DS2250T Maxim Integrated Products, Inc., DS2250T Datasheet - Page 14

• Manufacturer Part Number: DS2250T
• Description: Soft Microcontroller Module
• Manufacturer: Maxim Integrated Products, Inc.

AC CHARACTERISTICS—PARALLEL PROGRAM LOAD TIMING
(V
*
Second set of numbers refers to expanded memory programming up to 32kbytes.
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
#
CC
= 5V ±5%, T
PARAMETER
Oscillator Frequency
Address Setup to
Address Hold after
Data Setup to
Data Hold after
P2.7, 2.6, 2.5 Setup to V
V
V
Data Output from Address Valid
Data Output from P2.7 Low
Data Float after P2.7 High
Delay to Reset/
Reset/
V
V
Verify Active Time
PROG
PP
PP
PP
PP
Setup to
Hold after
High
Inactive (Between Program Cycles)
PSEN
Width Low
Active (or Verify Inactive) to
PROG
PROG
PROG
A
PSEN
PROG
= 0°C to +70°C.)
PROG
PROG
Low
Low
Active after Power On
Low
High
PP
Low
High
14 of 18
SYMBOL
t
t
t
t
t
t
t
t
1/t
t
t
t
t
VPHPRL
PRHVPL
t
P27HVP
DVP27L
P27HDZ
AVPRL
PRHAV
DVPRL
PRHDV
RAVPH
PORPV
t
VPPPC
AVDV
t
PRW
VFT
CLK
21504
2400*
MIN
2400
1200
1200
1.0
48
0
0
0
0
0
0
0
0
1800*
1800*
1800*
MAX
12.0
48
48
48
UNITS
MHz
t
t
t
t
t
t
t
t
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK