參數(shù)資料
型號(hào): UPD780024AY
廠(chǎng)商: NEC Corp.
元件分類(lèi): 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁(yè)數(shù): 47/90頁(yè)
文件大?。?/td> 660K
代理商: UPD780024AY
μ
PD78F0034B, 78F0034BY, 78F0034B(A), 78F0034BY(A)
47
Data Sheet U16369EJ1V0DS
Notes 2.
Make sure that the following conditions of the V
PP
voltage application timing are satisfied when the flash
memory is written.
When supply voltage rises
V
PP
must exceed V
DD
10
μ
s or more after V
DD
has reached the lower-limit value (1.8 V) of the
operating voltage range (see a in the figure below).
When supply voltage drops
V
DD
must be lowered 10
μ
s or more after V
PP
falls below the lower-limit value (1.8 V) of the
operating voltage range of V
DD
(see b in the figure below).
Capacitance (T
A
= 25
°
C, V
DD
= V
SS
= 0 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Input
capacitance
C
IN
f = 1 MHz
Unmeasured pins returned to 0 V.
15
pF
I/O
capacitance
C
IO
f = 1 MHz
Unmeasured pins
returned to 0 V.
P00 to P03, P20 to P25,
P34 to P36, P40 to P47,
P50 to P57, P64 to P67,
P70 to P75,
15
pF
P30 to P33
20
pF
Remark
Unless otherwise specified, the characteristics of alternate-function pins are the same as those of port
pins.
1.8 V
V
DD
0 V
0 V
V
PP
1.8 V
a
b
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