AT89C51AC3 Atmel Corporation, AT89C51AC3 Datasheet - Page 23

• 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

4383D–8051–02/08
CPU Clock
Figure 11. External Data Read Waveforms
Notes:
Figure 12. External Data Write Waveforms
CPU Clock
Notes:
RD#1
WR#1
ALE
ALE
P0
P2
P0
P2
1. RD# signal may be stretched using M0 bit in AUXR register.
2. When executing MOVX @Ri instruction, P2 outputs SFR content.
1. WR# signal may be stretched using M0 bit in AUXR register.
2. When executing MOVX @Ri instruction, P2 outputs SFR content.
P2
P2
DPL or Ri
DPL or Ri
DPH or P22
DPH or P22
D7:0
D7:0
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