FDC37N958FRTQFP Ver la hoja de datos (PDF) - SMSC -> Microchip
Número de pieza
componentes Descripción
Lista de partido
FDC37N958FRTQFP Datasheet PDF : 316 Pages
| |||
nAUTOFD
PDATA<7:0>
nSTROBE
BUSY
t3
t4
t2
t1
t7
t8
t6
t5
t6
FIGURE 44 - ECP PARALLEL PORT FORWARD TIMING
NAME
t1
t2
t3
t4
t5
t6
t7
t8
Table 103 - ECP Parallel Port Forward Timing Parameters
DESCRIPTION
MIN TYP MAX
nAUTOFD Valid to nSTROBE Asserted
0
60
PDATA Valid to nSTROBE Asserted
0
60
BUSY Deasserted to nAUTOFD Changed
(Notes 1,2)
80
180
BUSY Deasserted to PDATA Changed (Notes 1,2)
80
180
nSTROBE Deasserted to Busy Asserted
0
nSTROBE Deasserted to Busy Deasserted
0
BUSY Deasserted to nSTROBE Asserted (Notes 80
200
1,2)
BUSY Asserted to nSTROBE Deasserted (Note 2)
80
180
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
Note 1: Maximum value only applies if there is data in the FIFO waiting to be written out.
Note 2: BUSY is not considered asserted or deasserted until it is stable for a minimum of
75 to 130 ns.
SMSC DS – FDC37N958FR
Page 295
Rev. 09/01/99
Share Link: 