Epson LQ 1050 Technical Manual - Page 206
FP.ROM, Sianal, tatus
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REV.-A T. a-h--ln- .A.-.1-.7- . H. .M. .77. 2--5f-i -F-P.R. . O. M. . . -S.i=an..a-.l !-%t.-a-t-us- ;.,, , Mode CE m A9 VPP Vcc outputs Read L L x Vcc Vcc D out Output Disable L H x Vcc Vcc High Z Standby H x x Vcc Vcc High Z High Performance Program L H x Vpp Vcc D in Program Verify H L x Vpp Vpp D out Optional Verify L L x Vpp Vpp D out Program Inhibit Identifier H H x Vpp Vcc High Z L L vH Vcc V(X Code NOTES: 1. X . . . Don't care 2. VH = 12.OV + 0.5V 3 . VCC = - 0 . 6 - +7V 4. Vpp = -0.6 - + 14V 4 .- A-20
REV.-A
Tahln
A-1
7
HM7725fi
FP.ROM
Sianal
!%tatus
.
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.
.
.
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.
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-.
=..-.
—.--—-
Mode
CE
m
A9
VPP
Vcc
outputs
Read
L
L
x
Vcc
Vcc
D out
Output Disable
L
H
x
Vcc
Vcc
High Z
Standby
H
x
x
Vcc
Vcc
High Z
High Performance Program
L
H
x
Vpp
Vcc
D in
Program Verify
H
L
x
Vpp
Vpp
D out
Optional Verify
L
L
x
Vpp
Vpp
D out
Program Inhibit
H
H
x
Vpp
Vcc
High Z
Identifier
L
L
vH
Vcc
V(X
Code
NOTES: 1. X . . . Don’t care
2. VH = 12.OV
+
0.5V
3.
VCC
=
–0.6 -
+7V
4.
Vpp
= –0.6 - + 14V
,,
,
;.
4
.-
A-20