參數(shù)資料
型號: M34556M8H-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 93/147頁
文件大小: 1087K
代理商: M34556M8H-XXXFP
Rev.3.02
Dec 22, 2006
page 3 of 142
REJ03B0025-0302
4556 Group
Block diagram (4556 Group)
RAM
RO
M
Memory
I/O
por
t
Internal
peripheral
function
s
Timer
1(8
bits)
System
clock
generation
circuit
Timer
2(8
bits)
288
words
4
bits
4096,
8192
words
10
bits
4500
series
CPU
core
Register
B
(4
bits)
Register
A
(4
bits)
Register
D
(3
bits)
Register
E
(8
bits)
Stack
register
SK
(8
levels)
Interrupt
stack
register
SDP
(1
level)
ALU(4
bits)
Watchdog
timer
(16
bits)
Port
P0
4
Port
P1
4
Port
P2
4
Voltage
drop
detection
circuit
Timer
3(16
bits)
LCD
drive
control
circuit
(Max.23
segments
4
common)
X
IN
-X
OUT
Segment
outpu
t
23
Common
outpu
t
4
Port
D
6
Port
C
1
2
Note:
The
voltage
drop
detection
circuit
is
equipped
with
only
H
version
.
including
23
words
4
bits
LCD
display
RAM
On-chip
oscillator
(Quartz-crystal)
X
CIN
-X
COUT
(Ceramic/RC)
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