DS8007 Maxim, DS8007 Datasheet - Page 8

• Manufacturer Part Number: DS8007
• Description: The DS8007 multiprotocol dual smart card interface is a low-cost, dual smart card reader interface supporting all ISO 7816, EMV®, and GSM11-11 requirements
• Manufacturer: Maxim

Multiprotocol Dual Smart Card Interface
AC ELECTRICAL SPECIFICATIONS—TIMING PARAMETERS FOR NONMULTIPLEXED
PARALLEL BUS (READ AND WRITE)
(V
Figure 2. Nonmultiplexed Parallel Bus Timing (Read and Write)
8
RD High to CS Low
Access Time CS Low to Data Out Valid
CS High to Data Out High Impedance
Data Valid to End of Write
Data Hold Time
RD Low to CS or WR Low
Address Stable to CS or WR High
Address to CS Low
DD
_______________________________________________________________________________________
= 3.3V, V
AD3–AD0
AD3–AD0
RD (R/W)
RD (R/W)
WR (EN)
WR (EN)
WR (EN)
WRITE
D7–D0
D7–D0
READ
CS
CS
CS
PARAMETER
DDA
= 3.3V, T
A
= +25°C, unless otherwise noted.) (See Figure 2.)
t
1
t
6
t
8
SYMBOL
t
t
t
t
t
t
t
t
1
2
3
4
5
6
7
8
t
2
t
7
ADDRESS
DATA OUT
ADDRESS
CONDITIONS
t
4
DATA IN
t
5
t
3
MIN
10
10
10
10
10
10
TYP
MAX
50
10
WRITE
RELEASE
WITH CS
WRITE
RELEASE
WITH EN
UNITS
ns
ns
ns
ns
ns
ns
ns
ns