AT89S4051 Atmel Corporation, AT89S4051 Datasheet - Page 30

• Manufacturer Part Number: AT89S4051
• Manufacturer: Atmel Corporation

Specifications of AT89S4051

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 24 MHz
• Cpu: 8051-12C
• Max I/o Pins: 15
• Uart: 1
• Sram (kbytes): 0.25
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 2
• Isp: SPI

Figure 32-2. Flash Programming and Verification Waveforms in Parallel Mode
AT89S2051/S4051
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3390E–MICRO–6/08