參數(shù)資料
型號： LC875064B
廠商： Sanyo Electric Co.,Ltd.
英文描述： 8-Bit Single Chip Microcontroller with 64K-Byte(65535 ×8 bits) EPROM and 2048-Byte(2048 ×8 bits) RAM On Chip(8位單片微控制器（帶片上64K（65535 ×8 bit）字節(jié)EPROM和2048(2048 ×8 bits)字節(jié)RAM）)
中文描述： 8位單片機微控制器64K的字節(jié)（65535 × 8位）存儲器和2048字節(jié)（2048 × 8位）片上的RAM（8位單片微控制器（帶片上64K的（65535 × 8位）字節(jié)存儲器和2048（2048 × 8位）字節(jié)的RAM））
文件頁數(shù)： 16/26頁
文件大?。?/td> 762K
代理商： LC875064B
LC875064B/56B/48B
16/26
5. Parallel Input/Output Characteristics at Ta=-20
°
C to +70
°
C, VSS1=VSS2=VSS3=0V
Note: Port A terminals used as RS, WR , RD and CS should be set to CMOS format.
Please refer to figures 8 and 9 for parallel output timing waveforms.
Ratings
typ.
1
Parameter
Symbol
Pins
Conditions
VDD[V]
2.5 - 6.0
min.
max.
unit
Write cycle,
Read cycle
Address set-up
time
tC(1)
tCYC
tsA(1)
WR (PA3), PB0-PB7
RD (PA4), PC0-PC7
RD (PA4), PC0-PC7
2.5 - 6.0
1/3tCYC
-30ns
tsA(2)
From address set-up
until control signal
changes
2.5 - 6.0
2/3tCYC
-30ns
1/6tCYC
5
thA(1)
RD (PA4), PC0-PC7
From change of RD
until address change
From change of WR
until address change
From change of RS,
CS
until change in
WR
from change of RS
until change in RD
2.5 - 6.0
tCYC
& ns
Address hold time
thA(2)
WR (PA3), PC0-PC7
2.5 - 6.0
ns
tsRS(1)
WR
(PA3), RS(PA5),
CS(PAX)
2.5 - 6.0
1/6tCYC
-15ns
tsRS(2)
RD (PA4), RS(PA5)
2.5 - 6.0
1/6tCYC
-15ns
1/3tCYC
-15ns
1/3tCYC
-15ns
RS set-up tie
tsRS(3)
RD (PA4), RS(PA5)
2.5 - 6.0
tsCS(1)
RD (PA4),
CS
(PAX)
From change in
CS
until change in RD
From change in CS
until change in
WR
2.5 - 6.0
CS
set-up time
tsCS(2)
WR (PA3), CS(PAX)
2.5 - 6.0
2/3tCYC
-15ns
tCYC
& ns
thRS(1)
WR
(PA3), RS(PA5)
From change in
WR
until change in RS
From change in RD
until change in RS,
CS
2.5 - 6.0
0
ns
thRS(2)
RD (PA4), RS(PA5),
CS(PAX)
2.5 - 6.0
1/6tCYC
tCYC
& ns
RS
hold time
thRS(3)
RD (PA4), RS(PA5),
CS(PAX)
2.5 - 6.0
0
ns
thCS(1)
RD (PA4), RS(PA5)
From change in RD
until change in
CS
2.5 - 6.0
1/6tCYC
tCYC
& ns
CS
hold time
thCS(2)
WR
(PA3), RS(PA5)
From change in
WR
until change in CS
2.5 - 6.0
0
ns
tWRH(1)
WR (PA3)
2.5 - 6.0
1/6tCYC
-5ns
2/3tCYC
-5ns
1/6tCYC
-5ns
1/3tCYC
-5ns
1/6
tCYC
2/3
tCYC
1/6
tCYC
1/3
tCYC
WR
’H’ pulse width
tWRH(2)
WR
(PA3)
2.5 - 6.0
tWRL(1)
WR
(PA3)
2.5 - 6.0
WR
’L’ pulse width
tWRL(2)
WR
(PA3)
2.5 - 6.0
tCYC
& ns
(Continued)
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