AT89S51-24PC Atmel, AT89S51-24PC Datasheet - Page 18

• Manufacturer Part Number: AT89S51-24PC
• Description: IC 8051 MCU 4K FLASH 40-DIP
• Manufacturer: Atmel
• Series: 89Sr

Specifications of AT89S51-24PC

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

18. Flash Programming and Verification Characteristics (Parallel Mode)
T
Figure 18-1. Flash Programming and Verification Waveforms – Parallel Mode
18
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
AT89S51
P1.0 - P1.7
P2.0 - P2.3
ALE/PROG
(RDY/BSY)
(ENABLE)
PORT 0
P3.0
P2.7
EA/V
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
= 4.5 to 5.5V
PP
Setup to PROG Low
Hold After PROG
Supply Current
t
t
SHGL
AVGL
PP
t
EHSH
V
PROGRAMMING
PP
t
DVGL
ADDRESS
DATA IN
t
GLGH
t
GHBL
t
GHDX
t
ELQV
t
GHAX
t
GHSL
LOGIC 1
LOGIC 0
BUSY
t
WC
48 t
48 t
48 t
48 t
48 t
11.5
Min
VERIFICATION
0.2
10
10
3
0
CLCL
CLCL
CLCL
CLCL
CLCL
DATA OUT
ADDRESS
t
AVQV
READY
48t
48t
48t
12.5
Max
1.0
t
10
30
33
50
EHQZ
1
CLCL
CLCL
CLCL
2487D–MICRO–6/08
Units
MHz
mA
mA
µs
µs
µs
µs
µs
V