參數(shù)資料
型號: μPD78P0208
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 55/72頁
文件大小: 424K
代理商: ΜPD78P0208
55
m
PD78P0208
PROM Write Mode Timing (Byte Program Mode)
Notes 1.
If you want to read within the t
ACC
range, make the OE input delay time from the fall of CE a maximum of
t
ACC
– t
OE
.
2.
t
DF
is the time from when either OE or CE first reaches V
IH
.
Cautions 1. V
DD
should be applied before V
PP
, and cut after V
PP
.
2. V
PP
should not exceed +13.5 V including overshoot.
3. Disconnection during application of +12.5V to V
PP
may have an adverse effect on reliability.
PROM Read Mode Timing
A0 - A16
D0 - D7
V
PP
V
PP
V
DD
V
DD
V
DD
+ 1.5
V
DD
CE
PGM
V
IH
V
IH
V
IH
V
IL
V
IL
V
IL
CE
Program
Program verify
t
AS
t
DS
t
DH
t
VDS
t
CES
t
PW
t
OES
t
VPS
Hi-Z
Hi-Z
Hi-Z
t
OEH
t
DF
t
AH
t
OE
Data output
Data input
A0 - A16
D0 - D7
CE
V
IH
V
IL
V
IH
V
IL
CE
t
CE
t
OE
t
OH
t
DF
t
ACC
Hi-Z
Hi-Z
Effective address
Note 1
Note 2
Note 1
Data output
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