ds2251t Maxim Integrated Products, Inc., ds2251t Datasheet - Page 18

• Manufacturer Part Number: ds2251t
• Description: Ds2251t 128k Soft Microcontroller Module
• Manufacturer: Maxim Integrated Products, Inc.

RPC AC CHARACTERISTICS—DBB READ
(V
RPC AC CHARACTERISTICS—DBB WRITE
(V
AC CHARACTERISTICS—DMA
(V
AC CHARACTERISTICS—PROG
(V
61A
61B A
54
55
56
57
58
59
60
62
63
64
65
66
67
68
69
70
#
#
#
#
CC
CC
CC
CC
= 5V ±10%, T
= 5V ±10%, T
= 5V ±10%, T
= 5V ±10%, T
PARAMETER
PARAMETER
Data Setup to
Data Hold After
PARAMETER
PARAMETER
CS
CS
RD
CS
RD
RD
CS
CS
WR
DACK
RD
DACK
RD
PROG
PROG
0
, Hold After
, A
, A
, A
, A
, Hold After
Pulse Width
to Data Out Delay
to Data Float Delay
or
or
Pulse Width
0
0
0
0
Low to Active
High to Inactive
to
to Data Valid
WR
WR
Setup to
Hold After
to Data Out Delay
Setup to
WR
to
to DRQ Cleared
WR
or
DACK
WR
A
A
A
A
WR
RD
WR
WR
RD
= 0˚C to +70˚C.)
= 0˚C to +70˚C.)
= 0˚C to +70˚C.)
= 0˚C to +70˚C.)
RD
18 of 22
SYMBOL
SYMBOL
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RDZ
ACC
CAC
ACD
CRQ
WW
PRA
AW
WA
WA
DW
WD
AD
PRI
AR
RA
RR
RD
MIN
MIN
MIN
MIN
160
130
20
20
20
48
48
0
0
0
0
0
0
0
0
MAX
MAX
MAX
MAX
130
130
130
110
85
UNITS
UNITS
UNITS
UNITS
CLKS
CLKS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns