參數(shù)資料
型號： HD4074654S
廠商： Hitachi,Ltd.
英文描述： 4-Bit Single-Chip Microcomputer
中文描述： 4位單片機
文件頁數(shù)： 101/109頁
文件大小： 430K
代理商： HD4074654S
HD404654 Series
101
Item
Symbol
Pin(s)
Min
Typ
Max
Unit
Test Condition
Notes
External
clock fall
time
t
CPf
OSC
1
—
—
150
ns
f
OSC
= 400 kHz
6
—
—
75
ns
f
OSC
= 800 kHz
f
OSC
= 2 MHz
f
OSC
= 3.58 MHz
f
OSC
= 4 MHz
6
—
—
35
ns
6
—
—
25
ns
6
—
—
20
ns
6
INT
,
INT
,
EVND high
width
INT
,
INT
,
EVND low
width
RESET
low
width
STOPC
low
width
RESET
rise
time
STOPC
rise
time
t
IH
INT
,
INT
1
,
EVND
2
—
—
t
cyc
7
t
IL
INT
,
INT
1
,
EVND
2
—
—
t
cyc
7
t
RSTL
RESET
2
—
—
t
cyc
8
t
STPL
STOPC
1
—
—
t
RC
9
t
RSTr
RESET
—
—
20
ms
8
t
STPr
STOPC
—
—
20
ms
9
Input
capacitance
C
in
All pins except
D
13
, D
4
–D
7
D
4
–D
7
D
13
—
—
15
pF
f = 1 MHz, V
in
= 0 V
—
—
30
pF
—
—
15
pF
—
—
180
pF
10
Analog
comparator
stabilization
time
t
CSTB
COMP
0
,
COMP
1
—
—
2
t
cyc
V
CC
= 2.7 V to 6.0 V
11, 12
—
—
20
t
cyc
V
CC
= 1.8 V to 2.7 V
Notes: 1. Bits 0 and 1 (SSR10, SSR11) of system clock select register 1 (SSR1: $029) and bit 2 (SSR22)
of system clock select register 2 (SSR2: $02A) must be set according to the system clock
frequency.
2. SEL = 1
3. SEL = 0
4. The oscillation stabilization time is the period required for the oscillator to stabilize after V
reaches 2.7 V (1.8 V for HD404654 and HD404652) at power-on, after
RESET
input goes low
when stop mode is cancelled, or after
STOPC
input goes low when stop mode is cancelled. At
power-on or when stop mode is cancelled,
RESET
or
STOPC
must be input for at least t
to
ensure the oscillation stabilization time. If using a ceramic oscillator, contact its manufacturer to
determine what stabilization time is required, since it will depend on the circuit constants and
stray capacitance.
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