DS89C440 Maxim, DS89C440 Datasheet - Page 11
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DS89C440
Manufacturer Part Number
DS89C440
Description
The DS89C430 and DS89C450 offer the highest performance available in 8051-compatible microcontrollers
Manufacturer
Maxim
Datasheet
1.DS89C430.pdf
(46 pages)
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POWER-CYCLE TIMING CHARACTERISTICS
(V
Note 18: Startup time for a crystal varies with load capacitance and manufacturer. The time shown is for an 11.0592MHz crystal manufactured
Note 19: 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
Crystal Startup Time (Note 18)
Power-On Reset Delay (Note 19)
Data Retention
Write/Erase Endurance
Program/Time
Erase Time
CC
CC
= 4.5V to 5.5V, T
= 4.5V to 5.5V)
by Fox Electronics.
meets the V
PARAMETER
PARAMETER
IH2
criteria. At 33MHz, this time is 1.99ms.
O
= -40°C to +85°C.)
SYMBOL
SYMBOL
t
ENDURE
t
DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers
t
t
ERASE
t
PROG
CSU
POR
t
DR
11 of 46
10,000
MIN
MIN
100
4
TYP
65,536
TYP
8
MAX
MAX
40
UNITS
cycles
UNITS
years
t
ms
CLCL
s
ms