DS89C420 Dallas Semiconducotr, DS89C420 Datasheet - Page 54

• Manufacturer Part Number: DS89C420
• Description: Ultra-High-Speed Microcontroller
• Manufacturer: Dallas Semiconducotr

POWER CYCLE TIMING CHARACTERISTICS
(V
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: Startup time for a crystal varies with load capacitance and manufacturer. Time shown is for a 11.0592MHz crystal manufactured by Fox
Note 3: Reset delay is a synchronous counter of crystal oscillations after crystal startup. Counting begins when the level on the XTAL1 pin
FLASH MEMORY PROGRAMMING CHARACTERISTICS
(V
Oscillator Frequency
Address Setup to
Address Hold After
Data Setup to
Data Hold After
Address to Data Valid
Enable Low to Data Valid
Data Float After Enable
Crystal Startup Time
Power-On Reset Delay
PROG
PROG
CC
CC
= 4.5V to 5.5V; T
= 4.5V to 5.5V; T
Electronics.
meets the V
Pulse Width
High to
PARAMETER
PROG
PARAMETER
PROG
IH2
PROG
criteria. At 33MHz, this time is 1.99ms.
PROG
PROG
A
A
Low
Low
= -40°C to +85°C) (Note 1)
= +21°C to +27°C)
Low
SYMBOL
t
t
CSU
POR
SYMBOL
1 / t
t
t
t
t
t
t
t
t
t
54 of 59
AVGL
GHAX
DVGL
GHDX
GLGH
AVQV
GHGL
ELQV
EHQZ
MIN
CLCL
48t
48t
48t
48t
MIN
65,536
85
10
TYP
4
0
CLCL
CLCL
CLCL
CLCL
8
TYP
MAX
48t
48t
48t
MAX
UNITS
100
t
6
CLCL
CLCL
CLCL
CLCL
ms
UNITS
NOTES
MHz
ms
ms
2
3