AT89C55WD-24PI Atmel, AT89C55WD-24PI Datasheet - Page 24

• Manufacturer Part Number: AT89C55WD-24PI
• Description: IC MICRO CTRL 24MHZ 40DIP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C55WD-24PI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 20KB (20K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3 x 16 bit
• Operating Supply Voltage: 4 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No RoHS Version Available
• Other names: AT89C55WD24PI

22. Flash Programming and Verification Characteristics
T
24
A
Symbol
V
I
I
1/t
t
t
t
t
t
t
t
t
t
t
t
t
t
PP
CC
AVGL
GHAX
DVGL
GHDX
EHSH
SHGL
GHSL
GLGH
AVQV
ELQV
EHQZ
GHBL
WC
PP
= 20°C to 30°C, V
CLCL
AT89C55WD
CC
Parameter
Programming Supply Voltage
Programming Supply Current
V
Oscillator Frequency
Address Setup to PROG Low
Address Hold After PROG
Data Setup to PROG Low
Data Hold After PROG
P2.7 (ENABLE) High to V
V
V
PROG Width
Address to Data Valid
ENABLE Low to Data Valid
Data Float After ENABLE
PROG High to BUSY Low
Byte Write Cycle Time
CC
PP
PP
= 4.5V to 5.5V
Setup to PROG Low
Hold After PROG
Supply Current
PP
48t
48t
48t
48t
48t
11.5
Min
0.2
10
10
3
0
CLCL
CLCL
CLCL
CLCL
CLCL
48t
48t
48t
Max
12.5
1.0
10
30
33
80
1
CLCL
CLCL
CLCL
1921D–MICRO–6/08
Units
MHz
mA
mA
µs
µs
µs
µs
µs
V