Holtek HT48R05A-1 - Selection Table; Block Diagram

Selection Table
The series of Cost-Effective I/O microcontrollers include a comprehensive range of features,
some of which are standard and some of which are device dependent. Most features are common
to all devices, the main feature distinguishing them are Program Memory, Data Memory capacity
and I/O count. To assist users in their selection of the most appropriate device for their application,
the following table, which summarizes the main features of each device, is provided.
Part No. VDD
Program
Memory
Data
Memory
I/O Timer Int. PFD Stack
Package
Types
HT48R05A-1
HT48C05
2.2V~5.5V
0.5K´14 32´8
13
8-bit´1
2
Ö
2
16SSOP,
18DIP/SOP
HT48R06A-1
HT48C06
2.2V~5.5V
1K´14 64´8
13
8-bit´1
2
Ö
2
16SSOP,
18DIP/SOP
HT48R07A-1
HT48C07
2.2V~5.5V
1K´14 64´8
19
8-bit´1
2
Ö
2
24SKDIP/
SOP/SSOP
HT48R08A-1
HT48C08
2.2V~5.5V
2K´14 96´8
13
8-bit´1
2
Ö
2
16SSOP,
18DIP/SOP
HT48R09A-1
HT48C09
2.2V~5.5V
2K´14 96´8
19
8-bit´1
2
Ö
2
24SKDIP/
SOP/SSOP
Note
1. Part numbers including ²C² are mask version devices while ²R² are OTP devices.
2. There is a Low Voltage Reset within the range 2.7V~3.3V, if the LVR function is disabled,
the operating voltage can be reduced to 2.2V.
Block Diagram
The following block diagram illustrates the main functional blocks of the Cost-Effective I/O Type
microcontroller series of devices.
Note
This block diagram represents the OTP devices, for the mask device there is no Device Pro
-
gramming Circuitry.
Chapter 1 Hardware Structure
5
T i m i n g
G e n e r a t o r
S y s t e m R C /
X ' t a l O s c i l l a t o r
I n s t r u c t i o n
D e c o d e r
I n s t r u c t i o n
R e g i s t e r
W D T
O s c i l l a t o r
D a t a
M e m o r y
A d d r e s s D e c o d e r
M e m o r y
P o i n t e r
M U X
A C C
L o o k - u p
T a b l e
R e g i s t e r
C o n f i g .
R e g i s t e r
W a t c h d o g
T i m e r
R e s e t &
L V R
C o n f i g .
R e g i s t e r
T i m e r /
C o u n t e r
B u z z e r
D r i v e r
C o n f i g .
R e g i s t e r
I n t e r r u p t
C i r c u i t
C o n f i g .
R e g i s t e r
I / O
P o r t s
D e v i c e
P r o g r a m m i n g
C i r c u i t r y
C o n f i g u r a t i o n
O p t i o n
P r o g r a m
M e m o r y
A d d r e s s D e c o d e r
S t a c k
S t a c k P o i n t e r
P r o g r a m
C o u n t e r
L o o k - u p
T a b l e
P o i n t e r
T o P r o g r a m
M e m o r y
A L U
S h i f t e r
M
U
X