DS89C420-ENL MAXIM [Maxim Integrated Products], DS89C420-ENL Datasheet - Page 52

• Manufacturer Part Number: DS89C420-ENL
• Description: Ultra-High-Speed Microcontroller
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 18. EXTERNAL CLOCK CHARACTERISTICS
*
Table 19. SERIAL PORT MODE 0 TIMING CHARACTERISTICS
*
Note: SM2 is the serial port 0, mode bit 2. When serial port 0 is operating in mode 0 (SM0 = SM1 = 0),
SM2 determines the number of crystal clocks in a serial-port clock cycle.
Specifications to -40°C are guaranteed by design and not production tested.
Specifications to -40°C are guaranteed by design and not production tested.
Clock Cycle Time
SM2 = 0
SM2 = 1
Output Data Setup to Clock Rising
SM2 = 0
SM2 = 1
Output Data Hold to Clock Rising
SM2 = 0
SM2 = 1
Input Data Hold after Clock Rising
SM2 = 0
SM2 = 1
Clock Rising Edge to Input Data Valid
SM2 = 0
SM2 = 1
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
PARAMETER
PARAMETER
(V
SYMBOL
CC
t
t
t
t
CHCX
CLCX
CLCH
CHCL
= 4.5V to 5.5V; T
SYMBOL
t
t
t
t
t
XHQX
XHDX
XLXL
QVXH
XHDV
MIN
52 of 58
10
10
(V
CC
= 4.5V to 5.5V; T
360
120
200
40
50
20
0
0
MIN
A
MAX
33MHz
= -40°C to +85°C)*
5
5
MAX
200
40
UNITS
10t
3t
2t
t
12t
4t
0
0
CLCL
ns
ns
ns
ns
CLCL
CLCL
CLCL
CLCL
MIN
CLCL
- 100
A
VARIABLE
- 10
- 10
- 100
= -40°C to +85°C)*
10t
3t
MAX
CLCL
CLCL
- 100
- 50
DS89C420
MAX
ns
ns
ns
ns
ns