DS5003 Datasheet, PDF (4/24 Pages) Maxim Integrated Products – Secure Microprocessor Chip

Secure Microprocessor Chip
AC CHARACTERISTICS—EXPANDED BUS-MODE TIMING SPECIFICATIONS
(V_CC = 5V ±10%, T_A = 0°C to +70°C.) (Figures 1, 2)
PARAMETER
Oscillator Frequency
ALE Pulse Width
Address Valid to ALE Low
Address Hold After ALE Low
RD Pulse Width
WR Pulse Width
RD Low to Valid Data In
Data Hold After RD High
Data Float After RD High
ALE Low to Valid Data In
Valid Address to Valid Data In
ALE Low to RD or WR Low
Address Valid to RD or WR Low
Data Valid to WR Going Low
Data Valid to WR High
Data Valid After WR High
RD Low to Address Float
RD or WR High to ALE High
SYMBOL
1/t_CLK
t_ALPW
t_AVALL
t_AVAAV
t_RDPW
t_WRPW
t_RDLDV
t_RDHDV
t_RDHDZ
t_ALLVD
t_AVDV
t_ALLRDL
t_AVRDL
t_DVWRL
t_DVWRH
t_WRHDV
t_RDLAZ
t_RDHALH
12MH z
16MH z
12MH z
16MH z
12MH z
16MH z
12MH z
16MH z
CONDITIONS
MIN
1.0
2t_CLK - 40
t_CLK - 40
t_CLK - 35
6t_CLK - 100
6t_CLK - 100
0
3t_CLK - 50
4t_CLK - 130
t_CLK - 60
7t_CLK - 150
7t_CLK - 90
t_CLK - 50
t_CLK - 40
MAX
16.0
5t_CLK - 165
5t_CLK - 105
2t_CLK - 70
8t_CLK - 150
8t_CLK - 90
9t_CLK - 165
9t_CLK - 105
3t_CLK + 50
0
t_CLK + 50
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC CHARACTERISTICS—EXTERNAL CLOCK DRIVE
(V_CC = 5V ±10%, T_A = 0°C to +70°C.) (Figure 3)
PARAMETER
External Clock High Time
External Clock Low Time
External Clock Rise Time
External Clock Fall Time
SYMBOL
t_CLKHPW
t_CLKLPW
t_CLKR
t_CLKF
12MH z
16MH z
12MH z
16MH z
12MH z
16MH z
12MH z
16MH z
CONDITIONS
MIN
MAX
UNITS
20
ns
15
20
ns
15
20
ns
15
20
ns
15
4 _______________________________________________________________________________________