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108048/8748/8035L
WAVEFORMS FOR PROGRAMMING
COMBINATION
PROGRAMIVERIFY
MODE
(EPROM'S
ONLY)
5V
_--J/
23V
EA
1----------
PROGRAM
----------t---
VERIFY--'~I.'----
PROGRAM
-----
TO
DBo-
DB
7
==>-
--
LAST
ADDRESS
DATA
TO
BE
PROGRAMMED
VAL
10
,.----'"'""
__
-{
N.
EXT ADDR L
VALID
NEXT
ADDRESS
voo+:
tTI--U:
....
~-::-T----------------------------------------------
+23------------
PROG
+5
_______
_ _ _ _ _ _ _ _
,.-___________
_
__
,'-
______________
_
+0
___
..f_
VERIFY
MODE
(ROM/EPROM)
TO,RESET
\\,.
______________
__1
1
\\.--
__
--JI
\\.----
DBo-
DB
7
J--
- -
-<\,.
____
A_~_~_~E_TS_S
__
__'X\,._~_~_~_TV_~_~T_I~..J)_
- -
--
- - - -
__________
__'~\,.
__________
A_DD_R_E_S_S_(8_-9_I_V_A_LI_D
________
__I~\,.
____________
NE_X_T_A_D_D_R_E_SS_V_A_L_ID
______________
_
NOTES:
1.
PROG MUST
FLOAT
IF
EA
IS LOW (Le.,
*23VI,
OR
IF
TO
=
5V
FOR
THE
8748. FOR
THE
8048
PROG
MUST
ALWAYS
FLOAT.
2.
X1
AND
X2
DRIVEN
BY
3
MHz
CLOCK
Will
GIVE
5~sec
tCY. THIS
IS
ACCEPTABLE FOR
·8 PARTS AS
WELL
AS
STANDARD
PARTS.
The 8748 EPROM can be programmed by either of two
Intel products:
1.
PROMPT -48 Microcomputer Design Aid.
or
Note: See the ROM/PROM
section
for
8048 ROM ordering procedures.
To
minimize turnaround
time
on the first
25
pieces 8648 may be
specified
on the ROM order.
2.
Universal
PROM
Programmer (UPP series) peripheral
of
the Intellec® Development System
with
a UPP·848
Personality Card.
6-26
AFN-00880A-09