AT87F55WD-24JI Atmel, AT87F55WD-24JI Datasheet - Page 17

• Manufacturer Part Number: AT87F55WD-24JI
• Description: IC MICRO CTRL 24MHZ 44PLCC
• Manufacturer: Atmel
• Series: 87Fr

Specifications of AT87F55WD-24JI

• 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: OTP Quick FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Other names: AT87F55WD24JI

QuickFlash Programming and Verification Characteristics
T
Symbol
V
I
I
1/t
t
t
t
t
t
t
t
t
t
t
t
t
t
A
PP
CC
AVGL
GHAX
DVGL
GHDX
EHSH
SHGL
GHSL
GLGH
AVQV
ELQV
EHQZ
GHBL
WC
PP
= 20°C to 30°C, V
CLCL
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
Units
MHz
mA
mA
µ
µ
µ
µ
µ
V
s
s
s
s
s
17