AT89C51AC3-SLSIM Atmel, AT89C51AC3-SLSIM Datasheet - Page 133

• Manufacturer Part Number: AT89C51AC3-SLSIM
• Description: IC 8051 MCU FLASH 64K 44PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51AC3-SLSIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Flash/EEPROM Memory
4383D–8051–02/08
Table 83. Timing Symbol Definitions
Table 84. Memory AC Timing
VDD = 3V to 5.5V, TA = -40 to +85°C
Figure 68. Flash Memory – ISP Waveforms
Figure 69. Flash Memory – Internal Busy Waveforms
S (Hardware
condition)
R
B
Symbol
T
T
T
SVRL
RLSX
BHBL
PSEN#1
FBUSY bit
RST
Signals
Parameter
Input PSEN# Valid to RST Edge
Input PSEN# Hold after RST Edge
Flash/EEPROM Internal Busy
(Programming) Time
PSEN#,EA
RST
FBUSY flag
T
SVRL
T
BHBL
T
RLSX
L
V
X
Min
50
50
Typ
10
Conditions
Low
Valid
No Longer Valid
Max
Unit
ms
ns
ns
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