參數(shù)資料
型號(hào)： 4250
英文描述： Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23
中文描述： 4250組數(shù)據(jù)表數(shù)據(jù)表652K/NOV.30.97
文件頁(yè)數(shù)： 7/59頁(yè)
文件大小： 652K
代理商： 4250
6
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
PORT FUNCTION
Control
bits
1
4
4
2
Control
instructions
SD
RD
SZD
CLD
SCP
RCP
SNZCP
OKA
IAK
OSA
IAS
LGOP
OGA
IAG
OFA
IAF
Control
registers
PU0
K0
LO
PU0, K0
PU0, K0
V1
PU0, K0
Output structure
N-channel open-drain
N-channel open-drain
N-channel open-drain
N-channel open-drain
Input/
Output
I/O
(4)
I/O
(4)
I/O
(4)
I/O
(2)
Remark
Pull-up function
(programmable)
Logic operation function
(programmable)
Key-on wakeup functions
(programmable)
Pull-up functions
Key-on wakeup functions
(only pull-up function is
programmable)
Pull-up functions
(programmable)
Key-on wakeup functions
(programmable)
Pin
D
0
, D
1
D
2
/C
D
3
/K
S
0
–S
3
G
0
/INT
G
1
/T
OUT
G
2
, G
3
F
0
, F
1
Port
Port D
Port S
Port G
Port F
DEFINITION OF CLOCK AND CYCLE
System clock
This is the source clock input to the X
IN
pin. Connect pins X
IN
and X
OUT
directly. Then, pull up X
IN
pin through a resistor and
pull down X
OUT
pin through a capacitor.
Instruction clock
The instruction clock is a signal derived by dividing the system
clock by 4, and is the basic clock for controlling this product.
Machine cycle
One machine cycle is the time required to execute the minimum
instruction (one-cycle instruction). The machine cycle is
equivalent to the instruction clock cycle.
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