AT89C51AC3 Atmel Corporation, AT89C51AC3 Datasheet - Page 133

• Manufacturer Part Number: AT89C51AC3
• Manufacturer: Atmel Corporation

Specifications of AT89C51AC3

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 62.5
• Sram (kbytes): 2.25
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

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No Longer Valid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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