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參數資料
型號: W83787IF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
英文描述: WINBOND I/O WITH SERIAL-INFRARED SUPPORT
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: PLASTIC, QFP-100
文件頁數: 91/123頁
文件大小: 1751K
代理商: W83787IF
W83787IF
Publication ReleaseDate:Sep 1995
- 91 -
Revision A1
8.3.6 EPP Data or Address Read Cycle Timing Parameters, continued
PARAMETER
SYM.
t22
t23
t24
MIN.
0
0
0
MAX.
20
30
195
UNIT
nS
nS
nS
PBDIR Set to Command
PD Hi-Z to Command Asserted
WAIT Asserted to Command Asserted
WAIT Deasserted to Command Deasserted
Time out
t25
60
180
nS
t26
t27
10
0
12
nS
nS
PD Valid to WAIT Deasserted
PD Hi-Z to WAIT Deasserted
t28
0
μ
S
8.3.7 EPP Data or Address Write Cycle Timing Parameters
PARAMETER
SYM.
t1
MIN.
40
MAX.
UNIT
nS
Ax Valid to IOW Asserted
SD Valid to IOW Asserted
t2
10
nS
IOW Deasserted to Ax Invalid
t3
10
nS
WAIT Deasserted to IOCHRDY Deasserted
t4
0
nS
Command Asserted to WAIT Deasserted
t5
10
nS
IOW Deasserted to IOW or IOR Asserted
t6
40
nS
IOCHRDY Deasserted to IOW Deasserted
t7
0
24
nS
WAIT Asserted to Command Asserted
t8
60
160
nS
IOW Asserted to WAIT Asserted
t9
0
70
nS
PBDIR Low to WRITE Asserted
t10
0
nS
WAIT Asserted to WRITE Asserted
t11
60
185
nS
WAIT Asserted to WRITE Change
t12
60
185
nS
IOW Asserted to PD Valid
t13
0
50
nS
WAIT Asserted to PD Invalid
PD Invalid to Command Asserted
t14
0
nS
t15
t16
10
5
nS
nS
IOW to Command Asserted
35
WAIT Asserted to Command Asserted
t17
60
210
nS
WAIT Deasseted to Command Deasseted
Command Asserted to WAIT Deasserted
t18
t19
60
0
190
10
nS
μ
S
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W83787F WINBOND I/O WITH SERIAL-INFRARED SUPPORT
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