DS89C450-QNG+ Maxim Integrated Products, DS89C450-QNG+ Datasheet - Page 11

• Manufacturer Part Number: DS89C450-QNG+
• Description: IC MCU FLASH 64KB 25MHZ 44-PLCC
• Manufacturer: Maxim Integrated Products
• Series: 89Cr

Specifications of DS89C450-QNG+

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-LCC, 44-PLCC
• Processor Series: DS89C450
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 4
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: DS89C450-KIT#
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

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