參數(shù)資料
型號: UPD31172F1-48-FN
元件分類: 外設(shè)及接口
英文描述: MULTIFUNCTION PERIPHERAL, PBGA208
封裝: 15 X 15 MM, PLASTIC, FBGA-208
文件頁數(shù): 24/44頁
文件大?。?/td> 279K
代理商: UPD31172F1-48-FN
Data Sheet U14388EJ2V0DS00
30
PD31172
(10) IEEE1284-compliant parallel interface parameters
(a)
Parallel port control signal output
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
Parallel interface internal clock frequency
tCLK1284
24
MHz
CD (7:0) output delay time (writing to DATA register)
t1
30
ns
INIT#, STROBE#, AUTOFEED#, SELECTIN# setup time
t2
4 T
ns
DIR1284 setup time
t3
5 T
ns
Remark T: Parallel interface internal clock cycle (41.6 ns (MIN.))
IOW# (input)
CD (7:0)
(I/O)
DIR1284
(output)
INIT#, STROBE#,
AUTOFEED#,
SELECTIN#
(I/O)
t1
t2
t3
(b)
Compatible mode using FIFO
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
CD (7:0) setup time
t4
24 T
ns
STROBE# pulse width
Note 1
t5
24 T
ns
BUSY response time
t6
12 T
ns
CD (7:0) hold time
Note 2 (from STROBE#
↑)
t7
24 T
ns
CD (7:0) hold time
Note 2 (from BUSY
↓)
t8
0ns
STROBE# setup time
Note 3
t9
24 T
ns
Notes 1. When there is no reaction from BUSY at a low level, STROBE# continues to output a low level.
2. Data is held while BUSY is high level.
3. When the FIFO buffer is empty, this signal is held at a high level.
Remark T: Parallel interface internal clock cycle (41.6 ns (MIN.))
STROBE#
(output)
BUSY
(input)
t4
t5
Valid data
t7
t6
t8
t9
CD (7:0)
(output)
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