AT89LV55-12PI Atmel, AT89LV55-12PI Datasheet - Page 20

• Manufacturer Part Number: AT89LV55-12PI
• Description: IC 8051 MCU FLASH 20K 40DIP
• Manufacturer: Atmel
• Series: 89LVr

Specifications of AT89LV55-12PI

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 12MHz
• Connectivity: UART/USART
• 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): 2.7 V ~ 6 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
• Interface Type: UART
• Maximum Clock Frequency: 12 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3 x 16 bit
• Operating Supply Voltage: 2.7 V to 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Peripherals: -
• Lead Free Status / Rohs Status: No

19. Flash Programming and Verification Characteristics
T
20. Flash Programming and Verification Waveforms (V
20
A
Symbol
V
I
1/t
t
t
t
t
t
t
t
t
t
t
t
t
t
PP
AVGL
GHAX
DVGL
GHDX
EHSH
SHGL
GHSL
GLGH
AVQV
ELQV
EHQZ
GHBL
WC
PP
= 0°C to 70°C, V
CLCL
AT89LV55
Parameter
Programming Enable Voltage
Programming Enable Current
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
PP
PP
Setup to PROG Low
Hold After PROG
CC
= 5.0V ± 10%
PP
48t
48t
48t
48t
48t
11.5
Min
10
10
3
1
0
CLCL
CLCL
CLCL
CLCL
CLCL
PP
= 12V)
48t
48t
48t
Max
12.5
110
1.0
1.0
2.0
12
CLCL
CLCL
CLCL
0811E–MICRO–9/08
Units
MHz
mA
ms
µs
µs
µs
µs
V