參數(shù)資料
型號(hào): 82C52
廠商: Intersil Corporation
英文描述: CMOS Serial Controller Interface
中文描述: CMOS串行控制器接口
文件頁(yè)數(shù): 12/19頁(yè)
文件大?。?/td> 255K
代理商: 82C52
5-12
Timing Waveform
AC Test Circuit
AC Testing Input, Output Waveforms
FIGURE 12. PROPAGATION DELAY
FIGURE 13. ENABLE/DISABLE DELAY
AC TESTING: All input signals (except IX and RST) must switch between V
IL
-0.4V and V
IH
+0.4V. Input rise and fall times are driven at 1ns/V.
INPUT
V
IH
+ 0.4V
V
IL
- 0.4V
1.5V
1.5V
V
OH
V
OL
OUTPUT
90%
10%
OUTPUT
FIGURE 14. BUS OPERATION
CS0, A0, A1
SELECT VALID
NEXT BUS CYCLE
WR
RD
D0-D7
D0-D7
(5)
TRLDV
(6)
TRHDZ
(1)
TSVCTL
(3)
TCTLCTH
(4)
TCTHCTL
(1)
TSVCTL
(3)
TCTLCTH
(2)
TCTHSX
(8)
TWHDX
(7)
TDVWH
VALID
WRITE
OPERATION
READ
OPERATION
TEST POINT
R1
V1
CL
OUTPUT FROM
DEVICE UNDER
TEST
R2
TEST CONDITION
V1
R1
R2
CL
1
Propagation Delay
1.7V
520
100pF
2
Disable Delay
V
CC
5K
5K
50pF
82C52
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