HMCS46C(HD44840),----
HMCS46CL(HD44848)
The HMCS46C
is
the
CMOS
4-bit single chip microcomputer
which contains
ROM,
RAM,
I/O and Timer/Counter
on
single
chip. The
HMCS46C
is
designed
to
perform efficient controller
function
as
well
as
arithmetic function for both binary and
BCD
data. The
CMOS
technology
of
the
HMCS46C
provides the
flexibility
of
microcomputers for battery powered and battery
back·up applications.
• FEATURES
•
4·bit
Architecture
• 4,096 Words
of
Program ROM and Pattern ROM (10 bits/
Word)
• 256 Digits
of
Data RAM (4 bits/Digit)
• 32
I/O
Lines and 2 External
Interrupt
Lines
• Timer/Counter
• Instruction Cycle Time;
H MCS46C:
5",s
HMCS46CL: 20ps
• All Instructions
except One Instruction; Single Word and
Single Cycle
• BCD
Arithmetic
Instructions
•
Pattern Generation Instruction
- Table
Look
Up Capability -
• Powerful
Interrupt
Function
3
Interrupt
Sources
~
2 External
Interrupt
Lines
L Timer/Counter
Multiple
Interrupt
Capability
•
Bit
Manipulation Instructions
for
Both RAM and
I/O
• Option
of
I/O
Configuration Selectable on
Each
Pin; With
Puil up MOS
or
CMOS or Open Drain
• Built-in Oscillator
• Built-in Power-on
Reset
Circuit (HMCS46C
only)
•
Low
Operating Power Dissipation; 3.3mW
typo
• Stand-by Mode (Half Mode); 66",W max.
•
CMOS
Technology
• Single
Power Supply;
HMCS46C: 5V
±
10%
HMCS46CL: 2.5V
to
5.5V
82
HMCS46C, HMCS46CL
(DP-42)
HMCS46C, HMCS46CL
(DP-42S)
• PIN
ARRANGEMENT
o
HMCS46C
HMCS46CL
D2
1
DI
Do
R33
Rn
7
RlI
R30
.
Rl3
4
Rl2
3
R21
R
lO
1
INTI
INTo
Rll
Ru
7
R11
R
to
R03
4
R02
3
Rot
~
______
--Jr-
Roo
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