參數(shù)資料
型號: 7641
英文描述: 7641 Group Datasheet Datasheet 2145K/MAR.26.02
中文描述: 7641組數(shù)據(jù)表數(shù)據(jù)表2145K/MAR.26.02
文件頁數(shù): 96/137頁
文件大?。?/td> 2145K
代理商: 7641
95
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7641 Group
Fig. 79 Circuit for measuring output switching characteristics (1)
Notes 1:
Test conditions: I
OHL
=
±
5mA, C
L
= 50 pF
2:
t
wL
(RD) = ((n + 0.5) tc(PHI)) – 5 ns (n = wait number)
t
wL
(WR) = ((n + 0.5) tc(PHI)) – 5 ns (n = wait number)
For example, two software waits, PHI = 12 MHz operating
t
wL
(RD) = 2.5 tc(PHI) – 5 ns = 203.33 ns
Measurement output pin
100
pF
CMOS output
N-channel open-drain output (
Note
)
1
k
1
0
0
p
F
Measurement output pin
Note
: This diagram applies when bit 7 of the serial I/O control
register 1 is
1
.
Fig. 80 Circuit for measuring output switching characteristics (2)
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