參數(shù)資料
型號: HMS81C2020AQ
廠商: Electronic Theatre Controls, Inc.
英文描述: CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver
中文描述: CMOS單芯片8位微控制器與A / D轉換器
文件頁數(shù): 93/107頁
文件大小: 1482K
代理商: HMS81C2020AQ
HMS81C2012A/2020A
SEP. 2004 Ver 2.00
89
Figure 21-4 Timing Diagram in READ Mode
Parameter
Symbol
MIN
TYP
MAX
Unit
Programming Supply Current
I
VPP
-
-
50
mA
Supply Current in EPROM Mode
I
VDDP
-
-
20
mA
VPP Level during Programming
V
IHP
11.5
12.0
12.5
V
VDD Level in Program Mode
V
DD1H
5
6
6.5
V
VDD Level in Read Mode
V
DD2H
-
2.7
-
V
CTL3~0 High Level in EPROM Mode
V
IHC
0.8V
DD
-
-
V
CTL3~0 Low Level in EPROM Mode
V
ILC
-
-
0.2V
DD
V
A_D7~A_D0 High Level in EPROM Mode
V
IHAD
0.9V
DD
-
-
V
A_D7~A_D0 Low Level in EPROM Mode
V
ILAD
-
-
0.1V
DD
V
VDD Saturation Time
T
VDDS
1
-
-
mS
VPP Setup Time
T
VPPR
-
-
1
mS
VPP Saturation Time
T
VPPS
1
-
-
mS
EPROM Enable Setup Time after Data Input
T
SET1
200
nS
EPROM Enable Hold Time after T
SET1
T
HLD1
500
nS
Table 21-2 AC/DC Requirements for Program/Read Mode
VPP
CTL0/1
High 8bit
Address
Input
HA
LA
DATA
LA
DATA
DATA
EPROM
Enable
CTL2
CTL3
A_D7~
A_D0
VDD
V
DD2H
0V
0V
0V
Low 8bit
Address
Input
DATA
Output
T
VDDS
T
VPPR
T
VPPS
V
DD2H
V
DD2H
V
IHP
T
HLD1
T
HLD2
T
SET1
T
DLY1
T
DLY2
T
CD1
T
CD2
T
CD2
T
CD1
HA
LA
Low 8bit
Address
Input
High 8bit
Address
Input
Low 8bit
Address
Input
DATA
Output
DATA
Output
After input a high address,
output data following low address input
Anothe high address step
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