參數(shù)資料
型號(hào): μPD78P054
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁(yè)數(shù): 63/86頁(yè)
文件大?。?/td> 502K
代理商: ΜPD78P054
63
μ
PD78P054, 78P058
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
.
PROM Write Mode Timing (byte program mode)
Cautions 1. V
DD
should be applied before V
PP
and removed after V
PP
.
2. V
PP
must not exceed +13.5 V including overshoot.
3. Reliability may be adversely affected if removal/reinsertion is performed while +12.5 V is
being applied to V
PP
.
PROM Read Mode Timing
A0 to A16
D0 to 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
PageData Input
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
A0 to A16
D0 to D7
CE
V
IH
V
IL
V
IH
V
IL
OE
t
CE
t
OH
t
DF
t
ACC
Hi-Z
Hi-Z
Effective Address
Note 1
Note 2
Data Output
t
OE
Note 1
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