Shugart SA455 - Page 6

39239·27
~
6 rna (MIN)'* * ..- -1..,
5_00 ns (MAX) L..._ l......-
_ I~ J-:= 1 p's (MAX)
'- ~ ms (MAXlt -I ~
*18 ma (MAX) for SA465.
**3 rna (MIN) for SA465.
t1 p'sac (M AX) for SA465.
DRIVE SELECT
TRACK 00 DETECT'
POWER
ON "---,
___ ~""""'-:1-10··0-m-. S-(-M-A-X)--------
'-
. r--7-i--:-s-oo-m-S--(M-A-X-). ------
J..~ 2 P.s (MAX)
VALID READ DATA ------,-:.-, ,.------
'~,--- / "
I --l 21 rn.s (MA.X)* ..I.. t.--
j'4-~ 1 P.s (MIN) .. I I
DIRECTION ._- .... 'c:::~: -.....,;,----X . X"~--
STEP ',----- .... 1---
FIGURE 1·3. ST'EP TO READ
DRIVE SELECT
VALID WRITE PROTECT
VALID READ DATA
WRITE GATE
, WRITE DATA
DIRECTION SELECT
STEP
SIDE SELECT
-,
·---1I:I"':-:50::0~nS:-:(::MA7:X:-) --------------
-~
~. l.-- 2 P.s (MAX) _I I ~
__ I .. Y 200~S(M'N);·1""---r...;l\~- __-
___ ,__ 500 ns (MAX) t=! 1.1 rns (MAX)
I
.. 1'. --..,' ~1.5rns(MIN).
___ ,__ ~ .1 8 P.s (MAX) J...- 8 p's (MAX)
500
ns (MAX)---I r-- I" I
___ ,_~ ... , ... _ _ ---...j ra- 1/LS (MAX)
" ----~
*18 ms (MAX) for SA465.
• ·SIOE SELECT to VALlD,READ DATA.
39239·20
FIGURE 1-4. WF~ITE TO STEP'
1·6