參數(shù)資料
型號(hào): UPD78P368A
廠商: NEC Corp.
英文描述: 16/8 BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 16 / 8位單片機(jī)
文件頁(yè)數(shù): 38/52頁(yè)
文件大?。?/td> 545K
代理商: UPD78P368A
38
m
PD78P368A
PROM Write Mode Timing (Byte Program Mode)
Cautions 1. V
DDP
must be applied before V
PP
, and must be cut after V
PP
.
2. V
PP
including overshoot must not exceed +13.5 V.
3. Plugging in or out the board with the V
PP
pin supplied with +12.5 V may adversely affect its
reliability.
PROM Read Mode Timing
Notes 1.
For reading within t
ACC
, the delay of the OE input from falling edge of CE must be within t
ACC
– t
OE
.
2.
t
DF
is the time measured from when either OE or CE reaches V
IH
, whichever is faster.
Program
Program verify
A0 - A16
V
PP
V
DDP
V
PP
V
DDP
+ 1.5
V
DDP
V
DDP
CE
PGM
V
IH
V
IL
V
IH
V
IL
t
PW
Hi-Z
Hi-Z
Hi-Z
D0 - D7
V
IH
V
IL
t
AS
t
DS
t
VPS
t
VDS
t
CES
t
DF
t
AH
t
DH
t
OES
t
OE
Data input
Data output
OE
A0 - A16
CE
OE
Hi-Z
Hi-Z
D0 - D7
Data output
t
CE
Valid address
t
ACC
Note 1
t
OH
t
OE
Note 1
t
DF
Note 2
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