pin Assignment
PA3
PA2
PA1
PA0
P B 0 /B Z
VSS
P C 0 /IN T
P C 1 /T M R
1
2
3
4
5
6
7
8
16 P A 4
15 P A 5
14 P A 6
13 P A 7
12 O S C 2
11 O S C 1
10 V D D
9 RES
H T 4 8 R 0 5 A -1 /H T 4 8 C 0 5
H T 4 8 R 0 6 A -1 /H T 4 8 C 0 6
1 6 S S O P -A
Pad Assignment
PA3
PA2
PA1
PA0
PB2
P B 1 /B Z
P B 0 /B Z
VSS
P C 0 /IN T
1
2
3
4
5
6
7
8
9
18 P A 4
17 P A 5
16 P A 6
15 P A 7
14 O S C 2
13 O S C 1
12 V D D
11 R E S
1 0 P C 1 /T M R
H T 4 8 R 0 5 A -1 /H T 4 8 C 0 5
H T 4 8 R 0 6 A -1 /H T 4 8 C 0 6
1 8 D IP -A /S O P -A
18 17 16 15 14 13
PA0
PB2
P B 1 /B Z
1
2
3
456
(0 ,0 )
7 89
www.DataSheet.net/
12 P A 7
11 O S C 2
10
* The IC substrate should be connected to VSS in the PCB layout artwork.
Pad Description
Pad Name I/O Options
Description
PA0~PA7
Bidirectional 8-bit input/output port. Each bit can be configured as wake-up
I/O
Pull-high* input by options. Software instructions determine the CMOS output or
Wake-up Schmitt trigger input with a pull-high resistor (determined by pull-high op-
tions).
PB0/BZ
PB1/BZ
PB2
Bidirectional 3-bit input/output port. Software instructions determine the
CMOS output or Schmitt trigger input with a pull-high resistor (determined by
I/O
Pull-high* pull-high options).
I/O or BZ/BZ The PB0 and PB1 are pin-shared with the BZ and BZ, respectively. Once the
PB0 and PB1 are selected as buzzer driving outputs, the output signals come
from an internal PFD generator (shared with a timer/event counter).
VSS
¾ ¾ Negative power supply, ground
PC0/INT
PC1/TMR
Bidirectional I/O lines. Software instructions determine the CMOS output or
Schmitt trigger input with a pull-high resistor (determined by pull-high op-
I/O Pull-high* tions). The external interrupt and timer input are pin-shared with the PC0 and
PC1, respectively. The external interrupt input is activated on a high to low
transition.
Rev. 1.10
2 June 9, 2004
Datasheet pdf - http://www.DataSheet4U.co.kr/


Part Number HT48C05A-1
Description Cost-Effective I/O Type 8-Bit MCU
Maker Holtek Semiconductor
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